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Date discovered:19/06/2009
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:81.920 Bytes
MD5 checksum:d5833861893cd5ba15efd88bb91d1d8e
IVDF version:

 General Aliases:
   •  Sophos: Mal/Koobface-E
   •  Bitdefender: Trojan.Generic.4061407
   •  Panda: Adware/TotalPCDefender2010
   •  Eset: Win32/Koobface.NCX

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

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

 Files It copies itself to the following location:
   • %drive%\windows\bill110.exe

It overwrites a file.

It deletes the initially executed copy of itself.

The following file is created:


It tries to download some files:

– The locations are the following:
   •**********/?action=%character string%&v=%number%&crc=%number%
   •**********/?action=%character string%&a=%character string%&v=%number%&c_fb=%number%&ie=%character string%

– The location is the following:
   •**********/?getexe=%character string%

It tries to executes the following files:

– Filename:
   • %WINDIR%\bill110.exe

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

 Registry The following registry key is added in order to run the process after reboot:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "sysfbtray"="%WINDIR%\bill110.exe"

The following registry key is added:

– [HKCU\Software\Microsoft\Internet Explorer\Main]
   • "tp"="1000"

 Miscellaneous  Checks for an internet connection by contacting the following web site:

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

Description inserted by Petre Galan on Monday, August 9, 2010
Description updated by Petre Galan on Monday, August 9, 2010

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