Dave,
I did a paper on password crackers against Windows a few months ago and
looked at all the different password tools I could find. I found about
20 of them. Most are resetters and most only reset local SAM accounts.
Only two, Lophtcrack and Windows XP/2000/NT Key can do domain account
manipulation. Lophtcrack is the best choice of course, if you can afford
it (although strangely their tech support/marketing folks did not reply
to my email queries). But even Lophtcrack needs NTLM or LM hashes to
crack...NTLMv2 hashes are too strong. The other choice, Windows
XP/2000/NT Key, http://www.lostpassword.com/windows-xp-2000-nt.htm, is a
commercial password resetter product. It needs Windows install boot
diskettes to work, but claims to reset domain administrator passwords,
too. Works with Windows Server 2003. I didn't test it though so I can't
vouch for its accuracy.
If all you need is to get access, a resetter will work fasters and
better than a cracker. Unfortunately, in both cases the solution is
commercial.
Good luck with your problem. Please let me know how it turns out.
Roger
************************************************************************
***
*Roger A. Grimes, Banneret Computer Security, Computer Security
Consultant
*CPA, CISSP, MCSE: Security (NT/2000/2003/MVP), CNE (3/4), CEH, CHFI
*email: roger@banneretcs.com
*cell: 757-615-3355
*Author of Malicious Mobile Code: Virus Protection for Windows by
O'Reilly
*http://www.oreilly.com/catalog/malmobcode
*Author of Honeypots for Windows (Apress)
*http://www.apress.com/book/bookDisplay.html?bID=281
************************************************************************
****
-----Original Message-----
From: Dave Dyer [mailto:ddyer@enspherics.com]
Sent: Tuesday, January 25, 2005 12:17 PM
To: 'the.soylent'; ddyer@ciber.com
Cc: security-basics@securityfocus.com
Subject: RE: ntds.dit, john and pwdump2
Hey Soylent, thanks for the tip on Cain. Nice tool. However, for
future information, it wants a hashed txt file to crack as well. It's
looking like the only way to do this is to run pwdump2 on a syskey'd
volume and export it to a file that you can then crack using l0pht, john
or cain.
Thanks for all the help.
dd
-----Original Message-----
From: the.soylent [mailto:the.soylent@gmail.com]
Sent: Monday, January 24, 2005 11:22 AM
To: ddyer@ciber.com
Cc: security-basics@securityfocus.com
Subject: Re: ntds.dit, john and pwdump2
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*** Signer: soylent (the.soylent) <the.soylent@gmail.com> (0x10BDD9C8)
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hi!
have you tried cain?
in the online-manuel (http://www.oxid.it/ca25um/) theres the talk of a
cracker and a converter
here`s the link -> http://www.oxid.it/cain.html
cheers, soylent
Dave Dyer schrieb:
| Hello List,
|
| I am cracking a password file for a client, and have a copy of the
NTDS.DIT
| file from a domain controller (win2k/Active Directory). We do not have
| access to L0phtcrack currently, and I'm on a deadline. I was going to
| use John the Ripper with some plugins written by 3rd parties to crack
| the password file, but apparently the NTDS.DIT file isn't really a
| hashed file that John can read
|
| After some research, I found that you can use PWDUMP2 to actually
export the
| user/pw information on the DC to a hashed file that you can then crack
with
| John (even if syskey is used after SP2). However, in order for PWDUMP
| to work, you have to run it as an administrator from the DC itself,
| where it injects its own .dll into the lsass.exe process, which I no
| longer have access to. My question is this:
|
| Does anyone know if there is a way to extract the user/pw information
| from the NTDS.DIT file (rather than from lsass.exe on the server) into
| a hashed file that I can then crack with John?
|
| If not, does anyone have any other suggestions on what I can do with
| this NTDS.DIT file to crack it?
|
| Thanks in Advance,
|
| dave
|
| ***********
|
| Dave Dyer
|
| <mailto:ddyer@enspherics.com <mailto:ddyer@enspherics.com> >
|
| "So you'll bring experts in to water the company's plants but you'll
do the
| security thing yourself?"
|
| -QinetiQ in the Financial Times
|
|
|
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