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Intelligent adware blocker symantec
 

Intelligent adware blocker symantec

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Final Pune university's B.E project presentation

Final Pune university's B.E project presentation

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    Intelligent adware blocker symantec Intelligent adware blocker symantec Presentation Transcript

    • Intelligent Adware Blocker By : - Sonal Kamble (B 3208528) - Chaitali Magdum (B 3208537) - Aditi Pantoji (B 3208546) - Prajakta Pednekar (B 3208550) Sponsored by : Symantec Corporation External Guide: Internal Guide: Mr. Vikram Saurabh Mr. Harshad Wadkar 06/26/11 Intelligent Adware Blocker
    • 06/26/11 Intelligent Adware Blocker
      • Project Problem Statement:
      • To develop Intelligent Adware Blocker
      • Project Problem Statement Description:
      • Pop-up blocking application sits between client and server.
      • It sniffs the traffic and applies policies before rendering it to the client and the client will not be aware about this.
      • The policies applied should be based on predefined categories read by the application from database and user defined policies can also be added to it.
      • User defined policies can depend on certain predefined keywords and regular expressions. Predefined categories like bank, pornography, social media etc.
      • Area/Domain: Internet Security
      • Adware or  advertising-supported software is any  software  package which
      • automatically plays, displays or downloads advertisements to a computer.
      • Adware, by itself, is harmless however some adware may come with
      • integrated spyware such as key loggers and other privacy-invasive
      • software.
      What is Adware ? 06/26/11 Intelligent Adware Blocker
    • Need of Adware Blocker Application
      • Adware Blocker application will be used to block Adware which can be in the form of Pop-up and Pop-under which we come across while accessing many websites.
      • Pop-up and pop-under blocker which comes along with Browsers like Internet Explorer, Mozilla blocks all categories of pop-ups and pop-unders.
      • There can be various categories like sports, news, shares, banking etc. So these pop-up and pop-under blocker will not provide facility of selecting which category of pop-up to allow and to deny.
      • Hence to provide facility of category selection we require Adware Blocker.
      06/26/11 Intelligent Adware Blocker
    • 06/26/11 Intelligent Adware Blocker Client Server Server Client Server Client HTTP Request HTTP Request HTTP Response HTTP Response + Adware Adware Blocker HTTP Request HTTP Request HTTP Response + Adware HTTP Response Ideal scenario Actual scenario Scenario in Project
    • Modes of Operation
      • IDS mode
      • - Squid proxy server
      • - Snort
      • IPS mode
      • - Snort_inline
      • Bypass mode
      06/26/11 Intelligent Adware Blocker
    • 06/26/11 Intelligent Adware Blocker Back Packet Flow diagram IDS mode
    • 06/26/11 Intelligent Adware Blocker
        • Intelligent Adware Blocker IDS Mode
    • 06/26/11 Intelligent Adware Blocker Back Packet Flow diagram IPS mode
    • Intelligent Adware Blocker IPS Mode 06/26/11 Intelligent Adware Blocker
    • Squid Proxy Server
      • Squid is a high-performance proxy caching server for web clients, supporting FTP, gopher, and HTTP data objects.
      • Steps required to use Squid
      • Downlad and Install Squid
      • Configure Squid
      • acl bad_pc src 172.16.32.48
      • acl good dstdomain .google.com
      • http_access allow good
      • http_access deny bad_pc
      • Restart squid service
      • Monitoring User Access  The access information gets stored in the access.log file.
      •    
      06/26/11 Intelligent Adware Blocker Back to previous slide
    • Transparent Squid Proxy
      • Modify Squid.conf http_port 3128 transparent
      • iptables -F
      • iptables -t nat -F
      • # set this system as a router for Rest of LAN
      • iptables --table nat --append POSTROUTING --out-interface eth1 -j MASQUERADE
      • iptables --append FORWARD --in-interface $LAN_IN -j ACCEPT
      • # unlimited access to LAN
      • iptables -A INPUT -i eth0 -j ACCEPT
      • iptables -A OUTPUT -o eth0 -j ACCEPT
      • # DNAT port 80 request comming from LAN systems to squid 3128 ($SQUID_PORT) aka transparent proxy
      • iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j ACCEPT
      • # if it is same system
      • iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT --to-port 3128
      06/26/11 Intelligent Adware Blocker
    • 06/26/11 Intelligent Adware Blocker Back
    • Snort
      • Snort is a signature detection-based intrusion detection system (IDS) issues an alert when network traffic matches a signature in the dataset.
      • Snort can be used as a packet sniffer to capture traffic from the network, as a packet logger to save packets to a file or database, or as an IDS.
      06/26/11 Intelligent Adware Blocker Back to previous slide
    • Snort IDS mode
      • IDS (Intrusion Detection System):-
