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Virus:TR/Buzus.clqr.9
Date discovered:23/11/2009
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Low to medium
Static file:Yes
File size:32.256 Bytes
MD5 checksum:0708f1d10ef77bdb27339913a4483e13
IVDF version:7.10.01.47 - Monday, November 23, 2009

 General Method of propagation:
   • Autorun feature


Aliases:
   •  Mcafee: W32/Palack.worm
   •  Panda: Trj/Buzus.LF
   •  Eset: Win32/Agent.HXW
   •  Bitdefender: Trojan.Generic.2653173


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


Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %drive%\RECYCLER\%CLSID%\pqlmq.exe



The following files are created:

%drive%\autorun.inf This is a non malicious text file with the following content:
   • %code that runs malware%

%drive%\RECYCLER\%CLSID%\Desktop.ini

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

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "12CFG515-K641-55SF-N66P"="%recycle bin%\%CLSID%\pqlmq.exe"

 Injection – It injects itself as a remote thread into a process.

    Process name:
   • explorer.exe


 Miscellaneous Internet connection:

It queries with the name:
   • orts.alwaysproxy4.info

 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 Thursday, April 8, 2010
Description updated by Petre Galan on Thursday, April 8, 2010

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