OphCrack

Ophcrack is a free Windows password cracker based on rainbow tables. It is a very efficient implementation of rainbow tables done by the inventors of the method. It comes with a Graphical User Interface and runs on multiple platforms.

Features:

Runs on Windows, Linux/Unix, Mac OS X, ...

Cracks LM and NTLM hashes.

Free tables available for Windows XP and Vista/7.

Brute-force module for simple passwords.

Audit mode and CSV export.

Real-time graphs to analyze the passwords.

LiveCD available to simplify the cracking.

Dumps and loads hashes from encrypted SAM recovered from a Windows partition.

Free and open source software (GPL).

OphCrack

OphCrack LiveCD