full-disclosure - Re: cloning PC / run in VMware

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Message-ID: <44C5FC46.9030601@gmail.com>
Date: Tue, 25 Jul 2006 13:11:02 +0200
From: Nicolas RUFF <nicolas.ruff@...il.com>
To: endrazine <endrazine@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: cloning PC / run in VMware

>> Don't tell me a simple greyed out checkbox can stop you ...
> ^---> foudstone's showwin.exe usually does the trick

Actually, it's a bit harder.

At export time, the Crypto provider will check the "non exportable"
flag, even if you have "ungreyed" the checkbox.

>>From here you have 2 choices :

- Searching for the private key blob in the process memory.

- Patching the Crypto provider to kill the check (harder, because of WFP
and some internal checksums inside Crypto providers - e.g. RSAENH.DLL).

I have not heard of any readily usable code on the Internet, but looking
at the slides it should not be too hard to reproduce.

Regards,
- Nicolas RUFF

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