Brief login form password theft tutorial showing how to backdoor php code once access has been gained to a system in order to not have to crack hashes.
You can download it from the following link: https://packetstormsecurity.com/files/download/73375/password-gank.txt
Source: https://packetstormsecurity.com/files/73375/Password-Ganking-By-Modifying-PHP-Code.html