Just googling around I came across with this really beautiful and brilliant piece of work. I am sure you would at some point of time would need this. So this is one handy tool you should keep it in your collection.

The usage of this tool comes when you have forgotten the password of your Windows(OS). It happened with me many a times and the process which I had to take into consideration is to re-install my windows as till now I didn’t came across any brilliant mind who could get me out of this situation.

Name of the tool is

ophcrack

Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman’s original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.

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).

You can download it from here.

Enjoyzzz