Virus:TR/PSW.Magania.azha
Date discovered:21/04/2009
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low
Static file:Yes
File size:108.855 Bytes
MD5 checksum:98221cfe63bb832de9ce9a3ad44384ff
IVDF version:7.01.03.80 - Tuesday, April 21, 2009

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Symantec: Trojan.Packed.NsAnti
   •  Kaspersky: Trojan-GameThief.Win32.Magania.azha
   •  F-Secure: Trojan-GameThief.Win32.Magania.azha
   •  Panda: W32/Lineage.KSZ
   •  Eset: Win32/PSW.OnLineGames.NMY
   •  Bitdefender: Trojan.PWS.OnlineGames.KBXH


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Downloads a file
   • Drops a file
   • Drops malicious files
   • Registry modification
   • Steals information

 Files It copies itself to the following locations:
   • %SYSDIR%\olhrwef.exe
   • C:\ej10fkdo.bat



It deletes the initially executed copy of itself.



The following files are created:

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

– %SYSDIR%\drivers\klif.sys Further investigation pointed out that this file is malware, too. Detected as: RKit/OnlineGames.CG.1

– %SYSDIR%\nmdfgds0.dll Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.Wow.ife

 Registry The following registry keys are added in order to load the service after reboot:

– [HKLM\SYSTEM\ControlSet001\Services\KAVsys]
   • Type=dword:00000001
   • ErrorControl=dword:00000001
   • Start=dword:00000001
   • ImagePath="\??\%SYSDIR%\drivers\klif.sys"

 Injection – It injects itself into a process.

    Process name:
   • explorer.exe


 File details Programming language:
 The malware program was written in MS Visual C++.


Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Description inserted by Andreas Feuerstein on Wednesday, May 6, 2009
Description updated by Andreas Feuerstein on Wednesday, May 6, 2009

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