full-disclosure - Re: Genetic method to detect the presence of anyvirtual machine

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Date: Thu, 19 Oct 2006 20:29:02 +0100
From: "Dave \"No, not that one\" Korn" <davek_throwaway@...mail.com>
To: full-disclosure@...ts.grok.org.uk
Cc: bugtraq@...urityfocus.com
Subject: Re: Genetic method to detect the presence of
	anyvirtual machine

Bipin Gautam wrote:
> Microsoft Virtual Machine & VMWARE information disclosure
> Vulnerability
>
> Note: Though not limited to these two products, this trick can be used
> as  an genetic method to detect the presence of any virtual machine

  Gene*R*ic.  The word you're looking for is "generic".  Genetic means to do 
with DNA and stuff.  Generic means universal, widespread, non-branded.

> (Query Output inside Microsoft Virtual Machine)

> Motherboard:
> Company Brnad Name: Vmware, Inc VMware
>
> Video Chipset & Video Memory information
>
> System Manufacturer : VMware, Inc
> Product Name: VMware Virtual Platform

> ( Output inside VMWARE )

> Company Brnad Name: Microsoft Corporation Virtual Machine

> Motherboard Modal: Microsoft Corporation Virtual Machine

  I think you got the two sets of query outputs mixed up as well.

> Quering just few of the above mentioned information from inside the
> virtual machine can IMMIDIATELY PROVE the presense of virtual machine,
> not the actual system.

  True.  Is it possible to change them, short of binary patching the vm 
executable?

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today.... 

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