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Date: Tue, 12 May 2009 10:25:17 -0500
From: jmk <jmk@...fus.net>
To: john-users@...ts.openwall.com
Subject: Re: Cracking Metasploit SMB stuff...
On Fri, 2009-04-24 at 15:44 -0300, nahuel.grisolia@...il.com wrote:
> Hey list, i'm trying to crack this:
>
> Captured 192.168.2.138:1597 DOMAIN\user
> LMHASH:8885a28be8a72ca650bd65069ca4a3f4a5de1c918778d28f
> NTHASH:3a948718e031f88063d9925152ab2b5e010100000000000005f1c89ff1c4c901a5de1c918778d28f00000000020000000000000000000000
> OS:Windows 2002 Service Pack 3 2600 LM:Windows 2002
> 5.1
>
> i dont know which format should i use this time... i've already read all the
> _fmt.c but with no luck... any ideas? i know the cleartext password, if it
> can help tell me... thanx a lot.
Nahuel,
I'm a bit rusty on this, but here goes...
What you have there should be a LMv2 and a NTLMv2 challenge/response.
The John "NETLMv2" format can perform a brute-force crack against the
LMv2 set. The first 16 bytes of your "LMHASH" value should be the client
response and the next 8 are its challenge. You will also need the server
challenge issued by Metasploit, which I'm assuming was 1122334455667788.
The format of the file should then be as follows:
USERNAME::DOMAIN:SERVER CHALLENGE:LMv2 RESPONSE:CLIENT CHALLENGE
Using your data, you have:
user::DOMAIN:1122334455667788:8885a28be8a72ca650bd65069ca4a3f4:a5de1c918778d28f
Joe
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