full-disclosure - Microsoft EFS

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Message-ID: <434BAE5B.2080009@gmx.net>
Date: Tue Oct 11 13:21:56 2005
From: tuevsec at gmx.net (Thomas Springer)
Subject: Microsoft EFS

> The DEFAULT recovery agent is the Administrator, on the other hand you always 
> can to decrypt the data from the userX login like that userX; So crack the 
> password or overwrite it off-line (the same for the delegated recovery 
> agent).

be careful:

overwriting the pw offline will work with efs on w2k.
it will not work with winxp/2003: you cant access any efs-data after 
resetting the password offline.

you'll have to crack the usesrs or the admins pw and either logon 
interactively or export their keys to get access to the efs-encrypted data.

tom