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Virus:Worm/SdBot.160256.1
Date discovered:20/07/2008
Type:Worm
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Low to medium
Static file:Yes
File size:160.256 Bytes
MD5 checksum:03f59ce978c42946ca3e66d4f5be6793
IVDF version:7.00.05.141 - Sunday, July 20, 2008

 General Method of propagation:
    Autorun feature


Aliases:
   •  Mcafee: W32/IRCbot.gen.aj
   •  Sophos: W32/Autorun-AWV
   •  Panda: Trj/Agent.NJJ
   •  Eset: Win32/Peerfrag.EC
   •  Bitdefender: Worm.Generic.218792


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%\MsMxEng.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:

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

 Backdoor The following ports are opened:

di**********.cn on UDP port 44460
fr**********.com on UDP port 44460
an**********.com on UDP port 44460

 Injection It injects itself as a remote 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 Wednesday, April 7, 2010
Description updated by Petre Galan on Wednesday, April 7, 2010

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