      • An intrusion detection system ( IDS ) is a device or software application that monitors network and/or system activities for malicious activities or policy violations and produces reports to a Management Station.
      • Modes of Snort IDS:-
      • Sniffer mode
      • Packet logger mode
      • NIDS mode
      • Snort IDS rule generation
      • alert tcp any 80 -> any any (content:”uim”; msg :“uim popup”; sid:1001;)
      • Command to run snort in IDS mode
      • snort –dev –i eth0 –l /var/log/snort –c /etc/snort/rules/ids.rules
      • Report Generation IDS mode
      06/26/11 Intelligent Adware Blocker
    • 06/26/11 Intelligent Adware Blocker Using Dom parser (i ds.rules) Back
    • 06/26/11 Intelligent Adware Blocker Back
    • Snort IPS mode
      • IPS (Intrusion Prevention System):
      • The main functions of “intrusion prevention systems’’ are to identify malicious activity, log information about said activity, attempt to block/stop activity, and report activity.
      • To make snort work as IPS it has to be configured in either of the 3 modes:
      • Flexible response
      • Snort_inline
      • SnortSam
      06/26/11 Intelligent Adware Blocker Back to previous slide
    • Snort_inline dependency packages
      • libipq
      • iptables-dev
      • libpcreflex
      • bison 1.2.1
      • Libpcap 0.7.2
      • Pcre
      • libdnet
      • libnet
      • libnet filter-queue-dev
      • dnet
      06/26/11 Intelligent Adware Blocker
    • Topology Required For Snort_Inline (IPS) 06/26/11 Intelligent Adware Blocker
    • Steps to implement snort_inline
      • Implement Bridge.
      • Installation of required packages for snort_inline.
      • Install and Configure snort_inline with mysql facility.
      • Apply Iptable rules:
      • iptables –A INPUT –p icmp –j QUEUE
      • iptables –A FORWARD –p tcp –dport 80 –j QUEUE
      • Write rule in local.rules ( Rule Generation)
      • drop tcp any 80 -> any any (content :“google”; msg :“response from google”; sid:1001;)
      • Apply Snort_inline rule:
      • snort_inline – dev –c /etc/snort_inline/rules/ips.rules -Q -l /var/log/snort_inline
      • Report Generation IPS mode
      06/26/11 Intelligent Adware Blocker
    • 06/26/11 Intelligent Adware Blocker (ips.rules) (ips.rules) Using dom parser Back
    • 06/26/11 Intelligent Adware Blocker Back
    • 06/26/11 Intelligent Adware Blocker
      • Technologies used:
      • JAVA ( servlet ) for application controller
      • jsp ( java server pages) and HTML for frontend
      • Java script (For form validations)
      • Perl script ( To store entries of Squid’s access.log into database table )
      • Shell script ( To start and stop Snort, Snort inline and Squid’s services )
      • ( To apply iptables rules according to modes )
      • Operating System: Ubuntu 10.10
    • Requirements for developing the system
      • Hardware
      • Desktop PC’s or Laptops with Intel Pentium based x86 processor
      • Desktop PC with two NIC cards
      • Hard line/Wired internet connection
      • Switch(To implement Snort_inline)
      • Software
      • Snort (IDS) 2.8.52 with Mysql facility
      • Snort_inline and its dependency packages
      • Squid Proxy Server 2.7
      • MySQL_Server 5.1.49
      • MySQL_Client 5.1.49
      • Apache Tomcat 6.0.32 web server
      • gcc 4.4.5 and gdb 7.2 to compile and debug code
      • JDK 1.6
      • sed 4.2.1
      • Browser software (Mozilla Firefox, Chromium, Epiphany)
      06/26/11 Intelligent Adware Blocker
    • Requirements for using the system
      • Hardware
      • Desktop PC’s or Laptops with Intel Pentium based x86 processor
      • Hard line/Wired internet connection
      • Software
      • Browser software (Mozilla Firefox, Chromium, Epiphany, Internet Explorer)
      • Operating system for client machine (Linux or windows)
      • Operating system for server machine (Linux)
      06/26/11 Intelligent Adware Blocker
    • View Log
      • LogBook.xslx
      • http://cumminsit14symantec.blogspot.com
      06/26/11 Intelligent Adware Blocker
    • References
      • Squid: the definitive guide - by Duane Wessel
      • Snort: IDS and IPS toolkit - by Jay Beale, Andrew R. Baker
      • Snort cookbook - by Angela Orebaugh, Simon Biles, Jacob Babbin
      • Shell Scripting : Beginning Linux Programming by Neil Matthew and Richard Stones
      • Bridge Configuration http://www.faqs.org/docs/Linux-HOWTO/Ethernet-Bridge-netfilter-HOWTO.html
      • Iptables http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch14_:_Linux_Firewalls_Using_iptables
      • Snort_inline
      • http://openmaniak.com/snort_tutorial_snort.php#ancre-manual
      • http://support.avaya.com/css/P8/documents/003915688
      06/26/11 Intelligent Adware Blocker
    • Achievement
      • First prize in Project Competition
      • Arranged by THE INSTITUTION OF ELECTRONICS AND TELECOMMUNICATION ENGINEERS (IETE).
      • Held on
      • 16 th April 2011 at AISSMS college of engineering
      06/26/11 Intelligent Adware Blocker
    • Acknowledgement : 06/26/11 Intelligent Adware Blocker Mr. Vikram Saurabh (External guide) Mr. Harshad Wadkar (Internal guide) Mrs. Madhura Tokekar (HOD) Mr. Makarand Velankar (Project Coordinator) Mr. Shripad Tawade
      • Thank you…
      06/26/11 Intelligent Adware Blocker