[Vol-users] Memory Imaging Using Firewire

AAron Walters awalters at 4tphi.net
Tue Jul 8 15:28:31 CDT 2008


evb,

There a number of potential techniques that are being used to deal with 
locked machines.  Though I must give my usual caveats that I would make 
sure you know what you are doing and actually have experience with the 
acquisition method before trying it as part of a real investigation. 
Some of the techniques are hardware dependent, have the potential to BSOD 
the machine, or are potentially destructive, so you may only get one 
attempt. In some instances, it may be useful to get outside help.

As Jim and Jamie mentioned, performing acquisition via firewire is a 
potential option.  Details about this technique can be found on the follow 
site: http://storm.net.nz/projects/16.  They even mention using a CardBus 
firwire card. Others have successfully used techniques similar to those 
presented in the Cold Boot paper (http://citp.princeton.edu/memory/) or 
similarly, msramdmp: (http://mcgrewsecurity.com/projects/msramdmp/). 
Depending on how the laptop is configured, the hibernation file is another 
alternative.  There are also other hardware solutions but they are very 
expensive.

Regards,

AW

On Tue, 8 Jul 2008, Jim Gordon wrote:

>
> I know that Jon Evans at Gwent Police in the UK has demonstrated this
> method.  I'll be amazed if Jon doesn't subscribe to this list and so may be
> able to give some more info.
>
> More info can be found here:
>
> http://forums.remote-exploit.org/archive/index.php/t-13922.html
>
> The method utilises Adam Boileau's Winlockpwn tool.  Adam's Pythonraw tool
> is available on Helix.  http://www.e-fense.com/helix/downloads.php
>
> If I recall one "slight" issue with this method is the tendency to BSOD.  To
> quote Keith Lockhart at Access Data  "This is a Bad thing!"
>
> Jim
>
>
>
>
> On 8/7/08 18:00, "vol-users-request at volatilityfoundation.org"
> <vol-users-request at volatilityfoundation.org> wrote:
>
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>> Today's Topics:
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>>    1. RE: Memory imaging (Jamie Levy)
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>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 7 Jul 2008 14:57:33 -0400
>> From: "Jamie Levy" <jamie.levy at gmail.com>
>> Subject: RE: [Vol-users] Memory imaging
>> To: vol-users at volatilityfoundation.org
>> Message-ID:
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>> Content-Type: text/plain; charset=ISO-8859-1
>>
>> Hi evb,
>>
>> I'm not sure, but maybe this will help (maybe someone else on here
>> knows better than I do):
>>
>> http://computer.forensikblog.de/en/2008/02/acquisition_5_firewire.html
>>
>> I've never tried memory acquisition using firewire, but it sounds like
>> it might be worth a try.
>>
>> All the best,
>>
>> -Jamie
>>
>>
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