From: Ron (ronskullsecurity.net)
Date: Thu Jul 09 2009 - 15:06:19 CDT

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Hernandez IV, Miguel wrote:
> All,
>
> Looking for a reference that describes the format of the windows SAM
> file. From what I can tell, the first column is the username and third
> column is the password hash, but I want to know what information is
> contained in the other columns. Google searches on "format windows SAM
> file", "understand windows SAM file", and other related searches have
> proved frustrating. I should mention that the SAM file was obtained
> using pwdump6 in case that is relevant. The format I am seeing is as
> follows:
>
> Username:number:password hash:another hash?:blank:blank:blank
>
> Any help is much appreciated.
>
> Miguel

Hi Miguel,

There's no "standard" format, but the format that's most often used (by
pwdump and fgdump, for example) is:

username:rid:lanman:ntlm:::

rid is basically the user id on the system -- 500 = admin, 501 = guest,
1000+ = standard users.

lanman and ntlm are two different types of hashes -- lanman is weak,
ntlm is reasonable.

I'm not sure what, if anything the last three spots are.

Hope that helps!

Ron

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