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Date discovered:18/04/2010
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:147.654 Bytes
MD5 checksum:e88969c1f746337c830d7fe0f7a2d46f
IVDF version:

 General Aliases:
   •  Sophos: Mal/EncPk-OD
   •  Bitdefender: Trojan.PWS.Onlinegames.KDNH
   •  Panda: Trj/Lineage.LMQ
   •  Eset: Win32/PSW.Lineage.NIJ

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:
   • %SYSDIR%\xmloder.exe

It deletes the initially executed copy of itself.

It deletes the following files:
   • %TEMPDIR%\tpepd.bat
   • %TEMPDIR%\ivrmsnn.reg

The following files are created:

%TEMPDIR%\ivrmsnn.reg This is a non malicious text file with the following content:
   • %code that runs malware%

%TEMPDIR%\tpepd.bat Furthermore it gets executed after it was fully created. This batch file is used to delete a file.
%WINDIR%\Debug\xmlDown.dll Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.Magania.dcak

It tries to download some files:

– The location is the following:

– The location is the following:

It tries to execute the following files:

– Filename:
   • cmd /c %TEMPDIR%\tpepd.bat

– Filename:
   • regedit /s %TEMPDIR%\ivrmsnn.reg

– Filename:
   • cmd /c erase /F %executed file%

 Registry The following registry keys are added:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\
   • "{42C50607-D944-41A9-9B67-720AFBE8C22C}"=""

– [HKLM\SOFTWARE\Classes\CLSID\{42C50607-D944-41A9-9B67-720AFBE8C22C}\
   • "@"="%WINDIR%\Debug\xmlDown.dll"
   • "ThreadingModel"="Apartment"

   • "@"="url"

 Injection –  It injects the following file into a process: %WINDIR%\Debug\xmlDown.dll

    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 Friday, September 17, 2010
Description updated by Petre Galan on Friday, September 17, 2010

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