Penetration Testing mailing list archives

RE: L0phtcrack


From: Ockens Thomas <Thomas.Ockens () med siemens de>
Date: Tue, 18 Sep 2001 19:33:39 +0200

I'm not sure of JtR will do both Lan Manager hashes and NT 
hashes, like LC3.
It does Lan Manager hashes, though.

I have not seen JtR unpatched[1] come up with 'NT passwords' yet (the
case-sensitive kind), but I use vanilla JtR in conjunction with Cain[2] -
have JtR crack the LanMan hash, spit out all-uppercase password.
Start up Cain, import the pwdump-formatted file that JtR works on into the
SMB tab (kind of intuitive, eh?), right-click the account in question, and
choose 'test password'.
A dialog box appears, allowing you to enter the case-insensitive password
you just received from JtR.  The NTLM equivalent, be it uppercase, lowercase
or mixed case, will then appear to the right of the LanMan password.

I reckon this is kind of useless when you don't get any lanman hashes flying
over the wire, or can't pwdump them for any reason, but it's neat to get the
case of a given password real fast, without having to worry about lockout or
any such nastiness.


thomas
------
[1] NTLM patch available @
http://labs.defcom.com/releases/john-ntlm/john-ntlm-patch-v01.tar.gz
[2] Cain available @ http://www.oxid.it

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