Date: Fri, 11 Nov 2011 16:42:40 +0100 From: rootkit rootkit <rootkit77@...il.com> To: john-users@...ts.openwall.com Subject: NTLM challenge/response cracking (again...) Hello list, I have a few NTLM C/R proxy authentications sniffed with ettercap and I'm trying to crack them. They look like the usual: user:::LM:NTLM:CHALLENGE The challenge changes every time as this is just a sniff. Information on this topic are very difficult to find. At the beginning I was thinking about generating rainbow tables for each different CHALLENGE, but that would be really too much. I then came across this very useful post from Alex http://www.openwall.com/lists/john-users/2010/07/09/1 However there's something I don't understand: does the NETLM cracking work only if the challenge is 1122334455667788? Would it work for any challenge? I'm asking this because I tried to crack my own account (of which I know the password) using a dictionary with my password in it, and it didn't work. And it did not work with brute force either. Thanks.
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