full-disclosure - WehnTrust - When you have to trust Wehntrust

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Message-ID: <1192877198.20060116214705@Zoller.lu>
Date: Mon Jan 16 20:47:28 2006
From: Thierry at Zoller.lu (Thierry Zoller)
Subject: WehnTrust - When you have to trust Wehntrust

Dear  List,

Small blurp I came around; when Wehntrust creates the autostart key
it forgets to correctly quote the string in the key and thus may
trigger an autostart of c:\program.bat|exe|com up-on reboot... [2]

Quoting [1] :
^^^^^^^^^^^^
--------------------------------------------------------------------------
c:\program files\sub dir\program.exe,

In this case, the system will successively expand the string when
interpreting the file path, until a module is encountered to execute.
The string used in the above example would be interpreted as follows:

   c:\program.exe
   c:\program files\sub.exe
   c:\program files\sub dir\program.exe
-----------------------------------------------------------------------------

[1] http://lists.grok.org.uk/pipermail/full-disclosure/2005-November/038789.html
[2] Only a real issue in Windows 2000, WinXP restricted
    users don't have the right to write to c:\
[3] http://secdev.zoller.lu
[4] http://www.wehnus.com/

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