Ceh v8 labs module 17 evading ids, firewalls and honeypots

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Ceh v8 labs module 17 evading ids, firewalls and honeypots

  1. 1. C E H Lab M a n u a l Evading IDS, Firewalls, and Honeypots M o d u le 17
  2. 2. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Intrusion D e t e c t i o n S y s t e m A n in tr u s io n m o n ito rs d e te c tio n s y s te m n e tir o r k a n d /o r ( ID S ) s y s te m is a d e ric e a c tiv itie s f o r o r s o ftw a re a p p lic a tio n m a lic io u s a c tiv itie s th a t o r p o lic y v io la tio n s a n d p ro d u c e s re p o rts to a M a n a g e m e n t S ta tio n . I CON KEY [£ Z 7 V a lu a b le in fo rm a tio n S T est your k n o w le d g e = W e b e x e rc is e m W o r k b o o k r e v ie w L a b S c e n a r io Due to a growing number of intrusions and since the Internet and local networks have become so ubiquitous, organizations increasingly implementing various systems that monitor IT security breaches. Intrusion detection systems (IDSes) are those diat have recently gained a considerable amount of interest. An IDS is a defense system that detects hostile activities 111 a network. The key is then to detect and possibly prevent activities that may compromise system security, 01‫ ־‬a hacking attempt 111 progress including reconnaissance/data collection phases that involve, for example, port scans. One key feature of intrusion detection systems is their ability to provide a view of unusual activity and issue alerts notifying administrators and/or block a suspected connection. According to Amoroso, intrusion detection is a “process ot identifying and responding to malicious activity targeted at computing and networking resources.” 111 addition, IDS tools are capable ot distinguishing between insider attacks originating from inside the organization (coming from own employees or customers) and external ones (attacks and the threat posed by hackers) (Source: http://www.windowsecurity.com) 111 order to become an expert penetration tester and security administrator, you must possess sound knowledge of network intrusion prevention system (IPSes), IDSes, malicious network activity, and log information. L a b O b je c tiv e s & Too ls D e m o n s tra te d in th is lab a re lo c a te d a t D:CEHT oo lsC E H v8 M o du le 17 Evading IDS, F ire w a lls , and The objective ot tins lab is to help students learn and detect intrusions network, log, and view all log tiles. In tins lab, you will learn how to: ■ Install and configure Snort 111 a IDS ■ Run Snort as a service ■ Log snort log files to Kiwi Syslog server ■ Store snort log files to two output sources simultaneously H o n eyp o ts L a b E n v ir o n m e n t To earn‫ ׳‬out tins lab, you need: ■ A computer mnning Windows Seiver 2012 as a host machine ■ A computer running Windows server 2008, Windows 8, 01‫־‬Windows 7 as a virtual maclnne WniPcap drivers nistalled 011 the host maclinie C E H Lab Manual Page 847 Ethical Hacking and Countemieasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  3. 3. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots ■ Notepads-+ installed 011 the host machine ■ Kiwi Svslog Server installed 011 the host machine ■ Active Perl installed 011 the host machine to mil Perl scnpts ■ Administrative pnvileges to configure settings and run tools ■ A web browser with Internet access L a b D u r a t io n Time: 40 Minutes O v e r v ie w o f In tr u s io n D e te c tio n S y s te m s An intrusion detection system (IDS) is a device 01‫ ־‬software application that monitors network and/01‫ ־‬system activities for malicious activities 01‫ ־‬policy violations and produces reports to a Management Station. Some systems may attempt to stop an intrusion attempt but tins is neither required 1101‫ ־‬expected of a monitoring system. 111 addition, organizations use intrusion detection and prevention systems (IDPSes) for other purposes, such as identifying problems with security policies, documenting existing threats and deterring individuals from violating security policies. IDPSes have become a necessary addition to the security infrastructure of nearly even* organization. Many IDPSes can also respond to a detected threat by attempting to prevent it from succeeding. They use several response techniques, which involve the IDPS stopping die attack itself, changing the security environment. IDPSes are primarily focused 011 identifying possible incidents, logging information about diem, attempting to stop them, and reporting them to security administrators. Pick an organization diat you feel is worthy of your attention. Tins could be an educational institution, a commercial company, 01‫־‬perhaps a nonprofit charity. O v e rv ie w Recommended labs to assist you 111 using IDSes: ■ Detecting Intrusions Using Snort ■ Logging Snort Alerts to Kiwi Svslog Server ■ Detecting Intruders and Worms using KFSensor Honeypot IDS ■ HTTP Tunneling Using HTTPort L a b A n a ly s is Analyze and document the results related to tins lab exercise. Give your opinion 011 your target’s security posture and exposure. C E H Lab Manual Page 848 Ethical Hacking and Countermeasures Copyright © by EC-Council A ll Rights Reserved. Reproduction is Stricdy Prohibited.
  4. 4. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots PLE A SE C E H Lab Manual Page 849 TA LK TO Y O U R IN S T R U C T O R IF Y O U R E L A T E D TO T H IS LAB. H A V E Q U E ST IO N S Ethical Hacking and Countermeasures Copyright © by EC-Council A ll Rights Reserved. Reproduction is Stricdy Prohibited.
  5. 5. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots D e l e c t i n g Intrusions u s i n g S n o r t S n o r t is a n o p e n s o u rc e n e tir o r k in tr u s io n p r e v e n tio n a n d d e te c tio n s y s te m ( ID S /IP S ) . I C ON KEY / V a lu a b le in fo rm a tio n T est your k n o w le d g e □ W e b e x e rc is e m W o r k b o o k r e v ie w L a b S c e n a r io The trade of die intrusion detection analyst is to find possible attacks against their network. The past few years have witnessed significant increases in DDoS attacks 011 the Internet, prompting network security to become a great concern. Analysts do tins by IDS logs and packet captures while corroborating with firewall logs, known vulnerabilities, and general trencUng data from the Internet. The IDS attacks are becoming more culuired, automatically reasoning the attack scenarios ni real time and categorizing those scenarios becomes a critical challenge. These result ni huge amounts of data and from tins data they must look for some land of pattern. However, die overwhelmnig dows of events generated by IDS sensors make it hard for security adnnnistrators to uncover hidden attack plans. 111 order to become an expert penetration tester and security administrator, you must possess sound knowledge of network IPSes, IDSes, malicious network activity, and log information. & Too ls D e m o n s tra te d in L a b O b je c tiv e s th is lab a re lo c a te d a t D:CEH- The objective of tins lab is to familiarize students widi IPSes and IDSes. Too lsC E H v8 111 tliis lab, you M o du le 17 Evading IDS, F ire w a lls , and H o n eyp o ts need to: ■ Install Snort and verify Snort alerts ■ Configure and validate snort.conf file ■ Test the worknig of Snort by carrying out an attack test ■ Perform mtmsion detection ■ Configure Omkmaster L a b E n v ir o n m e n t To earn‫ ־‬out dns lab, you need: C E H Lab Manual Page 850 Ethical Hacking and Countenneasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  6. 6. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots ■ A computer running Windows Server 2012 as a host machine ■ Windows 7 running on virtual macliuie as an attacker macliuie ■ WmPcap dnvers installed on die host machine ■ Notepad++ installed on the host macliuie ■ Kiwi Svslog Server installed on the host macliuie ■ Active Perl installed on the host machine to nui Perl scripts ■ Administrative privileges to configure settings and run tools L a b D u r a t io n Time: 30 Minutes O v e r v ie w In tr u s io n Y ou can also download Snort from http://www.s rt. g. 110 01 o f In tr u s io n P r e v e n tio n S y s te m s a n d D e te c tio n S y s te m s A11 IPS is a n e tw o r k s e c u rity appliance that m o n ito rs a network and system activities for m a lic io u s activity. The main functions of IPSes are to id e n tify malicious activity, log in fo rm a tio n about said activity, attempt to b lo c k /s to p activity, and report activity. A11 IDS is a device or software application that m o n ito rs network and/or system activities for m a lic io u s activities or p o lic y v io la tio n s and produces re p o rts to a Management Station. It performs intrusion detection and attempt to s to p detected possible in c id e n ts . L a b T a s k s 1. Start W in d o w s 2. To uistall Snort, navigate to In s tall S nort S e rv e r 2 0 1 2 on the host machine. Install Snort. D :CEH -ToolsC EHv8 M o du le 17 Evading IDS, F ire w a lls , and H o n eyp o tsln tru sio n D e te c tio n ToolsSnort. 3. Double-click the wizard appears. Snort_2_9_3_1_ln staller.exe file. The Snort mstallation 4. Accept the L ic en se A g re e m e n t and install Snort with the diat appear step -b y-step 111 the wizard. . l__ Snort is an open source network intrusion prevention and detection system (ID S / IP S ). C E H Lab Manual Page 851 d e fa u lt options 5. A window appears after successful installation of Snort. Click the button. 6. Click O K to exit the S n ort In s ta lla tio n C lose window. Ethical Hacking and Countemieasures Copyright © by EC-Council A ll Rights Reserved. Reproduction is Stricdy Prohibited.
  7. 7. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Snort 2.9.3.1 SetuD ‫ °' ־‬I Snort 2.9.3.1 Setup (& * * Snort has successfully been installed. r Snort also requires WinPcap 4.1.1 to be installed on this machine, WinPcap can be downloaded from: http://www.winpcap.org/ It would also be wise to tighten the security on the Snort installation directory to prevent any malicious modification of the Snort executable. Next, you must manually edit the 'snort.conf file to specify proper paths to allow Snort to find the rules files and classification files. OK Figure 1.1: Snort Successful Installation Window 7. Snort requires W in P ca p to be installed on your machine. 8. Install W inPcap by navigating to D :C EH -ToolsC EH v8 IDS, F ire w a lls , and HoneypotsM ntrusion double-clicking W in P ca p V^/ W inPcap is a tool for link-layer network access that allows applications to capture and transmit network packets bypass the protocol stack M o du le 17 Evading D e te c tio n Too lsS no rt, and 4 1 _2.exe. 9. By default, Snort installs itself in disk drive in which OS installed). C:Snort (C: or D: depending upon die 10. Register on die Snort website h ttp s ://w w w .sn o rt.o rg /sig n u p 111 order to download Snort Rules. After registration comples it will automaticallv redirect to a download page. 11. Click die G et R ules button to download die latest mles. 11tins lab we have 1 downloaded sn o rtru les-sn ap sh ot-2931 ■tar.gz. 12. Extract die downloaded rales and copy die extracted folder 111 tins padi: D:CEH -ToolsC EHv8 M o du le 17 E vading IDS, F ire w a lls , and H o n eyp o tsln tru sio n D e te c tio n ToolsSnort. 13. Rename die extracted folder to snortrules. 