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Date discovered:03/11/2009
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low to medium
Damage Potential:Low to medium
Static file:Yes
File size:143.360 Bytes
MD5 checksum:4882d3e22c4feb8d006cc162841d151a
IVDF version:

 General Method of propagation:
   • Autorun feature

   •  Mcafee: W32/Rimecud
   •  Sophos: W32/Autorun-AUZ
   •  Panda: W32/P2PWorm.EK.worm
   •  Eset: Win32/Peerfrag.EU
   •  Bitdefender: Worm.P2P.Palevo.B

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%\rundll32.exe

The following files are created:

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


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

–  [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Taskman"="%recycle bin%\%CLSID%\yv8g67.exe"

 Backdoor The following ports are opened:

– mp**********.ru on UDP port 444
– e7**********.cn on UDP port 444
– f5**********.com on UDP port 444

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

    Process name:
   • explorer.exe

 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, March 8, 2010
Description updated by Petre Galan on Monday, March 8, 2010

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