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Date discovered:21/06/2010
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:45.056 Bytes
MD5 checksum:df3116984477a0ff3658f470b0d3a299
IVDF version:

 General Aliases:
   •  Bitdefender: Worm.Generic.254227
   •  Panda: W32/Brontok.KZ.worm
   •  Eset: Win32/AutoRun.VB.QI

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:
   • %HOME%\Administrator1\winlogon.exe

It tries to download some files:

– The location is the following:

– The locations are the following:

It tries to execute the following file:

– Filename:
   • "C:\Documents and Settings\Administrator\Administrator1\winlogon.exe"

 Registry The following registry keys are added in order to run the processes after reboot:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "NVIDIA Media Center Library"="%HOME%\Administrator1\winlogon.exe"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "NVIDIA Media Center Library"="%HOME%\Administrator1\winlogon.exe"

 File details Programming language:
The malware program was written in Visual Basic.

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 Tuesday, October 26, 2010
Description updated by Petre Galan on Tuesday, October 26, 2010

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