14. Now go to die e tc folder 111 die specified location D:CEH -ToolsC EHv8 M o du le 17 Evading IDS, F ire w a lls , and H o n eyp o tsln tru sio n D e te c tio n of die extracted Snort rales, copy die s n o rt.c o n f tile, and paste diis tile 111 C:Snortetc. T o o lsS n o rtsn o rtru lese tc 15. The S n o rt.c o n f file is already present 111 die Snort rales S n o rt.c o n f file. C:Snortetc; 16. Copv die so_rules folder from D :C EH -ToolsC EH v8 replace diis file with M o du le 17 Evading IDS, F ire w a lls , and H o n eyp o tsln tru sio n D e te c tio n T oo lsS no rtsn o rtru les C E H Lab Manual Page 852 and paste it 111 C:Snort. Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  8. 8. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 17. Replace die p rep ro c r u le s folder trom D:CEH -ToolsC EHv8 M o du le 17 Evading IDS, F ire w a lls , and HoneypotsM ntrusion D e te c tio n T oo lsS no rtsn o rtru les and paste it 111 C:Snort. 18. Copy all die tiles from dus location: E vading IDS, F ire w a lls , T oo lsS no rtsn o rtru lesrules H TASK 2 V e rify S n ort A le rt and D :CEH -ToolsC EHv8 M o du le 17 H o n eyp o tsln tru sio n D e te c tio n to C:Snortrules. 19. Now navigate to C:Snort and right-click folder bin, and click trom die context menu to open it 111 a command prompt. C m d H ere 20. Type sn o rt and press E nter. Administrator: C:Windowssystem32cmd.exe - snort C:Snortbin/snort Running in packet dunp node — ■ In it ia liz in g Snort ■ ■ ‫—יי‬ In it ia liz in g Output Plugins? pcap DAQ configured to passive. The D uersion does not support reload. AQ Acquiring network t r a f f i c fron "DeuiceNPF_<0FB09822-88B5-411F-AFD2-FE3735A9?7B B> _ Decoding Ethernet — -- In it ia liz a t io n Conplete --— y To print out the T C P / IP packet headers to the screen (i.e. sniffer mode), type: snort — v. o'‫׳‬ ‫״ ״‬ ■an — Snort? <*‫־‬ »> Uersion 2.9 .3 .1-WIN32 GRE <Build 40) By Martin Roesch 8 The Snort Tean: http://www.snort.org/snort/snort-t r Copyright < > 1998-2012 So u rce fire, In c ., et a l. C Using PCRE uersion: 8.10 2010-06-25 Using ZLIB uersion: 1.2.3 Connencing packet processing <pid-756> Figure 1.2: Snort Basic Command 21. The In itia liza tio n C o m p le te message displays. Press C trl+C. Snort exits and comes back to C:Snortbin. 22. Now type sn o rt -W . Tins command lists your machine’s physical address, IP address, and Ediernet Dnvers, but all are disabled by default. Administrator: C:Windowssystem32cmd.exe Snort exiting C:Snortbin‫ נ‬snort -W -*> Snort! <*— Uersion 2.9.3.1-WIN32 G E (Build 40> R By Martin Roesch 8 The Snort Team: http://www.snort.org/snort/snort-t r Copyright < > 1998-2012 Sourcefire, Inc., et al. C Using P R version: 8.10 2010-06-25 CE Using ZLIB uersion: 1.2.3 Index Physical Address IP Address Deuice N e am Description 1 00:00:00:00:00:00 disabled DeuiceNPF_<0FB09822-88B5-41IFAFD2-FE3735A977BB> Microsoft Corporation 2 00:00:00:00:00:00 disabled De‫ ״‬iceNPF_<0BFD2FA3-2E17-46E3B614-0FC19B5DDA25> 3 00:00:00:00:00:00 disabled DeuiceNPF_<lD13B78A-B411-4325rQRA<JRFOP?JM ‫־‬ V M 4 D4:BE:D9:C3:C3:C C disabled DeuiceNPF_<2A3EB470-39FB-48809A79-77E5AE27E530> Realtek PCIe G E Family Controller B C:Snortbin> Figure 1.3: Snort -W Command 23. Observe your Ediernet Driver in d ex n u m b er and write it down; 111 dus lab, die Ediernet Driver index number is 1 . 24. To enable die Ediernet Driver, 111 die command prompt, type sn o rt 2 and press Enter. C E H Lab Manual Page 853 -d e v - i Ethical Hacking and Countenneasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  9. 9. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 25. E 7 To specify a log into logging directory, type snort — dev — 1 /logdirectorylocationand, Snort automatically knows to go into packet logger mode. You see a rapid scroll text Ethernet Driver is enabled and working properly. 111 die command prompt. It means Administrator: C:Windowssystem32cmd.exe - snort -dev - 4 i C:Snortbin,sno rt -dev - i 4 Running in packet uu11‫׳‬p 1'iuut; — = In it ia liz in g Snort = — = = In it ia liz in g Output Plugins? pcap DAQ configured to passive. The DAQ version does not support reload. Acquiring network t r a f f i c fron "DeviceNPF_<2A3EB470-39FB-4880-9A7977‫ ־‬E5AE27E53 B >". Decoding Ethernet — ■ In it ia liz a t io n Conplete ■*— ■ o'‫~> ׳‬ ‫״״״״‬ r .u i -»> Snort? <*Uersion 2 .9 .3 .1-WIN32 GRE <Build 40> By Martin Roesch 8 The Snort Tean: http://www.snort.org/snort/snort-t r Copyright < > 1998-2012 So u rce fire, In c ., et a l. C Using PCRE version: 8.10 2010-06-25 Using ZLIB version: 1.2.3 Connencing packet processing <pid=2852> 11/14-09:55:49.352079 ARP who‫ ־‬has 10.0.0.13 t e l l 10.0.0.10 Figure 1.4: Snort — — 4 Command dev i 26. Leave die Snort command prompt window open, and launch anodier command prompt window. 27. Li a new command prompt, type ping g o o g le .c o m and press Enter. £ Q Ping [-t] [-a] [-n count] [- size] [-£] [-i T T L] 1 [-v TO S] [-r count] [-s count] [[-j host-list] | [-k host-list]] [-w timeout] destination-list Figure 1.5: Ping googje.com Command 28. Tliis pmg command triggers a Snort alert in the Snort command prompt with rapid scrolling text. To enable Network Intrusion Detect ion System (N ID S ) mode so that you don’t record every single packet sent down the wire, type: snort -dev 1 ./log-h 192.168.1.0/24-c snort.conf. Administrator: C:Windowssystem32cmd.exe - snort -dev - 4 ‫־‬TTD i '4.125.236.85:443 10.0.0.10:51345 < TCP TTL:56 TOS:0x0 ID:55300 IpLen:20 DgnLe ‫־‬ 95 nM .flP.M • Seq: 0x81047C40 Ack: 0x4C743C54 Win: 0xFFFF TcpLen: 20 M 7 03 02 00 32 43 3F 4C 22 B4 01 69 AB 37 FD 34 2C?L‫ . . ״‬i. 7 . 4 IF 3F 70 86 CF B8 97 84 C9 9B 06 D7 11 6F 2C 5B .? p o ,[ D 8A B0 FF 4C 30 5B 22 F4 B9 6C BD AE E8 0E 5A L0[‫ . . ״‬l Z F F6 7D 55 31 78 EF ..>Ulx. 11/14-09:58:16.374896 D4:BE:D9:C3:C3:CC 00:09:5 < B: AE: 24: CC type:0x800 len:0x36 ‫־‬ 10.0.0.10:51345 -> 74.125.236.85:443 TCP TTL:128 TOS:0x0 ID:20990 IpLen:20 DgnLe n:40 DF Seq: 0x4C743C54 Ack: 0x81047C77 Win: 0xFB27 TcpLen: 20 .1/14-09:58:17.496035 ARP who-has 10.0.0.13 t e l l .1/14-09:58:18.352315 ARP who-has 10.0.0.13 t e l l .1/14-09:58:19.352675 ARP who-has 10.0.0.13 t e l l 1 .0.0.10 0 1 .0.0.10 0 1 .0.0.10 0 Figure 1.6: Snort Showing Captured Google Request C E H Lab Manual Page 854 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  10. 10. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 29. Close both command prompt windows. The verification of Snort installation and triggering alert is complete, and Snort is working correcdy 111 verbose mode. T A S K 3 C o nfigure sn o rt.c o n f File 30. Configure die sn o rt.c o n f file located at C :Snortetc. 31. Open die s n o rt.c o n f file widi Notepad++. 32. The s n o rt.c o n f file opens screenshot. Notepad++ as shown 111 111 the following & Make sure to grab the rules for the version you are installing Snort for. m Log packets in tcpdump format and to produce minimal alerts, type: snort -b -A fast -c snort.conf Figure 1.7: Configuring Snortconf File in Notepad++ 33. Scroll down to die S te p #1: S e t th e n e tw o rk v a ria b le s section (Line 41) of snort.conf file. 111 the H O M E_N ET line, replace any widi die IP addresses (Line 45) of die machine where Snort is mnning. -!□ X ' *C:Sn0ftetc$n0rtx0nf - Notepad+ Be Edit Search 'iict* Encoding Language Settings Macro Run Plugns frndcw o 10 % ‫& » ד‬ « JS * C| 9 »‫* » צ‬fe * x 33 5 | I HJ □ I I I i | !» '?‫׳‬ H molcwf | Xxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx 4 4 4 # Se # : Sec c e n o variables. F x itoie m 1 ep 1 h etw rk o roraaclon. □ » setup tne n ecvcrx aaarcaaca yo are crotectino u ir v a r HOME_»ET 110.0.0.101 : *cat situations m Notepad++ is a free source code editor and Notepad replacement that supports several languages. It runs in the M S Windows environment. ygth: 25421 lines :657 4:‫ ת‬C l:2 S 0 5 e 5 d Figure 1.8: Configuring Snortconf File in Notepad++ 34. Leave die EX TER N A L_N ET C E H Lab Manual Page 855 any line as it is. Ethical Hacking and Countemieasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  11. 11. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots m The element ’any’ can be used to match all IPs, aldiough ’any’ is not allowed. Also, negated IP ranges diat are more general dian non-negated IP ranges are not allowed. 35. If you have a DNS Server, then make changes 111 the DNS_SERVERS line bv replacing $H O M E _N E T with your DNS Server IP address; otherwise, leave diis line as it is. 36. The same applies to SAITP_SERTE,RS, HTTP_SERTE.RS, SQL_SERrERS, TELNET_SERVERS, and SSH_SERTRS. 37. Remember diat if you don’t have any servers running on your machine, leave the line as it is. DO N O T make any changes 111 diat line. 38. Scroll down to R U LE_PATH (Line 104). 111 Line 104 replace ../rales widi C:Snortrules, 111 Line 105 ../so_rules replace with C:Snortso rules, and 111 Line 106 replace ../p rep ro c ru les with C:Snortpreproc rules. _ |a Ptcs1x x tc o n f Notepad♦ ♦ Erie Ldit Search *1e« Encoding Language SetDngi 0 M e s a i i J f Macro R u ‫[ ! . ־‬IF □ ft fl| P C x ‫ך‬ Piugnj ftmdow I X a i l i f l *9‫׳‬ H cnoccorf | ♦ Kote r o r Wir.dowa usera: You are aavisea to r a re tm a ar. absolute pa tn . ♦ such as: c :3 n o r tr u le s var RU1X_PUH C :S n o rtru le s v a r SO RULE PATH C :S n o rta o ru le a ■war PRrPROC R^LE PATH C: S n o rtp r ‫ ־‬pro=_xrule3 10‫ד‬ # I f you are usin g re p u ta tio n preprocessor a c t these 1:9 # C u rre n tly tiie re i s a bug w ith r e la t iv e paths, th ey are r e la t iv e to where sno rt i3 # n o t r e la t iv e to s n o rt.c o n f lilc e the above v a ria b le s 4 Thia i s caa ple cely in c o n s is te n t w ith how oth e r ▼ars work, BCG 5 9986 l- l t s e t th e anaciute patn a p p ro p ria te ly 1*3 v a r HHTTELISTPATH . . / r u le s 114 var BUICK_LI5T_PAIK . ./ r u le s ua Rule variable names can be modified in several ways. You can define metavariables using die $ operator. These can be used with the variable modifier operators ? and - t step #2: con n a u re tr.c decoder. For sore in d o rs a tio n , see rta im e .decode 1 1 ? * Stop gene ric decode events; c o n fig disable_decod«_alerts :;4 • Stop A le rta on experim ental TCP option a ccr.Tlg dl**ble_copopt_experim ent» !_ • 1 * 1 ‫* ־‬ . 1‫־‬ 2 ‫״‬ 4 Stop A lc r ta on obaolet■ TCP option■ c c r.ria d19anie_t cpo pt_cb ao le te _a ie rt ‫ג‬ 1:9 1 Stop A le rts on T/TCP a le rts <i______________________ !1______________________ Ncirrwl Ltil file length: 25439 lines: 657 V Ln: 106 Cot :iS S*1:0 UNIX ANSI > N S I Figure 1.9: Configuring Snortconf File in Notepad++ 39. 111 Line 113 and 114 replace ../rules widi C:Snort rules. C:Snortetcsnort.conf - Notepad* file tdit Search View Encoding Longuogc Settings Macro Run Plugre ftmdcvr ! o‫׳‬MS d 83 4 * B| ♦ < ft *a -* - ‫ ז‬nil S 1 1 »‫צ‬ 3 * J l i i i i f l ‫«י‬ H noco&rf I 103 f aucn a3: c 1 a n o rtru ie a 104 var RtJLEPATfl C :3 n o rtru le a 105 var SC_ROLE_PAIH C :3 n o rtso _ ru l« » :06 var PREPROCRULEPATH C :S nortN preproc_rulea 108 *.09 110 111 t*.? ‫דלל‬ f z r you are uaina re p u ta tio n preprocessor act tneae $ C u rre n tly th ere ia a bug w ith r e la t iv e paths, th ey are r e la t iv e to whereanort ia f no t r e la t iv e co •n ort.co nX l i k « th e above v a ria b le s • Thia 1 a com pletely ine on aia ten t w ith hew eth e r vara werlr, BUG 89986 4 Smt th • absolute path a p p ro p ria te ly var white L IS I PAIH c :s n o r t r u ie a l 117 4 Seen #3: Configure the decoder. 71: B cm A ciM m si.E iii aaalm ltal Foe ‫״־‬ore information, 9 .. BSirME. decade angth: 25d51 lines:657_______ Ln:1» Col:35 S«l:0 Figure 1.10: Configuring Snort.conf File in Notepad++ C E H Lab Manual Page 856 Etliical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  12. 12. