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Virus:TR/Spy.148529
Date discovered:18/04/2010
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:148.529 Bytes
MD5 checksum:559f2d704f414c2848269f16f00f8cfa
IVDF version:7.10.06.116 - Sunday, April 18, 2010

 General Aliases:
   •  Sophos: Mal/EncPk-OD
   •  Bitdefender: Trojan.PWS.OnlineGames.KDKZ
   •  Panda: Trj/Gamania.MT
   •  Eset: Win32/PSW.Lineage.NIJ


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


Side effects:
   • 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 file:
   • %TEMPDIR%\bkhtgsf.reg



The following files are created:

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

%TEMPDIR%\gfgll.bat
%WINDIR%\Debug\xmlDown.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Meredrop.A.11155




It tries to executes the following files:

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


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


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

 Registry The following registry keys are added:

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

– [HKLM\SOFTWARE\Classes\CLSID\{42C50607-D944-41A9-9B67-720AFBE8C22C}\
   InProcServer32]
   • "@"="%WINDIR%\Debug\xmlDown.dll"
   • "ThreadingModel"="Apartment"

– [HKLM\SOFTWARE\Classes\CLSID\
   {42C50607-D944-41A9-9B67-720AFBE8C22C}]
   • "@"="url"

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

    Process name:
   • explorer.exe


 Miscellaneous String:
Furthermore it contains the following strings:
   • https://tw.gash.gamania.com/UpdateServiceAccountPassword.aspx?ServiceCode=600035
   • http://tw.gashcard.gamania.com/space.htm
   • https://tw.gash.gamania.com/UpdateMainAccountPassword.aspx
   • https://tw.beanfun.gamania.com/unlock_login/step2.aspx?d=
   • http://tw.mabinogi.gamania.com/Net2.0/Home/Default.aspx
   • http://tw.maplestory.gamania.com/Default.aspx
   • http://tw.gashcard.gamania.com/space.htm
   • https://tw.gash.gamania.com/GASHLogin.aspx
   • http://tw.gamania.com/GHOME/Home_Center.ASP

 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 Thursday, August 26, 2010
Description updated by Petre Galan on Thursday, August 26, 2010

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