This document provides an overview of ethical hacking. It defines ethical hacking as legal hacking with permission to identify vulnerabilities. It discusses different types of hackers (white hat, black hat, grey hat), the hacking process, certifications, hacking languages, and system/data security techniques. The document also covers keyloggers, anti-keyloggers, tips for securing systems, advantages and disadvantages of ethical hacking. Overall, the document serves as an introduction to the key concepts and approaches involved in ethical hacking.

1. ETHICAL HACKING

2. CONTENTS
 Introduction
 Types Of Hackers
 Hacking Process
 Certifications
 Hacking Language
 Security Types
 System Security
 Keyloggers,Anti-keyloggers
 Tips For Securing System Data And System
 Advantages Of Ethical Hacking
 Disadvantages Of Ethical Hacking
 Conclusion

3. INTRODUCTION
 Ethical hacking is also known as penetration
testing, instruction testing or red teaming
 It is Legal
 Permission is obtained from the target
 Part of an overall security program
 Identify vulnerabilities visible from Internet at
particular point of time
Hacker
Cracker

4. TYPES OF HACKERS
 White Hat Hacker
 Good guys
 Don’t use their skill for illegal purpose
 Black Hat Hacker
 Bad guys
 Use their skill maliciously for personal gain
 Grey Hat Hacker
 It is a combination of White hat n Black Hat
Hackers
 Goal of grey hat hackers is to provide national
security

5. HACKING PROCESS
Foot printing
Scanning
Enumeration
Attack and Gaining
Access
Escalating Privilege,
Covering Tracks and
Creating Backdoors

6. CERTIFICATIONS
 The International Council of E-Commerce Consultants
(EC-Council) provides a professional certification for
Certified Ethical Hackers (CEH). A certified ethical
hacker is an ethical hacker who has obtained the
certification provided by the EC-Council.
1. Legality
2. Footprint
3. Scanning
4. Enumeration
5. System Hacking
6. Trojans & Backdoors
7. Sniffers
8. Denial of Service
9. Social Engineering
10. Session Hacking

7. HACKERS LANGUAGE
Example:
Hacking is good
H4ck|||g 1$ 900d

8. SECURITY TYPES
 Broadly we can divide security in three divisions
1.System security
2.Data Security
3.Network Security
 System security is least consider nowadays also
when we have maximum number of hackers and
crackers.

9. SYSTEM SECURITY
 System security means securing a system from
unauthorized access by the person who can
physically access it.
 System security is further divided into two divisions
1. System accessible Security
2. Data accessible Security

10. SYSTEM ACCESSIBLE SECURITY
 System accessible security means restricting
someone to access the system completely, it can
be referred as OS level security.
Eg:
Provide user password in the system

11. DATA ACCESSIBLE SECURITY
 When we give permission to a user to access only
certain files and folders in a system then it is
consider as the Data Accessible Security.
 We can achieve data accessible security by many
ways.
 Some of the ways are:-
1) Encrypting Hard disk
2) Hiding Folders
3) By locking folders

12. KEYLOGGERS, ANTI-KEYLOGGERS
 Keyloggers are a software or hardware which
records the screenshots or keystrokes without the
knowledge of user.
 Types of keyloggers:
1.SOFTWARE KEYLOGGERS
2.HARDWARE KEYLOGGERS
 Hardware key loggers can be detected by carefully
observing the port but to prevent system from
software keyloggers, we need to install anti
keyloggers.

13. KON BOOT

14. TIPS FOR SECURING SYSTEM DATA AND
SYSTEM
 Install and Use Anti-Virus, firewalls & Anti key logger Programs
 While installing OS like Windows XP give admin password.
 Use Care When Reading Email with Attachments and following links.
 Install and Use a Firewall Program
 Make Backups of Important Files and Folders
 Change passwords
 Use Care When Downloading and Installing Programs
 Install and Use a Hardware Firewall
 Install and Use a File Encryption Program and Access Controls
 Safeguard your Data
 Real-World Warnings keep you safe online.

15. ADVANTAGES OF ETHICAL HACKING
 Provides security to banking and financial
establishments
 Prevents website defacements
 An evolving technique
 To catch a thief you have to think like a thief

16. DISADVANTAGES OF ETHICAL HACKING
 All depends upon the trustworthiness of the ethical
hacker
 Hiring professionals is expensive.

17. REFERENCES
 Ethical Hacking –Wikipedia
 Ethics in ethical hacking-Idimadakala nagaraju
 Need of ethical hacking in online world-Vivek
shrivastava,monika pangaria
 History and impact of ethical hacking-History of
computing final paper

18.  Ethical hacking : A technique to enhance
Information security-Gorpreet k.Juneja
 Ethical hacking techniques with penetration testing-
K.Bala chowdappa,S.Subba lakshmi,P.N.V.S.
Pavan kumar
 Ethical hacking in linux environment-Anirudhha P
tekada,pravin Gurjar,Pankaj
R.Inglr,DR.BB.Meshram
 System security in ethical hacking-Kumar utkarsh
 http://www.slideshare.com

19. CONCLUSION
 We should pay maximum attention towards our
system security and we can do the same by
remembering this line “Treat your password like you
treat your toothbrush. Never give it to anyone else
to use, and change it every few months & most
importantly use SYSKEY”