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 40. Navigate to C :Snortrules and create two tiles and name them w h ite jis t.r u le s and b la c k jis t.r u le s make sure die two tiles extensions are m The include keyword allows other rule files to be included within the rule file indicated on die Snort command line. It works much like an #include from die C programming language, reading the contents o f the named file and adding the contents in the place where die include statement appears in die file. .rules. 41. Scroll down to S tep #4 : C o nfigure d yn am ic loaded lib ra ries section (Line 242). Configure d yn am ic loaded lib ra ries in this section. 42. At padi to dynamic preprocessor libraries (Line 247), replace /usr/lo cal/lib/sn o rt_d yn am icp rep ro cessor/ with your dynamic preprocessor libranes tolder location. 43. 111 tins lab, dynamic preprocessor libraries are located at C :Snortlibsnort_dynam icpreprocessor. .‫־ ־ן‬ C:Sn0rletcs1x x U 0nf Notepad ♦♦ 7‫־ ־‬ Erie Ld!t Search Vie* Incoding Language Settings Macro Run P 1 < 3 ftmdew J Kg 1 O IM e % l ‘l| M *a * * x ‫ז‬ X [E 3 V H tno*.coti j 2 • U 245 246 242 2‫9ז־‬ 250 2‫צ‬252 253 H U Preprocessors are loaded and configured using the ‘preprocessor’ keyword. The format o f die preprocessor directive in the Snort rules file is: preprocessor <name>: <options>. Step *4: Configure dynamic loaded lib ra rie s . 70- e o ii In fo !station, see Snore Manual, Configuring 5r.cn - Dynamic Modules ♦ pat& to dynamic preprocessor lib ra rie s f patn to dynamic preprocessor lib ra rie s dytlMacpreprocessor directory C:Sncrtlib3nort dynaai ^preprocessor| * path to base preprocessor engine ciyr.anlceng 1 ne /u9r/10cal/llb/sn0rL_£iyna»lcer.glne/ilbsr_er.gir.e.30 V t path to dynamic rules lib ra rie s dynamlcdetecclon directory /u sr/local/1lb/anort_dynamlcr ulea 255 ? 5‫־‬ 4 step fs : Contiaure preprocessors 4 For more information, see the Snort Manual, Configuring Snort ‫ ־‬Preprocesso » 4 GTP Control Channle Preprocessor. For note information, see RFA2ME.OTP V preprocessor aces porta 1 2123 3386 2152 > 2»‫צ‬ f In lin e packet normalization. For mozt information, see R£AD2. normalize 4 Does notfting in IOS node r«pr0c«110r nornmlixe_ip4 preprocessor r.crmai1 se_top1 1p9 eon scream preprocessor norma lie e ic m p i czeproceaaor normalize lp« 3 25 <i N.mul u»t file length: 25 S linttt: 6 7 44 5 In :247 Col :69 S*i:0 UNIX ANSI 1 NS Figure 1.11: Configuring Snort.coiif File in Notepad++ 44. At padi to base preprocessor (or dvnamic) engine (Line 250), replace /usr/lo cal/lib/sn o rt_d yn am icen g in e/lib sf_en gin e.so witii your base preprocessor engine C :Snortlibsnort_dynam icenginesf_engine.dll. m Preprocessors allow the functionality o f Snort to be extended by allowing users and programmers to drop modular plug-ins into Snort fairly easily. Figure 1.12: Configuring Snort.conf File in Notepad++ C E H Lab Manual Page 857 Ethical Hacking and Countemieasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  13. 13. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 45. C o m m en t (#) die dynamic rules libraries line as you already configured die libraries 111 dynamic preprocessor libraries (Line 253). C:Snortet*V r c f < • Notepad♦♦ f Be Ldit Scorch View Encoding Language Settings Macro Run Piugns ftndcvr Z o 'He 1 *•‫^0 ־‬ !3 1[f3 b is b - o x ^ !« ‫•׳‬ ,9 ******** w************** *******mm************* * Step *4 : C onfinure dynamic loaded lib r a r ie s . t For core ln lc rm a cio n , see Snore Manual, C on figu rin g Snort - Dynanlc Modules # ***# # ***** **tM M # # # # # # # **# # **M ****M M *# # t**** ** .* -r Note: Preprocessor code is nrn before the detection engine is called, but after the packet has been decoded. The packet can be modified or analyzed in an out-of-band manner using this mechanism. ■‫י‬g| 249 250 * r a th to base preprocessor engine dyr.anu.ceng in - C :3 n o rtlib s n o rt_ d y n s n 1 ic e n g in e s f_ e n g in e .d ll ♦ path to dynamic ru le s lib r a r ie s > dynagu.c‫ ;׳‬l«c«cclon d lr « c to r y /u s r/lo c a l/'llb /s n o rt^ a y n a .-v l::!. 1««1 V step *M C onriaurc preprocessors * Por more m fonkaeion, see the Snore Manual, C o n figu rir.c Snort ‫ ־‬Preprocesso * GTP C on trol C h.n nl• Preprocessor. For * o r . in fo rw a tio n , ‫ • • י‬RZASME.OTP * preprocessor 0 -c : p o rts ( 2123 3386 2152 ) I In lin e packet n o rm a liz a tio n . For store in£ on aa tlon , sec ?*1 !‫. ב ג‬norm alize * Does no tm na in IDS mode preprocessor norm elize_ip4 preprocessor r.c rx a l1 ze_‫ ־‬cp: ip s ecr. 3‫ ־‬rear: preprocessor n c r» o l1 ze_1 cmp1 preprocessor norm alize l p 6 I teal fie length :25446 ling :557 Ln:253 Col ;3 Sd :0 I Figure 1.13: Configuring Snortconf File in Notepad‫—!־‬ 1 ‫־‬ 46. Scroll down to S te p #5: C o nfigure P reprocesso rs section (Line 256), die listed preprocessor. Do nothing 111 IDS mode, but generate errors at mntime. m IPs may be specified individually, in a list, as a C ID R block, or any combination o f die duee. 47. Comment all the preprocessors listed each preprocessors. 111 diis section by adding # ‫1 *1 ־ רי‬ C:Sn0rtetcsnort conf Notepad* lit befo re L3t Search View Encoding Language Settings Macro Run Plugre Aatdcw I o ‫ י‬e » ‫־‬i * f r|» e * ‫ - > ׳‬BQ| s»‫י‬f l s ■ ‫ ש‬e ^ a > h i t! & ‫ז‬ f■ liltllttttttttitiitlllllttttttttttttttttllllltttttl Preprocessor *¥¥¥*¥f T WWf ¥¥¥¥¥f *TT¥¥ ¥¥¥r t ¥¥¥¥TWWWT ¥¥¥r ¥ TT¥¥W¥TTT T > REAnJE.GTP ♦ 4 ♦ ♦ I ♦ In lin e packet n o rm a liz a tio n . For 1 Does noth in g in ZDS node preprocessor normal1ze_1p4 preprocessor n o rm a lis e tc p : ip s e! preprocessor normalize_lcmp4 preprocessor normal1 se_1 p6 : in fo rm a tio n , see R£AI»‫׳‬E. norm alize ♦preprocessor norjralire ic p mC • Target-based IP de fragm entation. For more information, see BLADME. frag3 preprocessor tra g 5 _ g lo b a l: max_Irags 6SSS6 preprocessor troa3 engine: p o lic y windows dete ct_a r.*1 a i 1 es cverlap_1 1 a n t 10 ann_fra01r.cnt_length 100 tim eout m Many configuration and command line options o f Snort can be specified in the configuration file. Format: config <directive> [: <value>] V la r g c t s is c a scacecul insp e ctio n /o trca m reassembly. preprocessor serea»S_global; tr a c k e c p yes, tr*ck_u dp yaa, tra c k _ 1 cnc no, fo r xcrc m ro ra tio n , ace RLADKt.streanb MX_tcp 3 2 4 , 614 rax_uap 131072, max_act1 ve_responses 2, m in response aaconda 5_________________ mth246 lin.:57 y : 55 e 5 1:269 Col:3 Sd 0 Figure 1.14: Configuring Snort.conf File in Notepad‫־‬l— 1 ‫־‬ 48. Scroll down to S te p #6 : C o nfigure o u tp u t plugins (Line 514). 111 tins step, provide die location of die c la s s ific a tio n .c o n fig and re fe re n c e .c o n fig files. 49. These two files are 111 C :Snortetc. Provide diis location of files 111 configure output plugins (111 Lines 540 and 541). C E H Lab Manual Page 858 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  14. 14. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots lit 0 CASnortettsnmconf Notepad* ♦ idit Jjcareh view Incoding Language Settings Macro Run Plugns ftmdcw '- I‫ם‬ I ‫ י‬hh« a , & * * r !| ‫ ס‬e m% > * ‫ ז -־ ־ י י‬djae s i s c e )"B •ncCcorf ‫ ף‬step 46: cor.riou re c utpu t p lu gin s 4 5 *‫׳‬j ?or more in fo rm a tio n , see Snort Manual, C on figu rin g Snort - Output Modules[ 5!« =j r — il< " 51fl 519 520 521 Si'i4 523 524 ca Tlie frag3 preprocessor is a targetbased IP defragmentation module for Snort. * u n ifie d ? 4 aeeonsenaaa r c r !cost i n s t a lls 4 c u tp u t u n ifie d 2 : filenam e m erged.log, l i m i t 128, nosts3«r, wpl3_CTrent_type3, vlan_event_type3 ‫ ־‬A d d itio n a l c o n fig u ra tio n fo r s p e c ific tjp e s o f i n s t a lls # c utpu t a le rt_ u n i£ ie d 2 : filenam e s n o r t.a le r t , l i i a i t 125, nosCaap f o u tp ut lo g un1r1ed2: rilenarae sn a re .lo o , l i m i t 123, ncatamp 4 oatafcass 4 ou tp ut database: a le r t , <db_type>, us?r«<usernan!> pa3 3w=rd“ <pa3svord V c u tp u t aatacasei 100, <dto_typ«>, u9er‫< ־‬uacma&e> paaav:rs‫< ־‬Eaaavord> • lii » * c ta d a ti rercrcr.ee aata. do not * e a itv t£e include C:Snarceceelas31f1eat1on.e0nt10l lac lu d # C; Sac r «c c r »C«r«nc«. co n fi g_| length :25482 lina:6S7________In :541 Co) :22 S*l:0 Figure 1.15: Configuring Snort.coiif File in Notepad++ lrigure 1 i ‫ :כ‬Uonngunng inort.com rile in !Notepad^ ‫1־‬ . ‫־‬ 50. this s te p #6 , add the line o u tp u t dump all logs 111 die a le rts .id s file. 111 ale rt_fa st: a le rts.id s . for Snort to *C 00flelcsnoM :S -conf - N otepad* file £d!t Search Ukw Encoding Language Settings Macro Run PHigns ftmdcvr I o 0 *‫ % * |&־ ^ ₪ ׳‬C 9 c )| » ‫ ו ?״ 931 > 4 8ף‬Wz 2 ‫ן ! ו $ י ו‬ *H «nc< corf ‫ן‬ b.A 4 step te : c on no ure outp ut p lu gin s 515 4 For more in fo rm a tio n , see Snort Manual, C on figu rin g Snort ‫־‬ 517 '*.fi 519 S?0 521 525 524 ‫?׳ »׳‬ C utput Modules 4 u n ifie d : V ;■ccorr.cr.ici cor !coat i n s t a lls 4 o u tp ut u n ifie d 2 : filenam e merged. 100, l i m i t 128, n03ta*p» « p ls _ e ^ n t_ ty p e s , vlan_event_types 4 A d d itio n a l c o n fig u ra tio n fo r s p e c ific types o f in s t a lls 4 c utpu t a lo rt_ u n ifi» d 2 : fila n a a » a n o r c .a le r t, l i m i t 129, r.oxaap 4 cu tp u t lo g un1E1ed2: rilenarae s n o r t.is o , l i m i t 126, r.: ‫ ־ י‬axt m N ote: ’ipvar’s are enabled only with IPv6 support. W ithout IPv6 support, use a regular ’var.’ - -533 534 4 oatafcass 4 c utpu t database: a le r t , <db_type>, uaer-<usemane> pe a3 *:rc‫<־‬fa3sw ord 4 c u tp u t ia ta £3 3e: lo o , <db type>, u3er=<uaemaEe> pa33wcr2=<pa33word> ‫׳‬ 539 540 541 |c-;‫־‬p u t « le r t _ fa 3 t : a le r t s . id s | . 4 metadata refe re nce da ta , do not m odify tcese lin e s inc lu d e C :S no rtecccla 33 1f1 cat1o n.c0 nf1 0 ln c lu d a C :3nQ rt8ccreC arenca.conf l q |hc«nwl U*t fil« ‫׳‬ Itngth: 25511 lin»:657 1 6 ?5: ‫מ‬ Co<:30 S«l:0 Figure 1.16: Configuring Snort.conf File in Notepad++ 51. By default, die C:Snortlog folder is empty, widiout any files 111 it. Go to die C:Snortlog folder, and create a new text file with die name alerts.ids. Ii=yj Frag3 is intended as a replacement for die &ag2 defragmentation module and was designed with the following goals: 1. Faster execution than frag2 with less complex data management. 2. Target-based host modeling anti-evasion techniques. C E H Lab Manual Page 859 52. Ensure diat extension of diat file is .ids. Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  15. 15. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots _ log v Search log C P alerts.ids Favorites ■ ‫ם‬ Desktop Downloads M i Recent places Libraries )= ‫יז‬ ‫״‬ 1 item Figure 1.17: Configuring Snort.conf File in Notepad++ 53. die s n o rt.c o n f tile, find and replace die ip v ar string widi var. By default die string is ipvar, which is not recognized by Snort, so replace it widi die v a r string. 111 N o te: Snort now supports multiple configurations based 011 VLAN Id 01‫ ־‬IP subnet widiui a single instance of Snort. Tins allows administrators to specify multiple snort configuration files and bind each configuration to one 01‫ ־‬more VLANs or subnets radier dian ninning one Snort for each configuration required. Replace m Find Three types o f variables may be defined in Snoit: Replace ‫ש‬ Find in Files | Mark | ■ S Find Next v l |v a r ‫ ־‬Var Replace □ in selection ■ Portvar Replace A|l Replace All in All Opened Documents ■ ipvar I IMatch ra s e @ W rae around Search Mode Direction (•> Normal O u> (§) On losing focus C Extended Op, V, t, V , x ...) O ® Dawn O Always O Regular expression Q L m atches newline 0 Transparency = 0= Figure 1.18: Configuring Snort.conf File in Notepad++ 54. Save die sn o rt.c o n f file. 55. Before running Snort you need to enable detection niles 111 die Snort niles file; for diis lab we have enabled ICMP mle so diat Snort can detect any host discovery ping probes to die system running Snort. 