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Date discovered:04/03/2009
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:11.776 Bytes
MD5 checksum:ed3a1d749f08bdefb484c38c572c8831
IVDF version:

 General Aliases:
   •  Mcafee: W32/Koobface.worm.gen.e
   •  Sophos: W32/Koobfa-Gen
   •  Panda: W32/Koobface.AW.worm
   •  Eset: Win32/Koobface.NAY
   •  Bitdefender: Win32.Worm.Koobface.AO

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Downloads a malicious file
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %WINDIR%\pp1.exe

The following file is created:

%WINDIR%\9gdfgjf23 This is a non malicious text file with the following content:
   • %code that runs malware%

It tries to download a file:

– The locations are the following:
At the time of writing this file was not online for further investigation.

 Registry One of the following values is added in order to run the process after reboot:

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "pp"="%WINDIR%\pp1.exe"

 File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Description insérée par Petre Galan le lundi 15 mars 2010
Description mise à jour par Petre Galan le lundi 15 mars 2010

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