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Date discovered:21/06/2010
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:110.594 Bytes
MD5 checksum:673da79373984cff308a9c23380f9183
IVDF version: - Monday, June 21, 2010

 General Aliases:
   •  Sophos: W32/Palevo-Z
   •  Bitdefender: Rootkit.37359
   •  Panda: W32/P2PWorm.NW
   •  Eset: Win32/AutoRun.AEN

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

Side effects:
   • Downloads malicious files
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %HOME%\Application Data\yaptm.exe

It deletes the initially executed copy of itself.

The following files are created:

%temporary internet files%\g2g2_net[1].htm This is a non malicious text file with the following content:
   • %code that runs malware%

%temporary internet files%\out[1].exe

It tries to download some files:

– The location is the following:
   • http://www.g2g**********.net/

– The location is the following:
   • http://soufibilal.org/**********

It tries to execute the following files:

– Filename:
   • "%PROGRAM FILES%\Internet Explorer\IEXPLORE.EXE" -nohome

– Filename:
   • C:\Temp\240021.exe

 Registry The values of the following registry key are removed:

The values of the following registry keys are removed:

–  [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • Taskman

The following registry key is changed:

– [HKLM\SOFTWARE\Classes\TypeLib\
   New value:
   • "@"="oleacc.dll"

 Backdoor The following ports are opened:

– sam.cha**********.com on UDP port 1293
– cha**********.com on UDP port 1293
– jus**********.com on UDP port 1293

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

    Process name:
   • explorer.exe

 Miscellaneous Mutex:
It creates the following Mutex:
   • TgeI+21

 File details Programming language:
The malware program was written in Visual Basic.

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) среда, 20 октября 2010 г.
Описание обновил Petre Galan в(о) среда, 20 октября 2010 г.

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