56. Navigate to C :Snortrules and open die icm p -info .ru les file widi Notepad ++. 57. C E H Lab Manual Page 860 Uncom m ent the Line number 4 7 and save and close die file. Ethical Hacking and Countenneasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  16. 16. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots C:5nortrulesicmp info.rules Nofepad♦ E*e Edit Search View Encoding Language SetDngs Macro Run Plugns 0 ■H « ft 1 4m* r!| P c* ft * - ta t ‫ז‬ I > r‫ ,פ |״‬T,[ | ‫ כ‬S i l i f l « > P i— !<■1 H trp+Tfo 1ute« | ­ ‫♦ נ‬alert isrsp $ E N L N T an - $ 0 E NT an cnsj:‫״‬IC E-IN I R P router advertisem EXI R A _ E y > H K _ E y X FC E ent"; 1type:9; rereren‫׳‬29 * a le r t leap 3 # a le r t leap 0 31 * a le r t lc n p 32 * a le r t i=r^> SEXTERNAL_NET any ‫ > ־‬SHOMEKET any $ X R A _ E any - $ O E NT any S IE N 1 N T > H K_ E SEXTERNAL_NET any -> SH0HE_KET any SEXTERNALNET any -> SH0KE_NET any (msg:‫ ־‬ICXP-IKyC IRDP (nsg :'I-X ^-IK F C FUJG (rsg:‫ ״‬ICMP‫ ־‬INF0 PING (osg: ‫ ״‬IS 'P-INTC PING ro u te r s e le c tio n "; ity p e :1 0 ; reference :‫ו‬ *H IX•; lcype :S ; co n te n t : 1 13 12 1 1 1 1 ‫■״‬ 0 BSDtype"; 1 ty p e :8; c o n te n t:‫| ״‬O0 09 OA 0 1 BayR3 R ou ter"; ity p e :8; co n te n t:■ | 01 02 34 # a le r t icnj? SEXTERNAL_NET any -> £H0KE_NET any (nsg:‫ ״‬ICM?-IK7C ?IUG Cisco Type. x " ; ity p e :8 ; co n te n t:"|A B CD 3 * alert re © SE IE N L_N Tan - $ 0 E NT an (m ?:"X X lN rIUG SeOSI.x"; ltype:8; content:"| Q 0 0 0 3 s X R A E y > H K _ E y 3 C P- FO Q 0 0 ‫׳‬ - $H0KE_KET any (nsg:‫־‬irxP-IKFCPING DelpiH-PieLte Windowsltype:8; conien > 3 # alert leap $ X E N L NTa y 5 E T R A_ E n 4 36 * a le r t ic n p SEXTERNAL~NET any -> SH0HE~NET any (msg:‫ ״‬ICHP-INF0 PIHG Flo*pom t2200 o r Network Management Scf‫־‬ 3 ‫ ־‬alert icnp SE T R A E a y - SH K N T a y (x s :‫״‬IC P-IK C P G IP H onitor M X E N LN T n > O E E n a g X 7 IN etM acintosh‫ ;״‬itype:B; c n ■ o t• 3 t alert 1st® $exiernal_net an - Shoke_n an cn3g:1‫״‬cxp F0pibg li2tjx/35‫״‬d d 1ze:8; 1 :1 1 0 1 8 y> ei y -lK ‫3 ;״‬ d 3 7 ; type:8 ♦ a le r t ic n p SEXTERNAL_NET any -> SH0XE_NET any (msg:*ICKP-IK?C PIHG M ic ro s o ft X indovs"; i ty p e :8; c o n te n t:"0 40 I a le r t lea p $EXIERNA1_NET any -> $HOXE_KET any (nsg :‫ ״‬I3 (P ‫ ־‬XKFC POTG network Toolbox 3 Window*‫ ; ״‬l type 8; coi : * a le r t ic n p SEXTERNAL_NET any ‫ > ־‬SH0KE_NET any (msg:‫ ״‬ICMP-INF0 PIHG Pmg-O-HeterWindows"; ity p e :0 ; content: 42 « a le r t ict*> SEXTERNAL~NET any ‫ > ־‬SH0KE~NET any (rasg:‫ ״‬ICKP-IKFC PIHG Pinger Windows"; it y p e : 8; c o n te n t: "Oata 43 * a le r t 1 cnp cexie rn a l_ n e t any ‫ > ־‬Shoke_nei any (cs3 : 1 ‫ ״‬cxp-1 k fo pih c seer windows"; 1 ty p e i8; con t e n t « 1 8 ‫ ״‬a 04 44 • a le r t 1 a 1p SEXTERNAL NET any ‫ > ־‬SHOKE NET any (msg:‫ ״‬ICKP-INF0 PING O racle S o la n s "; ds18e : 8; 1 type«8 ; clas. 45 f a le r t lea p $EXTERNAL_NET any -> $H0XE_KIT any ( n » g :2 ‫ ״‬CXff-IKFC PIHG Window•‫ ; ״‬lc y p e :8 ; co n te n t: ‫ ״‬abcdergfcljk. 9 a le r t !;rap SEXIERNAI_NEI any > SH0KE_KEI any !f» a :*1 a tP -lN fC tra c e ro u te 1 ;‫ ״‬svce: 8 ; t t l i l ; c la a a t ! t t : a t t c n “ a le r t icnp SFXTERXAL NFT any -> SHO _KET any (mag: ‫ ״‬TCMP-IKFC PINO‫ ; ״‬ic o d e :0 ; ity p e :8 ; e la s s ty p - :» ia c - a c tiv 1 | XR » a le r t isno SHOKEJJET any -> CEXTERNAL_NET any ( n a a i- io t f - 1K5C Address mask R « ly "> ic o d c io ; lt v p e u s ; cia®. 49 • a le r t 1 cnp SEXTERNAL_NET any ‫ > ־‬SH0KE_NET any (msg:‫ ״‬ICKP-INF0 Address Maslr Reply undefined code"* 1 eode:>0 50 t a le r t lea p $SXTERKAL_NET any -> $K0XE_KET any ( e * g : 2 ‫(^ ״‬P-Z>:FC Add:««a Ka»k Rvquaat"; lc o d « :0 ; lty p e :1 7 ; cl• 51 ♦ a le r t 1 ‫ סגמ‬SEXIERNAL_NET any ‫$ > ־‬H0KE_NET any (ns3 : ‫ ״‬ICJ4 P‫־‬IN f0 Address Mask Reaucst undetined code‫! ; ״‬code:: 5 « alert 2 S X E N L NT a y- $ O E NT a y (M E T R A ~ E n > H K~ E n gr-ICVP-IKFCAlternate H «t A d o d re‫ ;״״״‬icode:0; itype:6; c f alert isnp «exiernal_net an ‫«>־‬ho e_net an (nsg:1‫״‬c p 1 F Alternate H st A aress u d ed c d ‫ ;״‬ic d y k y x - NC o d n erm o e e • >4 55 <| * a le r t 1 cnp SEXTERNAL_NET any -> 8H0KE_NET any (e1sj:*IC H P ‫ ־‬INF0 Dataarati Conversion E r r o r "; icodesO; 1 ty p e :3 f a le r t lea p fEXTERNAL NET any -> <H0KE NET any (tasg: ‫ ״‬ZCXP-IKFC Satagraa Converalon E rro r undefined code"; i■ v 11 1 > NcinwlUxlfile le g : 17357 lins 123 n th e: Ln:47 Cc4:1 SeJ:0 UMX ANSI IM S Figure 1.19: Configuring Snort.coiif File iti N’otepad+‫־‬ f‫־‬ 58. Now navigate to C:Snort and nght-click folder bin, select die context menu to open it in die command prompt. V a lid a te 59. Type C o n fig uratio ns C m d H e re from sn o rt -iX -A co n so le -c C :S n o rtetcsn o rt.co n f -I C:Snortlog -K and press E n te r to start Snort (replace number; 111 dus lab: X is 1). as cii X with your device index 60. If you enter all the command information c o rre c tly , you receive a g rac efu l e x it as shown 111 the following figure. y ’ To run Snort as a daemon, add -D switch to any combination. Notice that if you want to be able to restart Snort by sending a S IG H U P signal to die daemon, specify the full path to die Snort binary when you start it, for example: /usr/local/bin/snort -d 192.168.1.0/24 -l /var/log/snordogs -c /usr/local/etc/snort.conf s-D -11 61. If you receive a fa ta l error, you should first ve rify diat you have typed all modifications correcdy into the s n o rt.c o n f tile and then search dirough the tile for e n trie s matching your fatal error message. 62. If you receive an error stating “ Could n o t c r e a te run the command prompt as an A d m in is trato r. th e re g is try ke y ,” then Administrator: C:Windowssystem32cmd.exe C:SnortbirOsnort -i4 -A console -c C:Snortetcsnort.conf -1 C:Sno1 *tlog -K ascii Figure 2.18: Snort Successfully Validated Configuration W indow tasks S ta rt Snort C E H Lab Manual Page 861 63. Start Snort in IDS mode, 111 the command prompt type and dien press Enter. snort C :S n o rtetcsn o rt.co n f - I C:Snortlog - i 2 Ethical Hacking and Countenneasures Copynght © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  17. 17. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Figure 2.19: Start Snort in ID S Mode Command 64. Snort starts rumung in IDS mode. It first initializes output plug-ins, preprocessors, plug-ins, load dynamic preprocessors libranes, nile chains of Snort, and dien logs all signatures. GO C:Snortetcsnort.conf is the location o f the configuration file 65. After initializing interface and logged signauires, Snort starts and waits for an attack and tngger alert when attacks occur on the machine. - * > Sn o rt T <*- Uersion 2.9.3.1-UIN32 G E <Build 40> R B Martin R y oesch 8 The Snort Team http://www.snort.org/snort/snort-t r : Copyright < > 1998-2012 Sourcefire, Inc., et al. C Using P R version: 8.10 2010-06-25 CE Using ZLIB version: 1.2.3 Rules Engine: S _ N R _ E E T N N I H Uersion 1.16 <Build 18> F S O T D T C IO _E G E F S P Preprocessor Object S _S LP Uersion 1.1 <Build 4> F S H Uersion1.1 <Build 3> Preprocessor Object S _ S F M P Uersion 1.1 <Build 9> Preprocessor Object S .S T Preprocessor Object SF_SIP Uersion1.1 <Build 1> F.S F Uersion1.1 <Build 1> Preprocessor Object S D F E U A IO Preprocessor Object S _R P T T N Uersion 1.1 <Build 1> F P P Uersion1.0 <Build 1> Preprocessor Object S _ O FT0 B S Preprocessor Object S _ 1 D U Uersion 1.1 <Build 1> F A Preprocessor Object S _IM P Uersion1.0 <Build 1> F G P Uersion1.1 <Build 1> Preprocessor Object S _ T F T T LN T Preprocessor Object S JF P E E Uersion 1.2 <Build 13> F D S Uersion1.1 <Build 4> Preprocessor Object S _ N FD P Preprocessor Object S _ N 3 Uersion 1.1 <Build 1> FP E P 2 Preprocessor Object S _ C R C Uersion 1.0 <Build 3> C m om encing packet processing <pid=6664> ■ Option: -l to log the output to C:Snortlog folder ‫י‬ Option: -i 2 to specify die interface m Run Snort as a Daemon syntax: /usr/local/bin/snort -d -h 192.168.1.0/24 1 /var/log/snortlogs -c /usr/local/etc/snort.conf s- D . £01 When Snort is run as a Daemon, the daemon creates a P ID file in the log directory. Figure 1.20: Initializing Snort Rule Chains Window 66 . 67. Leave die Snort command prompt running. 68 . ^ TASK 6 A tta c k H o st M a c h in e After initializing the interface and logged signatures. Snort starts and waits for an attack and trigger alert when attacks occur on the macliuie. Attack your own machine and check whedier Snort detects it or not. 69. Launch your Windows 8 Virtual Macliuie (A tta c k e r M achin e). 70. Open die command prompt and type ping X X X .X X X .X X X .X X X -t from die A tta c k e r M a c h in e (XXX.XXX.XXX.XX is your Windows Server 2012 IP address;. 71. Go to W in d o w s S e rv e r 2 0 1 2 , open die Snort command prompt, and press C trl+ C to sto p Snort. Snort exits. 72. Now go to die C :S n o rtlo g 10 .0 .0 .12 folder and open the text file. ICM P_EC HO .ids m Note that to view the snort log file, always stop snort and dien open snort log file. C E H Lab Manual Page 862 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  18. 18. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots ICMP.ECHO.idT- Notepad File Edit Format View ! ‫ ' ’ם‬x ‫־‬ Help |[* * ] ICMP-INFO PING [ * * ] 11/14-12:24:17.131365 10.0.0.12 -> 10.0.0.10 IC P TTL:128 T S x0 ID M O :0 :31479 IpLen:20 D m e :6 g Ln 0 Type:8 C ode:0 ID:1 S eq:198 EH CO [**] IC P F P G [**] H -IN O IN 11/14-12:24:18.146991 10.0.0.12 -> 10.0.0.10 IC P T L:128 T S ID:31 8 IpLen:20 D m e :6 M T O :0x0 40 g Ln 0 Type:8 C ode:0 ID:1 S eq:199 EH CO [••] IC P F P G [**] M -IN O IN 11/14-12:24:19.162664 10.0.0.12 -> 10.0.0.10 IC P T L:128 T S ID:3 4 1 IpLen:20 D m e :6 M T O :0x0 18 g Ln 0 Type:8 C ode:0 ID:1 S eq:200 EH CO [••] IC P F P G [**] M -IN O IN 11/14-12:24:20.178236 10.0.0.12 -> 10.0.0.10 IC P TTL:1 8 T S ID M 2 O :0x0 :31482 IpLen:20 D m e :6 g Ln 0 Type:8 C ode:0 ID:1 S eq:201 EH CO [**] IC P F P G [**] M -IN O IN 11/14-12:24:21.193933 10.0.0.12 -> 10.0.0.10 IC P T L:128 T S X 0 ID:31 8 IpLen:20 D m e :6 M T O :0 43 g Ln 0 Type:8 C ode:0 ID:1 S eq:202 EH CO [**] IC P F P G [**] M -IN O IN 11/14-12:24:22.209548 10.0.0.12 -> 10.0.0.10 IC P T L:128 T S ID:31 4 IpLen:20 D m e :6 M T O :0x0 48 g Ln 0 Type:8 C ode:0 ID:1 S eq:203 EH CO Figure 1.21: Snort Alertsids Window Listing Snort Alerts 73. You see that all the log entries are saved 111 die ICM P_EC HO .ids hie. Tins means that your Snort is working correctly to trigger alert when attacks occur 011 your machine. L a b A n a ly s is Analyze and document die results related to diis lab exercise. Give your opinion 011 your target’s security posture and exposure. PLE A SE TA LK Tool/Utility Snort TO Y O U R IN S T R U C T O R IF YO U R E L A T E D TO T H IS LAB. H A VE Q U E ST IO N S Information Collected/Objectives Achieved Output: victim machine log are capuired Q u e s t io n s 1. Determine and analyze die process to identify and monitor network ports after intnision detection. C E H Lab Manual Page 863 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  19. 19. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 2. Evaluate how you process Snort logs to generate reports. Internet Connection Required □ Yes Platform Supported 0 Classroom C E H Lab Manual Page 864 0 !Labs Ethical Hacking and Countermeasures Copyright © by EC-Council A ll Rights Reserved. Reproduction is Stricdy Prohibited.
