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John the Ripper

https://www.openwall.com/john/

Open Source ◆ Kali Linux

Categories

Password Attacks

Description

Fast password cracker available for many operating systems. Auto-detects hash types, supports dictionary and incremental attacks, and includes a rules engine. The Jumbo community patch adds 100+ hash types.

Keywords

password cracking hash dictionary brute force MD5 NTLM SHA incremental rules

Example Usage

john --wordlist=/usr/share/wordlists/rockyou.txt hashes.txt
john --format=NT hashes.txt --rules=best64
john hashes.txt --show