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Virus:TR/Vaklik.krs
Date discovered:18/04/2011
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:197.632 Bytes
MD5 checksum:6651b1bda6a059855512989a360df4db
VDF version:7.11.06.148 - Monday, April 18, 2011
IVDF version:7.11.06.148 - Monday, April 18, 2011

 General Aliases:
   •  Mcafee: PWS-OnlineGames.a
   •  Kaspersky: Trojan.Win32.Vaklik.krs
   •  Bitdefender: Trojan.Generic.KDV.196852
     GData: Trojan.Generic.KDV.196852


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


Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %SYSDIR%\arking.exe



It deletes the initially executed copy of itself.



The following file is created:

%SYSDIR%\arking0.dll Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.Frethog.F.41




It tries to execute the following file:

Filename:
   • %PROGRAM FILES%\Internet Explorer\IEXPLORE.EXE

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "King_ar"="%SYSDIR%\arking.exe"

 Injection –  It injects the following file into a process: %SYSDIR%\arking0.dll

    Process name:
   • explorer.exe



It injects itself as a remote thread into a process.

    Process name:
   • iexplore.exe


 Miscellaneous Accesses internet resources:
   • http://www.baiduqw3.com/1mg/**********

 File details Programming language:
The malware program was written in MS Visual C++.


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 Wednesday, July 13, 2011
Description updated by Petre Galan on Wednesday, July 13, 2011

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