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Re: Re: Bypassing Personal Firewall (Zone AlarmPro)Using DDE-IPC
From: Thierry Zoller <Thierry () sniff-em com>
Date: Sat, 1 Oct 2005 21:12:54 +0200

Dear Florian,

FW> If I understand things correctly, in the attack Thierry describes, you
FW> don't send window messages to windows of the Zone Alarm process (which
FW> might be protected indeed), but to the Internet Explorer windows.
Exactly, the "attack" abuses the fact that windows has no authentication of the
window messages in the queue (in other words it doesn't know WHO send
the message, the APP or the USER in front of the PC). Not knowing who
send the message it happily executes it.

-> WindowsKEY + R
-> TYPE iexplore.exe
-> Press ENTER
-> Send Windowhide
Use your imagination from here on.

-- 
Thierry Zoller
mailto:Thierry () sniff-em com


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