  20. 20. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Lab L o g g i n g S n o r t Alerts to K i w i S y s l o g S e r v e r S n o / t is a n o p e n s o u rc e n e tw o rk in tr u s io n p r e v e n tio n a n d d e te c tio n s y s te m ( ID S /IP S ) . I CON ___ KEY in fo rm a tio n T est your k n o w le d g e W e b e x e rc is e m L a b S c e n a r io V a lu a b le W o r k b o o k r e v ie w Increased connectivity and the use ot the Internet have exposed organizations to subversion, thereby necessitating the use ot mtnision detection systems to protect information systems and communication networks from malicious attacks and unauthorized access. An intrusion detection system (IDS) is a security system diat monitors computer systems and network traffic, analyzes that traffic to identity possible security breaches, and raises alerts. A11 IDS tnggers thousands of alerts per day, malting it difficult for human users to analyze them and take appropriate actions. It is important to reduce the redundancy of alerts, uitelligendy integrate and correlate diem, and present lugh-level view of the detected security issues to the administrator. A11 IDS is used to inspect data for malicious 01‫ ־‬anomalous activities and detect attacks 01‫־‬unaudionzed use of system, networks, and related resources. 111 order to become an expert penetration tester and security administrator, you must possess sound knowledge ot network intrusion prevention system (IPSes), IDSes, identify network malicious activity, and log information, stop, or block malicious network activity. L a b O b je c tiv e s H Too ls d e m o n s tra te d in th is lab a re The objective of tins lab is to help smdents learn and understand IPSes and IDSes. 111 tins lab, you need to: lo c a te d a t D:CEH- ■ Install Snort and configure snort.conf file Too lsC E H v8 ■ Validate configuration settings M o du le 17 Evading IDS, ■ Perform an attack 011 the Host Machine F ire w a lls , and H o n eyp o ts ■ Perform an intrusion detection ■ Attempt to stop detected possible incidents C E H Lab Manual Page 865 Ethical Hacking and Countenneasures Copyright © by EC-Comicil All Rights Reserved. Reproduction is Stricdy Prohibited.
  21. 21. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots L a b E n v ir o n m e n t To carry-out tins lab, you need: ■ A computer running Windows Server 2012 as a host machine ■ Windows 8 running on virtual machine as an attacker machine ■ WinPcap drivers installed on die host machine £ 7 You can also download K iw i Syslog Server from http://www.kiwisyslog.co m ■ Kiwi Svslog Server installed on die host machine ■ Admnnstrative privileges to configure settings and nin tools L a b D u r a t io n Tune: 10 Minutes O v e r v ie w o f o f IP S e s a n d ID S e s An intrusion detection system (IDS) is a device or s o ftw a re application diat monitors network and/or system activities for m a lic io u s activities or polio,’ violations and produces reports to a management station. Intrusion detection and prevention systems (IDPS) are primarily tocused on identifying possible incid en ts, logging information about them, attempting to stop diem, and reporting diem to s e c u rity administrators. S TASK 1 Log S nort A lerts to Syslog S e rv e r L a b T a s k s 1. Navigate to D :CEH -ToolsC EHv8 M o du le 17 Evading IDS, F ire w a lls , and H o n eyp o tsln tru sio n D e te c tio n T o o lsK iw i Syslog S e rv e r K iw i_ S ys lo g _S erve r_ 9.3.4.E va l.se tu p .ex e and install double click on K iw i Syslog S erve r on die Windows Server 2012 host machine. 2. The L ic en se A g re e m e n t window appears, Click I A g ree. Figure 2.1: kiwi syslog server installation C E H Lab Manual Page 866 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  22. 22. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 3. 111 die wizard, check the check box and click N e x t >. Choose O p e ra tin g M o de S e rv e r as an A p p lic a tio n In s ta ll K iw i Syslog ‫ז °ן ־‬ Kiwi Syslog Server 9.3.4 Installer x C h o o s e O p e ratin g M ode so larw ind s ‫־׳‬ The program can be run as a Service or Application O In stall Kiwi S yslog S e iv e i a s a S e iv ic e This option installs Kiwi Syslog Server as a Windows service, alowing the program to run without the need for a user to logn to Windows. This option also retails the Kiwi Syslog Server Manager which is used to control the service. |(* In stall Kiwi S yslog S e iv e r a s a n A pplication | This op bon retails Kiwi Syslog Server as a typical Windows appkcabon, requnng a user to login to Windows before r i m n g the application. & Too ls d e m o n s tra te d in th is lab a re SolarWinds, Inc. lo c a te d a t D:CEH■ Too lsC E H v8 Figure 22: K rai Syslog seiver installation M o du le 17 Evading IDS, F ire w a lls , and 4. die In s ta ll K iw i Syslog selected and click N e x t >. 111 W eb A c c e s s wizard, uncheck die option H o n eyp o ts Kiwi Syslog Server 9.3.4 Installer X Install Kiwi S yslog W eb A c c e s s solarw ind s Remote viewing, filtering and highlighting of Syslog events... I I In stall Kiwi S yslog W e b A c c e s s V C re a te a n ew W e b A c c e s s logging ■ule in Kiwi S yslog S e iv e i Kiwi Syslog Web Access can be enabled in the licensed or evaluation versions of Kiwi Syslog Server. SolarWinds, Inc. Figure 23: kiwi syslog seiver 5. Leave die settings as their defaults in the click N e x t >. C E H Lab Manual Page 867 Choose C o m p o nents wizard and Ethical Hacking and Countemieasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  23. 23. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Kiwi Syslog Server 9.3.4 Installer solarwinds I ‫ ־־‬I C h o o s e C o m p o n e n ts Choose which features of Kiwi Syslog Server 9 .3.4 you install. a ant to This wll install Kiwi Syslog Server version 9.3.4 Select the type o f install: Normal Or, select the optional components you wish to instal: Program files (required) 0 Shortcuts apply to all users 0 Add Start menu shortcut b^J Add Desktop shortcut p i Add QuickLaunch shortcut O Add Start-up shortcut Space requred: 89.5MB Position your mouse over a component to see its description. V Description SolarWinds, I n c .----------------------------------------------------------------------------------------------------------< Back | Next > | [ Cancel | Figure 2.4: adding components 6. die C hoose In s ta ll L o c atio n wizard, leave die settings as dieir defaults and click In s ta ll to continue. 111 Kiwi Syslog Server 9.3.4 Installer C h o o s e Install L ocation so larw ind s ‫׳׳‬ Choose the folder n whkh to n s ta l Kiwi Syslog Server 9.3.4 . Setup w l n s ta l Kiwi Syslog Server 9.3.4 n the folowng folder. To n s ta l in a different folder, dick Browse and select another folder, dick Instal to start the installation. Destination Folder Space requred: 89.5MB Space available: 50.1GB SolarWinds, Inc. 1 Figure 2.5: Give destination folder 7. Click Finish to complete the installation. You should see a test message appear, which indicates K iw i is working. C E H Lab Manual Page 868 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  24. 24. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Kiwi Syslog Server 9.3.4 Installer [_“ I 1‫ם‬ x Completing the Kiwi Syslog S erver 9.3.4 S e tu p Wizard Kiwi Syslog Server 9 .3.4 has been installed on your computer. Click Finish to dose this wizard. @ Run Kiwi Syslog Server 9.3.4 Visit the SotorWmds website < Back | Ftnoh | Cancel j Figure 2.6: kiwi syslog server finish window 8. Click O K ill the K iw i Syslog S e rv e r - D e fa u lt S e ttin g s A p p lied Kiwi Syslog Server - Default settings applied dialog box. T U Thank you for choosing Kiwi Syslog Server. This is the first time the program has been run on this machine. The following default 'Action' settings have been applied... ’ Display all messages * Log all messages to file: SyslogCatchAll.txt These settings can be changed from the File | Setup menu. Happy Syslogging... OK Figure 2.7: Default setting applied window 9. To launch die K iw i Syslog S e rv e r C onsole move your mouse cursor to lower-left corner of your desktop and click S tart. Q j Yiiw Syslog Server is i a free syslog server for Windows. logs. Windows. It receives logs, displays and forwards syslog messages from hosts such as routers, switches, U N IX hosts and other syslog-enabled devices. C E H Lab Manual Page 869 Figure 2.8: starting menu in windows server 2012 10. 111 die S ta rt menu apps click r r K iw i Syslog S e rv e r C onsole J J to launch die app Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  25. 25. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots M jiB o * '‫׳״יי״‬ * ta g n le Cio o hm © • x ' Cmad om n Nt pd oe a• Jnmtdl s^r1091 R a 5 C o Pntrol ae n l Eyxf /ke V O pr M wY )p Mng! aae ■ ■ N!a s eu wbC n e lie t h S i5 1 *9 < k V KKl Package I C -‫־‬T *‫׳‬ 1 Figure 2.9: click kkvi syslog server application 11. Configure Syslog alerts 111 die s n o rt.c o n f file. 12. To configure Syslog (press Ctrl+C). a le rts , first exit from die Snort command prompt 13. Go to C :S n ortetc and open die s n o rt.c o n f file widi N o tep ad + +. 14. Scroll down to S te p #6: C o n fig ure o u tp u t plugins, in the syslog section (Line 527), remove # and modify die line to o u tp u t alert_syslog: h o s t= 1 2 7 .0 .0 .1 :5 1 4 , LOG _AUTH LOG ALERT. Snort.conf before modification Syslog CSn0rt«csrx>ftc<y»f Notewd■r [< Seaw yicw tvcMq H *t ti fectng* M arre Run Pluglni W indow J «‫ ׳‬mc . >a >‫■׳‬r 3c •‫ > יו‬q 7!11‫■ @ י ן•ן‬b wa a 11 j5 w j 3* t Step te: Coaflgrare output plugins * Additional configuration fo r s!:eclflc types or In sta lls * output alert_unlfled2: filename s n o rt.a le rt. U n it 128, n09ta*p * output loc_3n1 r1ea2: niecaae snort. I 09, lu u t 128, rostairp flog; LO AJIg 100 ALERT| O I output log.topdja m The reason why you have to run snortstart.bat batch file as an administrator is that, in your current configuration, you need to maintain rights to not only output your alerts to K iw i, but to write them to a log file. C E H Lab Manual Page 870 I output aatarase: I output aatanse: »t-< B03tnaa1e> Figiue 2.10: Snortconfig before modification Snort.conf after modification Syslog Ethical Hacking and Countemieasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  26. 26. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots C:Sn0rtetcVsrxyt cof't Notepad-• Filf fdt Sea rch V iew f‫׳‬w eSrf»g .‫^ ץ׳ל.1 ן־י‬flnqi Mam Run Pluqin W do in w 13H • » ‫* | & . .