Ophcrack

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Ophcrack is an open source (GPL license) program that cracks Windows LM hashes using rainbow tables. It can crack 99.9% of alphanumeric passwords of up to 14 characters in usually a few seconds, and at most a few minutes. There is also a LiveCD version which automates the retrieval, decryption, and cracking of passwords from a Windows system.

Starting with version 2.3, Ophcrack also cracks NT hashes.

[edit] External links

• Ophcrack 2 home page
• home page of Ophcrack 1 - including form to submit hashes and instantly crack passwords
• Ophcrack 2.3 Review - also includes some really simple instructions for novice users
• Ophcrack 2.2 Password Cracker Released