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yep, ophcrack is it. It comes with a small set of rainbow tables that will crack a lot of passwords 8 characters and under.


The Live CD will crack a lot more than 8-character passwords!

Ophcrack Live CD

The Ophcrack LiveCD is a bootable Linux CD-ROM containing ophcrack 2.3 and a set of tables (SSTIC04-10k). It allows for testing the strength of passwords on a Windows machine without having to install anything on it. Just put it into the CD-ROM drive, reboot and it will try to find a Windows partition, extract its SAM and start auditing the passwords.

Rainbow tables

Ophcrack 2.3 uses the alphanumeric table sets of ophcrack 1.0 as well as new table sets with special characters. This means that it cracks 99.9% of passwords of length 1 to 14 containing uppercase letters, lowercase letters and numbers with the old table sets. With the new table set, it cracks 96% of passwords of length 1 to 14 composed by characters contained in this set:

0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&' ()*+,-./:;&<=>?@[]^_`{|}~ (including the space character)

Ophcrack 2.3 also cracks NTLM hashes using a new tables set called NTHASH. It cracks 99% of:

* passwords of length 6 or less composed by characters in this set:

0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&' ()*+,-./:;&<=>?@[]^_`{|}~ (including the space character)

* alphanumeric passwords of length 7 (lower- and uppercase)

* alphanumeric passwords of length 8 (lowercase only)

SSTIC04-10k is a smaller table set (388MB) for machines having less than 500M of RAM.

*** This is why it's very important to have 15-character or longer passwords/phrases!! If your password now is 8 characters, just enter it twice. Sentences are easy to remember, something like "i hate long passwords" will beat any rainbow table.

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