־‬ fe| 3 c • ‫־ -ן‬g 3 ‫יי ) | י - י‬Cv 3 ‫)§[) י‬ S iC5 preprocessor reputation: < 013 **#**#**«**«#*»*#*«##*«#*«*#•*#*«****#»**#•*#»*#** pi4 # Step *€: Coaflarare output plugins pis * For *ore information, see Snort Manual, Conflouring Snore - Output Modules 5 l output uniiieai: £ile:;«*e se;aec.ica, lu u t 128. nostanp, npls_e5 ‫ ז‬Additional configuration for specific types 0C installs 1 output alert_unlfled2: filename snort.alert. U n it 128, nostajip » output log_unlfled?: fllenaae snort.log, lljtlt 128, nostaxp » database I output database! alert, <db_typ«>, users<usernane> pa8avford=<pa»sv0rd> test dbnaa!e-< r.a1*e> h0st*< S10atnam e3 I output databasei log. <db_typ«>. usera<usernane> password»<passv‫׳‬ord> test d as> naae> bo»t*<hostnaae> bn es< U . ‫׳‬ a M:l» .li C Figure 2.11: Snortconfig after configuration 15. S av e die tile and close it. 16. Open K iw i Syslog S e rv e r Syslog Server alert logs. File Edit Vic* ' and press C trl+T. Tlus is to test Kiwi Kiwi Syslog Server (14 Day evaluation - Version 93) R* 1 C onsole ■‫ ׳‬E 1 1-1‫״‬ - ' Hdp it © H Day* luttin wsluslion Di.pl., 00 |Drf‫״‬Jl] Dale Tun* P-o‫״‬ly lla*ln«m1 14 2012 1621 30 Lwal7.D»U1g 127.0.01 Kiwi Sytloy S*1vv1 •T*t< latfTtayw nuaibei 0001 1 1 1 J 1 0% 1MPH 0 1 2 11142012 61 1 Figure 2.12: Kiw i Syslog Service Manager window 17. Leave die Kiwi Syslog Server Console. Do not close die window. 18. Now open a command prompt with Snort and type diis command: sn o rt - iX - A co n so le - c C :S n o rte tcsn o rt.c o n f - I C:Snortlog - K a s c ii - s and press E n te r (here X is index number of vour Ediernet card) . C E H Lab Manual Page 871 Etliical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  27. 27. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Administrator: C:Windowssystem32cmd.exe _ □ x ua K iw i Syslog Server filtering options: ■ Filter on IP address, hostname, or message text ■ Filter out unwanted host messages or take a different logging action depending on the host name Figure 2.13: Snort Alerts-ids Window Listing Snort Alerts ■ Perform an action when a message contains specific keywords. 19. Open a command prompt 111 your Windows 8 virtual machine and type tins command: ping 1 0 .0 .0 .1 0 (IP address of your host machine where Kiwi Svslog Server Console is running). 20. Go to K iw i Syslog S e rv ic e M a n a g e r window (diat is already open) and observe die triggered alert logs. n 1 x Kiwi Syslog Server (14 Day evaluation - Ve'sion 93) File Edit -‫£ ׳‬ 1 I 1€ ‫י‬ ' Help A 88 D.tpk* 00 (Dvfdull) l,mr Dale P. m.4. 11-14-2012 184012 Auth Ale.! 1 14 ?01? 104011 AuHt Air.1 1 II 1 2012 18 4010 Auth Alcit 4 11-14-201? 18 40 09 Auth Alrll 1 14 ?01? 104*00 AuHt Alr.l 1 11-14-2012 184007 Auth Ale11 11-14-201? 18 40 nc Auth Alr.l 1 14 ?012 10.40.Ub Auth Alcit 1 11-14-2012 18:4004 Auth Aleu 11-14201? 18 40 03 Auth Alr.l 11-14 2012 18:4002 Auth Alcit 11-14-2012 18.40.01 Auth Ale.l 11-14-201? 18 40 (1 AulhAlril 0 1 14 2012 18:39:59 Auth Alcit 1 11-14-701? 1839 58 Auth Alr.l 1 14 201? 103*57 Aulh Alr.l 1 1 14 2012 18:3958 Auth Alcit 1 1 Days left in ev‫־‬Dluotun 4 llo1ln1 ‫׳‬rw Menage 127.0.01 Nvv 14 18 40.12 W1N-2N9SIOSGIEN w.ort |1 384 6| ICMP INF: PING |CU«ti»calion. Mbc activitf) [Piiuiily. 3] (ICMP) 10.0.0.12 1000.10 1 (1 1 .n..ly- 3] (ICHP) 11II 111? 1 127 001 Nnv 14 114 11 WIN 2N9!iTOSGI( N mart |1 304 C| II Ml' INI 1 I1NG [ClauArahor Mur. nohvilyl U1‫־‬ 10.0.0.10 4 ct 2 127.0.0 1 Nov 1 18:40:10 WIN 2N9STOSGIEN mort |1 384 6| ICMP INFO PING (ClMstficd'ion: M.sc 0 1vity| (Piioiily: 3) (ICHP) 10.0.0 1 10.0.0.10 12700 1 Nuv 14 18 40 O WIN ?NSS10SGIFN tnurt |1 384 6| ICMP INFO PING (n«nii.:4l<ar• Mac adivi(•) (Piimily 3] (ICMP) 10 0 0 1? ') 10 0 n 1 n 127 001 Nov 14 11 4 1 O WIN 2N9!:TOSUK N •no* |1 304 C| 1 Ml‫־‬INI II I1NG (Clou*ration Mur. nr.hvityl [1'im 1 1 ■ il ( trijr 3) IIIMPI 10 0 111? I0.0.U.IU 127.0.0.1 Nov 1 18:40:07 WIN 2N9STOSGIEN tnort |1 384 6| ICMP4NF0 PING (ClMtWcatiwi: Hite activity (Plioiity: 3] (ICHP) 10.0.0 1 4 2 10.0.0.10 | 1270 0 1 Nuv 14 10 40 on WIN-?N9r.1nSG1rN tnatl |1 384 G IfMP INm PING (CUsifirolian Mbc activity) [Piitxily: 3] IICMP) 10 0 01? 1000.10 127.0.0 1 Nov 1 10:40:0b WIN 2N91>1USGILN *noit: |l. J84:b| ILMI‫־‬INI U I1NG (Llasiiication: Hue nctivitvl H'noiity: 3 (ICHP) 10.0.0.12 4 1 10.0.0.10 4 1 127.0.0.1 Nov 1 18:40:04 WIN-2N9STOSGIEN tnort |1:384 6| ICMP-INF0 PING (Clact«cation: Hite activity [Plioiity: 3 {ICHP) 10.0.0.12 10.0.0.10 12700 1 Nov 14 10 40 01 WIN-2N9r.TOSGIFN mart |1 384 C| ICMP-INFO PING [Claxiilicatian Mbc activity] [Pliaiity: 3] (ICHP) 10 0 01? 10 00.10 127.0.0.1 Nov 1 18:40:02 WIN 2N9S1USGIEN tnort: |l:384:6| ICMP INFO PING [Lla**41cat10n: Mac actovitrl [Pnonty: 3] (ICHP) 10.0.0.12 4 10.0.0.10 127.0.0.1 Nov 14 18.40:01 WIN-2N9STOSGIEN tr.ort. [1.384.6] ICMP-INF0 PING [Cla*t«cation. Mbc activity] [Piioiily: 3) (ICHP) 10.0.0.12 10 00.10 127 0.01 Nov 14 18 40:00 WIN-2N9STOSGIEN snort [1 384 6j ICMP-INFO PIHG IClasirtcahon Mbc activity! [Piioiily: 3j ilCHP110 0 0 12 10 0 0.10 127.0.0.1 Nov 1 18:39:53 WIN 2N9510SGIEN snort |1:384:61 ICMP INFU PING [Clat*Scati«n: Mnc acbvitrl [Prioiity: 3) (ICHP) 10.0.0.12 4 10.0.0.10 1270 0 1 Nov 14 18 39:58 WIN-7N9STC1SGIFN tnort [1 384 6| ICMP-INFO PING [CLmificalian Mbc activity] [Plioiity: 3] (ICMP) 10 0 012 1000.10 127 001 Nov 14 10•39:57 WIN 2N9S10SGICN *nort |1 304 K| ICMP INFO PIHG ICUmrfirafiorv Mur. activityl [Pnoiitjr 3] IICMP110 0 0 12 10.0.0.10 127.0.0.1 Nov 1 18:39:56 WIN 2N9STOSGIEN *nort [1:384:6| ICMP INFO PING [□***ificalior: Mbc activilrl [Plioiity: 3] (ICMP) 10.0.0.12 4 fsiw5/jlooWebAcc«5 ■ m oled ‫־‬ol 100* OMFH 1 :4 1 142D 80 1 12 J * II 1 j | Figure 2.14: Kiw i Syslog Service Manager widi Snort Logs 21. 111 K iw i Syslog, you see the Snort alerts outputs listed 111 Kiwi Syslog Service Manager. 22. You have successfully output Snort Alerts to two sources. L a b A n a ly s is Analyze and document die results related to diis lab exercise. Give your opinion on your target’s security posture and exposure. C E H Lab Manual Page 872 Ethical Hacking and Countenneasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  28. 28. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots PLE A SE TA LK TO Tool/U tility Kiwi Syslog Server Y O U R IN S T R U C T O R IF Y O U R E L A T E D TO T H IS LAB. H A V E Q U E ST IO N S Information Collected/Objectives Achieved Output: The Snort alerts outputs listed 111 Kiwi Syslog Service Manager. Q u e s t io n s 1. Evaluate how you can capture a memory dump to confirm a leak using Kiwi Syslog Server. 2. Determine how you can move Kiwi Syslog Daemon to another machine. 3. Each Syslog message includes a priority value at die beginning of the text. Evaluate die priority of each Kiwi Syslog message and on what basis messages are prioritized. Internet Connection Required □ Yes 0 No Platform Supported 0 Classroom C E H Lab Manual Page 873 0 !Labs Ethical Hacking and Countermeasures Copyright © by EC-Council A ll Rights Reserved. Reproduction is Strictly Prohibited.
  29. 29. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 3 D e t e c t i n g U s i n g Intruders a n d W o r m s K F S e n s o r H o n e y p o t I D S K F S e n s o r is a W in d o w s b a s e d h o n e y p o t In tr u s io n D e te c tio n S y s te m ( ID S ) . I C ON KEY l~ V a lu a b le ^/ in fo rm a tio n T est your k n o w le d g e mm W e b e x e rc is e ca W o r k b o o k r e v ie w L a b S c e n a r io Intrusion detection systems are designed to search network activity (we are considering both host and network IDS detection) for evidence ot malicious abuse. When an IDS algontlmi “detects” some sort of activity and the activity is not malicious or suspicious, tliis detection is known as a false positive. It is important to realize diat from the IDS’s perspective, it is not doing anything incorrect. Its algoridim is not making a mistake. The algontlmi is just not perfect. IDS designers make many assumptions about how to detect network attacks. A11 example assumption could be to look for extremely long URLs. Typically, a URL may be onlv 500 bytes long. Telling an IDS to look for URLs longer dian 2000 bytes may indicate a denial of service attack. A false positive could result from some complex e-commerce web sites that store a wide variety of information 111 the URL and exceed 2000 bvtes. 111 order to become an expert penetration tester and security administrator, you must possess sound knowledge of network intrusion prevention systems (IPSes), intrusion detection systems (IDSes), identity network malicious activity and log information, and stop or block malicious network activity. L a b O b je c tiv e s H Too ls d e m o n s tra te d in th is lab a re lo c a te d a t D:CEHToo lsC E H v8 M o du le 17 The objective of tins lab is to make students learn and understand IPSes and IDSes. 111 tins lab, you need to: ■ Detect hackers and worms 111 a network ■ Provide network security Evading IDS, F ire w a lls , and L a b E n v ir o n m e n t H o n eyp o ts To carry-out tins lab, you need: C E H Lab Manual Page 874 Ethical Hacking and Countenneasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  30. 30. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots ■ KF S en sor located at D :CEH -ToolsC EHv8 M o du le 17 E vading IDS, F ire w a lls , and H o n eyp o tsH o n eyp o t T oo lsK F S en so r ■ Install KF Sensor 111 W in d o w s ■ ^__ You can also download KFSensor from http://www.keyfocus.net M eg aP in g 8 located at D:CEH -ToolsC EHv8 M o du le 0 3 S can ning N e tw o rk s S c a n n in g T oo lsM eg aP ing ■ Install Mega ping 111 W in d ow s S e rv e r 2 0 1 2 ■ It vou have decided to download latest of version ol these tools, then screen shots would be differ ■ Administrative privileges to configure settings and run tools L a b D u r a t io n Time: 10 Minutes O v e r v ie w o f IP S e s a n d ID S e s An intrusion prevention system (IPS) is a n e tw o r k s e c u rity appliance that m o n ito rs network and system activities tor m a lic io u s activity. The main functions ot IPSes are to id e n tify malicious activity, log re la te d in fo rm a tio n , attempt to b lo c k /s to p activity, and report activity. An IDS is a software device or application that m o n ito rs network and/or system activities for m a lic io u s activities or p o lic y v io la tio n s and delivers re p o rts to a Management Station. It performs intrusion detection and attempts to s to p detected possible in c id e n ts . ^ TASK 1 C o nfigure K F S en so r L a b T a s k s 1. Launch W in d o w s 8 virtual machine and follow the wizard-driven installation steps to install KFSensor. 2. After installation it will prompt to reboot die system. R ebo o t the system. 3. C E H Lab Manual Page 875 111 Windows 8 launch KFSensor. To Launch KFSensor move your mouse cursor to the lower-left corner of your desktop and click S tart. Ethical Hacking and Countermeasures Copyright © by EC-Council A ll Rights Reserved. Reproduction is Strictly Prohibited.
