NT password cracker. from the doc: 'a tool for
turning Microsoft LANMAN and NT password hashes
back into the original clear text passwords. The
program does this using dictionary cracking and
also brute force. L0phtCrack 1.5 returns not just
the LANMAN passord but the NT password up to 14
characters in length. Version 1.0 of L0phtCrack
was deficient because the graphical version of the
program did not support the brute force method.
This has been fixed for version 1.5. The brute
force efficiency has been improved and an option
to select the character set that makes up the
password has been added. The default behavior of
L0phtCrack is to do a dictionary attack on the
password file and then brute force the remaining
uncracked passwords. Sample password files are
named pwfile.txt, pwfile2.txt, pwfile3.txt and
pwfile4.txt. A 28000 word dictionary file is
included named wfile.txt. You can dump passwords
directly from L0phtCrack if you have administrator
rights. L0phtCrack 1.5 includes the ability to
dictionary attack or brute force the network NT
server challenge that is used to prevent the OWF
from going across the wire in its plaintext
format. Sample network sniffed challenges are in
files sniff.txt and sniff2.txt. This means you can
get NT passwords without administrator privileges
if you have network access between the client and
the server. You can build the sniff files by hand
using your favorite network analyzer or wait for
our tool which sniffs the network and builds these
files. The sniffing tool will be made available
shortly.'