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Date discovered:22/03/2010
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Low to medium
Static file:Yes
File size:79.872 Bytes
MD5 checksum:fc8cc530bd25de226b71db6edad47a1b
VDF version:
IVDF version: - Monday, March 22, 2010

 General Method of propagation:
    Autorun feature
   • Peer to Peer

   •  Sophos: W32/Autorun-BBI
   •  Panda: Bck/PCClient.KF
   •  Eset: Win32/Peerfrag.BL
   •  Bitdefender: Trojan.Dropper.Agent.UWC

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

Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following locations:
   • %recycle bin%\%CLSID%\wnzip32.exe
   • %drive%\RECYCLER\autorun.exe

The following files are created:

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

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

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Taskman"="%recycle bin%\%CLSID%\wnzip32.exe"

 P2P In order to infect other systems in the Peer to Peer network community the following action is performed:   It retrieves shared folders by querying the following registry keys:
   • Software\BearShare\General
   • Software\iMesh\General
   • Software\Shareaza\Shareaza\Downloads
   • Software\Kazaa\LocalContent
   • Software\DC++
   • Software\eMule
   • Software\Microsoft\Windows\CurrentVersion\Uninstall\eMule Plus_is1

   It searches for directories that contain the following substring:
   • \Local Settings\Application Data\Ares\My Shared Folder

 Messenger It is spreading via Messenger. The characteristics are described below:

 MSN Messenger

The URL then refers to a copy of the described malware. If the user downloads and executes this file the infection process will start again.

 Backdoor The following ports are opened:

mails.leb**********.com on UDP port 8118
mails.nad**********.org on UDP port 8118
mails.cli**********.net on UDP port 8118

 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.

Описание добавил Petre Galan в(о) пятница, 21 мая 2010 г.
Описание обновил Andrei Ivanes в(о) пятница, 4 июня 2010 г.

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