  31. 31. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots u ►.'crla € C*‫׳‬e~s Windows 8 Release Previev. Evaluation copy. Build WOO , = ‫־‬ ____ m ‫יי‬ 1 «. . F IG U R E 3.1: KFSensor Window with Setup Wizard m To set up common ports KFSensor lias a set of pre-defined listen definitions. They are: m o 4. In die S ta rt menu apps, right click die K F S en so r app, and click Run A d m in is tra to r at die bottom. as ■ Windows Workstation ■ Windows Server Admin S ta rt ^ ■ Windows Internet Services ■ Windows Applications m m ■ Linux (services not usually in Windows) Vriro 1 1 I ® m‫יז‬ ‫ל׳‬ & H Internet F«pfcvr‫׳‬ @ ® a Store services Command Prompt KFSensor FI m % VV » as; ® o Mozilla Firefox W eather Calfrdar Google Chrome Cam ara * Trojans and worms M essaging p (S) edm inh*r«t© r tasoon F IG U R E 3.2: KFSensor Window with Setup Wizard 5. At die first-time launch of die K F S en so r S e t C E H Lab Manual Page 876 Up W izard , click N e xt. Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  32. 32. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots K Sn o P fe s n l - Ea a nT l F e s r ro s io a v lu tio ria File View Scenario Signatures Settings Help_______________________________________ i l ?t!l U -L a , kfsensor - iocalhos Visitor z ta tcp q^ c T ^ *ic dC c g )atagram.. j S 25 SMTP. ! ..__ Tlie Set up Wizard is used to perform the initial configuration o f KFSensor. I j. J I L § 53 DNS 63 DHCP SO IIS )atagram.. WIN-ULY358K )atagram.. WIN-D39MR5J )atagram.. WIN-LXQN3W You m ight like to read the rrenual at this port to team how KFSenso‫־‬works and the concepts behind t. 2 FTP 1 WindowsS The KFSensor Set Up Wizard will take you through a number of steps to Donfigure you systen. All of these can configurations can be modfied later using the menj option. )atagram.. WIN-MSSELG )atagram.. WIN-2N9STO? POP3 110 )atagram.. WIN-2N9STO? )atagram.. WIN-ULY358K )atagram.. Windows^ )atagram.. WINDOWS8 , g 119 NNTP ‫־‬ M i RPC 1 35 g 139 NET Se n the options in th& Set Up Wizard. Wizard Heb LDAP 339 ^ HTTPS 443 $ i | J4. 5-NB. -St< T i 593 CIS jjj 1028 MS Cl! 5 1080 SOCKi 3( 1433 SQL S < g 2234 Direct! j § 3128 IIS Pro g 3268 Global Calal Ser/en Status Visitors: 0 F IG U R E 3.3: KFSensor main Window 6. Check all die port c la s s e s to include and click N e xt. Set Up Wizard - Port Classes Port classes to include: /j Windows Workstation @ Windows Applications @ Windows Server @ Windows Internet Services 0 Linux (services not usually in Windows) @ Trojans and woims KFSensor can detect irrtiusions on many many different ports and simulate different types of services. m Domain Name is tlie domain name used to identify the server to a visitor. It is used in several Sim Servers. These ports are grouped by class. Checked classes will be added to the scenario. Unchecked classes will be removed the scenario. <Back Wizard Help Next > Cancel F IG U R E 3.4: KFSensor Window with Setup Wizard 7. Live die domain name Held as default and click N ext. C E H Lab Manual Page 877 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  33. 33. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Set Up Wizard - Domain D Domain Name: [networksfonj.com| This is the domain name used to identify the server to a visitor. This could be the real domain name of the machine or a fictious one. If you pick a fictious one. try not to use a real domain belonging somebody else. e=yi KFSensor can send alerts by email. The settings in the wizard are the minimum needed to enable this feature. Wizard Help <Back | Next > Cancel F IG U R E 3.5: KFSensor Window with Setup Wizard It you want to send K F S en so r a le rts by email and then specify die email address details and click N e xt. Set Up Wizard - EMail Alerts systems service is a special type o f application that Windows runs in the background and is similar in concept to a U N IX daemon. Send to: [I Send from : If you want KFSensor to send alerts by email then fill in the email address details Wizard Help <Back Next > Cancel F IG U R E 3.6: KFSensor Window with Setup Wizard-email alerts 9. Choose options for D enial m The KFSensor Server becomes independent o f the logged on user, so the user can log o ff and another person can log on without affecting the server. C E H Lab Manual Page 878 o f S ervice . Port a c tiv ity . Proxy Em u lation , N e tw o rk Pro to co l A n a ly ze r and and click N e xt. Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  34. 34. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Set Up Wizard - Options D Denial Of Service Options Cautious v Controls how many events are recorded before the server locks up Port Activity 1 Hour v How long a port should indicate activity after after an event Proxy Emulation Allow banner grabs and loop backs v Controls if KFSensor is allowed to make lim external connections ited Network Protocol Analyzer !Enable packet dump files j v Dump files are useful for detailed analysis but take up a lot of disk space Wizard Help m The KFSensor M onitor is a module that provides the user interface to the KFSensor system. W ith it you can configure the KFSensor Server and examine die events that it generates. <Back Next > Cancel . F IG U R E 3.7: KFSensor Window with Setup Wizard-options 10. Check die In s tall as sy s te m s e rv ic e opdon and click N e xt. Set Up Wizard - Systems Service [v ] Install as systems service A systems service is a special type of application that Windows runs in the background and is similar in concept to a UNIX daemon The KFSensor Server becomes independent of the logged on user, so you can log off and another person can log on without affecting the server The KFSensor Server can be configured to start automatically when the systems starts, even before you log on. You must be logged in a the Administratorto install a systems service Wizard Help m The Ports View is displayed on the left panel o f the main window. It comprises o f a tree structure that displays the name and status o f the KFSensor Server and the ports on which it is listening. C E H Lab Manual Page 879 <Back Cancel F IG U R E 3.8: KFSensor Window with Setup Wizard-system service 11. Click Finish to complete the S e t Up w izard . Ethical Hacking and Countemieasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  35. 35. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots Set Up Wizard - Finish ‫0ו‬ ‫ו‬ The KFSensor Set Up Wizard has now got all the information it needs to configure your system. To read up on where to go from here dick the button below Getting Started Note on the Evaluation Version I There are a number of restrictions set forthe ten day duration of the evaluation period The export functionality is unavailable and the details of some events are deliberately obscured / The Ports View can be displayed by selecting the Ports option from the ViewTmenu. <B ck a Finish Cancel F IG U R E 3.9: KFSensor finish installation 12. Tlie K F S en so r main window appears. It displays list ol ID protocols. V is ito r and R e ce iv ed automatically when it starts. 111 the following window, all die nodes 111 die left block crossed out with blu e lin es are die ports that are being used. F Settings i i C ■2 , 4 1 tt ;1 kfsensor - local host - M... TCP ^ &to s « lIC P Por... C g 3 3 21 FTP 25 SMTP 53 DNS 63 DHCP -g 80 IIS K Sn o P fe s n l - Ea a nT l F e s r ro s io a v lu tio ria Hlp e ‫3 1־‬ ° i @ 151a ID 1 ‫5י‬ |§14 1 ‫3י‬ ^ a! ‫מ‬ Start ‫ש‬ ^ Duration Pro... Sens... Name Visitor 9/27/2012 5:27:41 PM... 0.000 UDP 138 NBT Datagram... WIN-ULY358K 9/27/2012 S:27:3S PM .‫״‬ 0.000 UDP 138 NBT Datagram... WIN-LXQN3* 9/27/2012 5:27:36 PM... 0.000 UDP 138 NBT Datagram... '2 9/27/2012 5:27:3C PM... 0.000 UDP 138 NBT Datagram... WIN-D39MR5I 111 §10__ 9/27/2012 5:27:15 PM... 0.000 UDP 138 NBT Datagram... Window^ 9/27/2012 5:16:15 PM... 0.000 UDP 138 NBT Datagram... Windows^ g WIN-MSSELCI 110 POP3 U 9 9/27/2012 5:15:4^ PM... 0.000 UDP 138 NBT Datagram... WIN-ULY358K] j § 119 NNTP 1 8 9/27/2012 5:15:35 PM... 0.000 UDP 138 NBT Datagram... g 155 MSRPC— B m 1 7 9/27/2012 5:15:3£ PM... 0.000 UDP 138 NBT Datagram... WIN-D39MR5I WINLXQN3'A 5 } 139 NBT Session ... 1 6 9/27/2012 5:15:35 PM... 0.000 UDP 138 NBT Datagram... WIN-MSSELCI j j 339 LDAP 15 14 13 9/27/2012 5:15:31 PM... 0.000 UDP 138 NBT Datagram... WIN-2N9STO< 9/26/2012 3:41:32 PM... 0.000 UDP 138 NBT Datagram... WIN-2N9STO! 9/26/2012 3:37:16 PM... 0.000 UDP 138 NBT Datagram... WIN-ULY358K m? 9/26/2012 3:36:57 PM... 0.000 UDP 138 NBT Datagram... Windows^ 1 1 9/26/2012 3:36:57 PM... 0.000 UDP 138 NBT Datagram... WINDOWS8 g 443 HTTPS ■ j 4.15 NBT SM 8— g 593 CIS g 1028 MS CIS 5 1080 SOCKS § 1433 SQL Server ^ 2234 Dircctplay ^ 3128 IIS Proxy J 3268 Gtobdl Catal.. Ser/en Running Visitors: 8 F IG U R E 3.10: KFSensor Main Window 13. Open a command prompt from the S ta rt menu apps. C E H Lab Manual Page 880 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  36. 36. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots The top level item is the server. The IP address o f the KFSensor Server and the name o f the currently active Scenario are displayed. The server icon indicates the state o f the server: 14. 111 die command prompt window, type n e ts ta t -an. Command Prompt Microsoft W d w C ersion 6.2 8400] in o s U l< 2 1 Microsoft Corporation All rights reserved. c> 0 2 |C:M JsersAdnin)netstat -an Rctive C onnections Proto Local A ddress Foreign A ddress T P 0.0.0.0:2 C 0.0.0.0:0 T P 0.0.0.017 C 0.0.0.0:0 T P 0.0.0.0:9 C 0.0.0.0:0 T P 0.0.0.0:13 C 0.0.0.0:0 T P 0.0.0.0:17 C 0.0.0.0:0 T P 0.0.0.0:19 C 0.0.0.0:0 T P 0.0.0.0:21 C 0.0.0.0:0 T P 0.0.0.0:22 C 0.0.0.0:0 T P 0.0.0.0:23 C 0.0.0.0:0 T P 0.0.0.0:25 C 0.0.0.0:0 0.0.0.0:0 T P 0.0.0.0:42 C T P 0.0.0.0:53 C 0.0.0.0:0 T P 0.0.0.0:57 C 0.0.0.0:0 0.0.0.0:0 T P 0.0.0.0:68 C T P 0.0.0.0:80 C 0.0.0.0:0 T P 0.0.0.0:81 C 0.0.0.0:0 T P 0.0.0.0:82 C 0.0.0.0:0 State L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN F IG U R E 3.11: Command Prompt with netstat -an 15. Tins will display a list ol listening ports. m The protocol level o f KFSensor is used to group the ports based on their protocol; either T C P or U D P. I 35 TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C TP C E 3 | Command Prompt 0.0.0.0:82 0.0.0.0:83 0.0.0.0:88 0.0.0.0:98 0.0.0.0:110 0.0.0.0:111 0.0.0.0:113 0.0.0.0:119 0.0.0.0:135 0.0.0.0:139 0.0.0.0:143 0.0.0.0:389 0.0.0.0:443 0.0.0.0:445 0.0.0.0:464 0.0.0.0:522 0.0.0.0:543 0.0.0.0:563 0.0.0.0:593 0.0.0.0:636 0.0.0.0:999 0.0.0.0:1024 0.0.0.0:1028 0.0.0.0:1080 0.0.0.0:1214 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 0.0.0.0:0 L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN L TN G IS E IN F IG U R E 3.12: Command Prompt with netstat -an C E H Lab Manual Page 881 Ethical Hacking and Countemieasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  37. 37. