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Re: [Wired Security/EOF] Disable Windows Defender(Vista) PoC code

 

 

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skyout.fd at wired-security

May 15, 2008, 2:33 PM

Post #1 of 2 (189 views)
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Re: [Wired Security/EOF] Disable Windows Defender(Vista) PoC code

On Wed, 14 May 2008 13:49:35 -0700, "Peter Ferrie" <peter.ferrie[at]gmail.com>
wrote:
>> my friend Izee from the EOF-Project(.net) team has coded a
>> simple PoC code, that demonstrates how to disable the Windows
>> Defender on Vista (tested with and without SPs on x86/x64)
>> using its own API made for it.
>
> Does he realise that he must be Admin first?
> Then he he can just disable the service, or delete the files, or
whatever.
> Using the API doesn't gain much here.
>

the thing is, that microsoft says, that ONLY SIGNED processes can do this,
this
is a lie, nothing more and in my oppinion this opens an attack vector and
provides
common insecurity...

cheers,
skyout

ps: http://msdn.microsoft.com/en-us/library/bb762466(VS.85).aspx | read
remarks

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fdiggle at gmail

May 16, 2008, 9:31 AM

Post #2 of 2 (153 views)
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Re: [Wired Security/EOF] Disable Windows Defender(Vista) PoC code [In reply to]

Fredrick Diggle's code was signed by Fredrick Diggle himself. How much
more credibility do you want?

On Fri, May 16, 2008 at 7:33 AM, <skyout.fd[at]wired-security.net> wrote:
>
>
>
> On Wed, 14 May 2008 13:49:35 -0700, "Peter Ferrie" <peter.ferrie[at]gmail.com>
> wrote:
>>> my friend Izee from the EOF-Project(.net) team has coded a
>>> simple PoC code, that demonstrates how to disable the Windows
>>> Defender on Vista (tested with and without SPs on x86/x64)
>>> using its own API made for it.
>>
>> Does he realise that he must be Admin first?
>> Then he he can just disable the service, or delete the files, or
> whatever.
>> Using the API doesn't gain much here.
>>
>
> the thing is, that microsoft says, that ONLY SIGNED processes can do this,
> this
> is a lie, nothing more and in my oppinion this opens an attack vector and
> provides
> common insecurity...
>
> cheers,
> skyout
>
> ps: http://msdn.microsoft.com/en-us/library/bb762466(VS.85).aspx | read
> remarks
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> Hosted and sponsored by Secunia - http://secunia.com/
>

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

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