Cracking

1
Cracking

• By Sky VanDyke

2
What is Cracking?

• A cracker is defined as a person who compromises
  the security of a system without permission.

3
Is There a Difference Between Cracking and
Hacking?
4
Definitions of White Hat Hackers

• A hacker in computer programming is a software
  designer and programmer who build programs and
  systems that garner the respect of one's peers.
• In computer security, a hacker is a person who
  specializes in work with the security mechanisms
  for computer and network systems.

5
Three Types of Cracking

• Password Cracking
• System or Security Cracking
• Software Cracking

6
Password Cracking

• Password cracking is the process of discovering
  the plaintext of an encrypted computer password.
• Purpose of password cracking?

7
Ways to Crack a Password

• The non-complicated way
• The advanced way
• Dictionary attacks
• Hybrid attacks
• Brute Force attacks
• Protocol Analyzer or Network Sniffer

8
System or Security Cracking

• System cracking or security cracking is the
  defeating of security devices in computer
  networks without permission.

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Common Methods Used

• Security exploits
• Packet sniffers
• Rootkits
• Social engineering
• Trojan horse
• Virus
• Vulnerability scanner
• Worms.

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Security Tools to Help Protect Your System

• The Firewall
• Intrusion Detection System or IDS
• Anti-Virus Software
• Encryption

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Software Cracking

• Software cracking can be defined as modifying a
  program with the intention of making it behave in
  a particular manner and not the way it was
  intended to behave when it was created.
• Software cracking is the defeating of software
  copy protection.

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Basic Steps to Cracking a Program

• Run it normally
• Open it in a dissassembler
• Check for key words
• Open it in HIEW Hackers View
• Change disassembled code
• Changes made to the protective features are now
  changed
• And it has now been cracked.

13
References

• Password Cracking. Wikipedia. 29 April 2007.
  lthttp//en.wikipedia.org/wiki/Password_crackinggt
• System Cracking. Wikipedia. 29 April 2007.
  lthttp//en.wikipedia.org/wiki/System_crackinggt
• Software Cracking. Wikipedia. 29 April 2007
  lthttp//en.wikipedia.org/wiki/Software_crackinggt
• Cracking. Wikipedia. 29 April 2007
  lthttp//en.wikipedia.org/wiki/Crackinggt
• Cyber Crime Piercing the Darkness
  ThinkQuest. 29 April 2007. lthttp//library.think
  quest.org/04oct/00460/cracking.html gt
• Shimonski, Rob. Hacking Techniques IBM.
  lthttp//www-128.ibm.com/developerworks/library/s-c
  rack/gt