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots KF S e n so r 1 6 . L e a v e d ie 17. m F o llo w t o o l r u n n in g . d ie w iz a r d - d r iv e n in s ta lla t io n s te p s t o in s ta ll M e g a P in g i n Windows S erver 2012 (Host Machine). T h e V is ito rs V ie w is displayed o n the le ft panel o f the m ain w in d o w . I t com prises o f a tree M egaPing 1 8 . T o la u n c h m o v e y o u r m o u s e c u r s o r to d ie lo w e r - le f t c o r n e r o f y o u r d e s k to p a n d c lic k structure th a t displays the nam e and status o f the Start. K F S ensor Server and the visito rs w h o have connected to the server. F IG U R E 3.13: starting window s in w indow s server 2012 19. C lic k d ie MegaPing a p p 11 1 d ie S ta rt m e n u apps. Start Administrator Mo/11la Firefox *‫ג‬ © £ m Googfc awane 6 HTTPort 3.SNFM * Conmand Promp* 1 * ‫ף״י‬ Hyper•V Manager v/ogaPrv; Notepad* ‫«י‬ * S B E ach v is ito r detected Admnktr... Tools b y the K F S ensor Server is listed. T he visito r's IP address and d om ain name are displayed. £ F IG U R E 3.14: click on megaping 20. T h e m a in w in d o w o f M egaPing a p p e a rs as show n in d ie f o llo w in g s c r e e n s h o t. C E H Lab Manual Page 882 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  38. 38. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots 2* Help A A fl (3 A A J DNS Lookup Name J ? Finger Network Time = <>4 * * ■ * * ‫ ע‬n © 53 ® DNS List Hods A,______ DNS Ust Hosts A Pin9 || ^ ^5 % ^ f '4^ V ^ J ca I- n ' x MegaPirvg (Unregistered) File View Tools ^ DNS List Hosts Settings Destnabon: <None> Traceroute Whois Network Resources Process Info System Info IP Scanner NetBIOS Scanner Share Scanner Security Scanner Port Scanner Host Monitor □ Select Al I Add F IG U R E 3.15: MegaPing o n W indows Server 2012 T h e V is ito rs V ie w can be displayed b y selecting the V isito rs o p tio n fro m the V ie w m enu. 21. 22. S e le c t Port S c a n n e r E n te r d ie I P fro m a d d re s s o f l e f t s id e o f d i e lis t . W indows 8 ( 1 1 1 d iis la b I P 10 .0.0.12 a d d r e s s is m a c h in e 1 1 1 w h i c h I v F S e n s o r is r u n n i n g 1 1 1 D e s t i n a t i o n A d d r e s s L i s t a n d c lic k Add. ‫7־‬ n ^ i MegaPing (Unregistered) file Yiew Tools Help 3 4 ‫י‬ © A a g ai A A o 3 % 4 A DNS List Hosts * DNS Lookup Name Finger Network Time J ‫׳‬ Po»l Scanner J2f Port Scanner A Pin9 22 Traceroute ^ Whois 3 Network Resources <$> Process Info .J | System Info ^ IP Scanner NetBIOS Scanner Share Scanner £ Security Scanner Destnabon: . . 100 .12 0 > Port Scanner Settings Protocob Scan Type TCP and UDP v Range of Ports ♦ Custom Ports L v | Start Destnabon Address List □ Seiect Al Host Monitor Type Keyword Description | »Vw. F IG U R E 3.16: MegaPing: Select 10.0.0.12 fro m H ost, Press Start button 23. C h e c k d ie I P a d d re s s a n d c lic k d ie S ta rt b u t t o n t o s ta r t lis t e n in g t o d ie tr a ffic 0 1 1 1 0 .0 .0 .1 2 . C E H Lab Manual Page 883 Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  39. 39. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots ry MegaPing (Unregistered) ‫ז ״י - ו‬ * 1 1 1 File yiew Tools Help 3 ca DNS List Hosts ^5, DNS Lookup Name Finger Network Time V is ito r is obtained by f t pin9 gg Traceroute Whols 1 3 Network Resources % Process Info ^ System Info $ IP Scanner NetBIOS Scanner Share Scanner £ Security Scanner a reverse D N S lo o k u p on the visito r's IP address. A n ic o n is displayed in dicatin g the last tim e the v is ito r connected to the server: i ti V >‫4 <יז‬ $ <$ 0 ■* < Port Scanner ‫צ‬ Port Scanner Settings Protocols Scan Type: 100 .12 . .0 TCP and UDP v Range of Ports ♦ Custom Ports L v a t Destnation Address L ist Ho* JSelect Al ₪al 1.0 .1 0 .0 2 Add Delete Host Monitor Type Keyword Description F IG U R E 3.17: MegaPing: Data o f die packets recieved 24. T h e f o l l o w i n g im a g e d is p la y s d i e i d e n t i f i c a t i o n o f T e l n e t o n p o r t 2 3 . MegaPing (Unregistered) File yiew Jools Help i. A S al 1*1 A # DNS List Hosts Jj, DNS Lookup Name £ Finger J i Network Time t i p'"9 f f Traceroute Whols " 3 Network Resources <3> Process Info ^ System Info f IP Scanner ^ NetBIOS Scanner ^ Share Scanner £ Security Scanner / T h e V is ito rs V ie w is lin ke d to the E ve nts V ie w and acts as a filte r to it. I f yo u select a v is ito r then o n ly diose events related to th a t v is ito r w ill be displayed Port Scanner Destnabon: 1 .0 .1 0 .0 2 IF Port Scanner Settings Protocols Scan Type TCP and UDP v Range of Ports ♦ Custom Ports L v Destination Address bat Host ‫ ס‬a‫־‬p ‫כ‬ □ Select Al 0 S 1 .0 .1 0 .0 2 I Add £ } Host Monitor in d ie E vents V iew . £ 2 2 ‫321 צ‬ ^42 f 53 Type TCP TCP TCP TCP TCP Keyword telnet smtp nameser... domain Descnption Risk High Telnet Elevated | Simple Mail Transfer Elevated Host Name Server Low Domain Name Serv... Low F IG U R E 3.18: MegaPing: Telnet po rt data 25. C E H Lab Manual Page 884 T h e f o l l o w i n g im a g e d is p la y s d i e i d e n t i f i c a t i o n o f S o c k s o n p o r t 1 0 8 0 . Ethical Hacking and Countemieasures Copyright © by EC-Council All Rights Reserved. Reproduction is Stricdy Prohibited.
  40. 40. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots r< $ file l- T 0 ■ * MegaPing (Unregistered) View Tools |4. A S Help aj it ti 4 % 3 3‫־‬ • ti V 3 y t DNS List Hosts DNS Lookup Name ^ Finger a i Network Time 4 3‫י‬ 4 jS, T h e events are sorted Port Scanner Settings A in e itlie r ascending o r descending chronological Pin9 gg Traceroute ^ Whols 13‫ ־‬Network Resources Process Info ^ System Info $ IP Scanner NetBIOS Scanner jj* Share Scanner <0 Security Scanner order. T h is is co n tro lle d by o p tio n s o n the V ie w M enu. Protocob: Scan Type Destnabon: . . 100 .12 0 TCP and UDP v Sop Range of Ports + Custom Ports L v Destination Address L ist Host 0S1O.O.O.12 □ Select fll I * A [ Delete [ Bepoit EE Jgj Host Monitor Ports 080‫ו| / ג‬ £ 1214 £ 1433 £ 1494 JT 1801 Type Keyvwrd Descnption TCP socks Socks TCP TCP ms-sql-s M crosoft-SQL‫־‬Ser... TCP ica Citrix ICA Client TCP 1 Low Low Low Low ' F IG U R E 3.19: MegaPing: Blackjack virus 26. N o w c o m e b a c k to Windows 8 v i r t u a l m a c liu ie a n d lo o k f o r T e ln e t d a ta . KFSensor Professional - Evaluation Trial File View Scenario Signatures J 9 a T |‫ ־‬e ° I ° i @ I 5 » a |1 J kfsensor - localhost - M... • B *-J T P C ^ 0 Closed TCP Per■ ■ 0 2 Death, Trojan ... 7 Echo - Recent... *I 9 Discard - Rec... ^ 15 Daytime - R... ^ 17 Quote of the.. ^ 19 chergcn R c. 21 FTP - Recent.. ^ 22 SSH - Recen... A 123 Telnet - Reel] j § 25 SMTP - Rece.. g 42 WINS • Rece.. g 53 DNS • Recen.. ^ 57 Mail Transfer.. g DHCP • Rece... 80 IIS • Recent... j§ 8 1 IIS 81 - Rece.. 82 IIS 82 ■Rece.. 83 IIS 83 - Rece.. J Keiberos - R... ^ / T h e events th a t are displayed are filte re d b y the c u rre n tly selected ite m in Settings Help •1 31 !d a > a a lfc t * I 9/27/2012 6:24:13 PM .0.000 Duration Pro... Sens... Name ‫ ״‬TCP 23 Telnet 6 8 the P orts V ie w o r the V is ito rs V iew . 8 8 Ser/er Running Visitors: 8 F IG U R E 3.20: Telnet data o n KFSensor 27. C E H Lab Manual Page 885 T h e t o l l o w u i g im a g e d is p la y s d i e d a t a o f a D e a d i T r o ja n . Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  41. 41. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots KFSensor Professional - Evaluation Trial File View Scenario Signatures Settings Help j a a if^]a ifrtln Tpili 0- kfsensor - localhost - M... < ‫<״‬ Duration Pro... TCP Sens... Name 9/27/2012 624:12 PM... j ^ QC se T P P r lo d C - ofT Q 1 Death, Trojan ...| 2 I £ 7 Echo - Recent... U £ 9 Discard - Rec... & 13 Daytime - R... ^ ^ E x it: Shuts d o w n the KF S ensor M o n ito r. I f the £ ^ KF S ensor Server i f n o t installed as a systems service then it w ill be shut d o w n as w ell. r=| g ^ g 17 19 21 22 23 25 42 53 57 Quote of the.. chargcn - Rc... FTP - Recent... SSH - Recen... Telnet ‫ ־‬Rec... SMTP - Rece.. WINS - Rece.. DNS - Recen.. Mail Transfer.. DHCP - Rece.. 6 8 80 IIS - R ecent... j§ 8 1 ^ 82 j § 83 =j IIS 81 - Rece.. IIS 82 - Rece.. IIS 83 - Rece.. Kerberos - R... y 8 8 Ser/en Running Visitors: 8 F IG U R E 3.21: Death Trojan data on KFSensor Lab Analysis A n a l y z e a n d d o c u m e n t d i e r e s u lt s r e la t e d t o d i e la b e x e r c is e . G i v e y o u r o p i n i o n o n y o u r t a r g e t ’ s s e c u r it y ‫ ־‬p o s t u r e a n d e x p o s u r e . P L E A S E T A L K T O Y O U R I N S T R U C T O R R E L A T E D T o o l/U tility I n f o r m a tio n T O I F T H I S Y O U H A V E Q U E S T I O N S L A B . C o lle c te d /O b je c tiv e s A c h ie v e d O u tp u t: K F S e n s o r In fe c te d P o rt n u m b e r: H o n e y p o t 1080 ID S N u m b e r o t D e te c t e d T r o ja n s : 2 I n te r n e t □ C E H Lab Manual Page 886 R e q u ir e d 0 Y e s P la tf o r m 0 C o n n e c tio n N o 0 !L a b s S u p p o r te d C la s s r o o m Ethical Hacking and Countermeasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.
  42. 42. M odule 17 - Evadin g ID S, F ire w a lls and H oneypots H T T P T u n n e lin g U s in g H T T P o r t HTTPo/fisapo r m HTTHostthatce t sa tr n p re ttu n lt r u ha r ga from r ae a s a n n e ho g proxys r e ofirewall. ev r r I C O N K E Y / V a lu a b le in f o r m a tio n S T est to u t k n o w le d g e Lab Scenario A tta c k e rs a re a lw a y s in a h u n t th e y c a n e n te r y o u r n e tw o r k a tta c k e r can get a tta c k e rs a re a b le p r e v io u s la b , h ija c k in g p a c k e ts a tta c k s , to th e y c lie n t s IP th a t c a n s p o o fin g th ro u g h c a p tu re can fo r b y a fir e w a ll n e tw o rk p e rfo rm to tr a ffic T r o ja n be e a s ily dam age b y o r s p o o fin g as y o u a tta c k s , have c o m p r o m is e d and s te a l y o u r d a ta . T h e th e IP le a r n e d r e g is t r y a d d re s s . to d o a tta c k s , in It th e p a s s w o rd W e b e x e r c is e ca W o r k b o o k r e v ie w n e tw o rk . A n e tc ., w h ic h a tta c k e r m a y u s e t h e n u s e tin s r a w d e s t in a tio n IP as e x tr a c tin g a p a c k e t d a ta a d d re s s , c h e c k s u m . T im e H ence, can to L iv e n e tw o rk p ro v e a n e tw o rk to r e tr ie v e s o u rc e and c o m p a re th e s e d is a s tr o u s p ro b e to fo r c a p tu re p o rts , an ra w p a c k e t in fo r m a tio n d e s t in a tio n fro m yo u c a p u ir e d d e t a ils w i t h c a n a ls o m o d e le d c h e c k th e s h o u ld tr a ffic a d d re s s e s , p r o t o c o l ty p e , h e a d e r le n g th , has o c c u rre d . Y o u be o r g a n iz a t io n ’s p a c k e t d a ta and s u c h as s o u rc e and f la g s , header le n g th , ( T T L ) , a n d p r o t o c o l ty p e . a d m in is t r a t o r in fo r m a tio n to s o u rc e a tta c k be such a b le and id e n t if y and d e s t in a tio n s ig n a t u r e s a t t a c k lo g s to as s o u rc e to t o r th e a tta c k s d e s t in a tio n p o r t s , e tc . d e te r m in e if an lis t o t a tta c k s b v IP and a tta c k and ta k e b y w h ic h you e v a s iv e a c t io n s . A ls o , y o u can s h o u ld id e n t if y c o n d u c tin g to w h ic h be fa m ilia r w it h a d d it io n a l s e c u r it y s im p le n e t w o r k a n e tw o rk ID S th e H T T P r is k s th a t a n d v u ln e r a b ilit y c a n id e n t if y t u n n e lin g m ay be r e a d ily s c a n n in g a n d d e t e r m in e m a lic io u s c h a n n e l . 111 t i n s l a b , y o u w i l l l e a r n H T T P te c h n iq u e n o t tr a ffic w id iin v is ib le by th e e x te n t a c o m m u n ic a t io n n u in e liiig u s in g H T T P o r t . Lab Objectives T in s la b w i l l s h o w y o u h o w and n e tw o rk s c a n b e s c a n n e d a n d h o w to use HTTPort HTTHost. Lab Environment 11t h e 1 C E H Lab Manual Page 887 la b , y o u n e e d d ie H T T P o r t t o o l. Ethical Hacking and Countenneasures Copyright © by EC-Council All Rights Reserved. Reproduction is Strictly Prohibited.

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