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Virus:Worm/Koobface.40960D
Date discovered:01/02/2010
Type:Worm
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low
Static file:Yes
File size:40.960 Bytes
MD5 checksum:0663ffb6fa3e7195a10e30e3317df9fd
IVDF version:7.10.03.145 - Monday, February 1, 2010

 General Aliases:
   •  Panda: W32/Koobface.GI.worm
   •  Eset: Win32/Koobface.NCL
   •  Bitdefender: Trojan.Generic.IS.131893


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


Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %WINDIR%\pp14.exe



It deletes the initially executed copy of itself.



It deletes the following file:
   • %WINDIR%\dxxdv34567.bat



The following files are created:

%WINDIR%\dxxdv34567.bat Furthermore it gets executed after it was fully created. This batch file is used to delete a file.
%WINDIR%\fdgg34353edfgdfdf



It tries to executes the following files:

– Filename:
   • %WINDIR%\pp14.exe %malware execution directory%\%executed file%


– Filename:
   • cmd /c %WINDIR%\dxxdv34567.bat

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

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "pp"="%WINDIR%\pp14.exe"

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

Descrição enviada por Petre Galan em quarta-feira, 7 de abril de 2010
Descrição atualizada por Petre Galan em quarta-feira, 7 de abril de 2010

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