John the Ripper is a powerful hash-cracking tool that efficiently cracks various hash types such as Windows authentication hashes, /etc/shadow hashes, and password-protected files. Through practical tasks, users learn the syntax, features, and methods to conduct dictionary attacks and utilize custom rules. Affected: Windows systems, Linux systems, password-protected ZIP and RAR files
Keypoints :
- John the Ripper is a versatile tool for hash cracking.
- Users must have basic cryptography and command-line knowledge.
- Different hash types include MD5, SHA1, NTLM, and more.
- Dictionary attacks are used to crack hashes efficiently.
- John supports multiple operating systems.
- The RockYou wordlist is commonly utilized for testing.
- Single Crack mode allows creation of passwords based on username information.
- Custom rules can be created to exploit predictable password patterns.
- John can crack password-protected ZIP and RAR files as well as SSH keys.