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.
* » Brute-force module for simple passwords.
* » Audit mode and CSV export.
* » Real-time graphs to analyze the passwords.
* » LiveCD available to simplify the cracking.
* » Loads hashes from encrypted SAM recovered from a Windows partition, Vista included.
* » Free and open source software (GPL).

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