John the Ripper is a fast password cracker, currently available for many flavors of Unix (11 are officially supported, not counting different architectures), Windows, DOS, BeOS, and OpenVMS. Its primary purpose is to detect weak Unix passwords. Besides several crypt(3) password hash types most
... [More] commonly found on various Unix flavors, supported out of the box are Kerberos AFS and Windows NT/2000/XP/2003 LM hashes, plus several more with contributed patches. [Less]
This is a fork from the small 'ctracker.php' script written by Christian Knerr to add more (and better) tracking functionalities (e.g. log all attacks into database for analysis purposes). This script also stops some attacks by checking POST data for suspicious content (e.g. some spam attack forms
... [More] contains CSS to hide their links from the user/admin but not from search engines). [Less]
Designed to use what is known about users via the /etc/passwd file on unix/linux systems to generate a dynamic dictionary or csv file of more accurate guesses as to what their possible password may be, to look for bad password protection practices.
I finished my C md5 cracker finally, it's pretty fast but not comparable to that uses the GPU or those made in some scripting language.
It uses a not casual brute force and takes three command line arguments: