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Virus:TR/PSW.Magania.efln
Date discovered:16/02/2011
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:199.680 Bytes
MD5 checksum:bc6674796fd2923d4feafa0207698a35
VDF version:7.10.08.215
IVDF version:7.11.03.121 - Wednesday, February 16, 2011

 General Aliases:
   •  Kaspersky: Trojan-GameThief.Win32.Magania.efln
   •  Sophos: Troj/PWS-BPN
   •  Bitdefender: Trojan.Generic.KDV.93919
   •  Panda: W32/Lineage.LJL
     GData: Trojan.Generic.KDV.93919


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


Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %SYSDIR%\SYO0zxc.exe



It deletes the initially executed copy of itself.



The following files are created:

%SYSDIR%\SYO0szxc10.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Agent.bq.138

%SYSDIR%\SYO0szxc20.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Agent.bq.139




It tries to execute the following file:

Filename:
   • %SYSDIR%\regsvr32.exe /s %SYSDIR%\SYO0szxc20.dll

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "SYO0sos"="%SYSDIR%\SYO0zxc.exe"



The following registry keys are added:

[HKLM\SOFTWARE\Classes\CLSID\{94AC7942-7BE1-4FB9-A7CA-67CD88362758}\
   VersionIndependentProgID]
   • "@"="IEHlprObj.IEHlprObj"

[HKLM\SOFTWARE\Classes\CLSID\{94AC7942-7BE1-4FB9-A7CA-67CD88362758}\
   InprocServer32]
   • "@"="%SYSDIR%\SYO0szxc20.dll"
   • "ThreadingModel"="Apartment"

[HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1]
   • "@"="IEHlprObj Class"

[HKLM\SOFTWARE\Classes\TypeLib\
   {94AC7948-7BE1-4FB9-A7CA-67CD88362758}\1.0\0\win32]
   • "@"="%SYSDIR%\SYO0szxc20.dll"

[HKLM\SOFTWARE\Classes\TypeLib\
   {94AC7948-7BE1-4FB9-A7CA-67CD88362758}\1.0]
   • "@"="IEHelper 1.0 Type Library"

[HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer]
   • "@"="IEHlprObj.IEHlprObj.1"

[HKLM\SOFTWARE\Classes\CLSID\
   {94AC7942-7BE1-4FB9-A7CA-67CD88362758}]
   • "@"="IEHlprObj Class"

[HKLM\SOFTWARE\Classes\Interface\
   {94AC7941-7BE1-4FB9-A7CA-67CD88362758}\TypeLib]
   • "@"="{94AC7948-7BE1-4FB9-A7CA-67CD88362758}"
   • "Version"="1.0"

[HKLM\SOFTWARE\Classes\Interface\
   {94AC7941-7BE1-4FB9-A7CA-67CD88362758}\ProxyStubClsid]
   • "@"="{00020424-0000-0000-C000-000000000046}"

[HKLM\SOFTWARE\Classes\CLSID\{94AC7942-7BE1-4FB9-A7CA-67CD88362758}\
   ProgID]
   • "@"="IEHlprObj.IEHlprObj.1"

[HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj]
   • "@"="IEHlprObj Class"

[HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID]
   • "@"="{94AC7942-7BE1-4FB9-A7CA-67CD88362758}"

[HKLM\SOFTWARE\Classes\Interface\
   {94AC7941-7BE1-4FB9-A7CA-67CD88362758}]
   • "@"="IIEHlprObj"

[HKLM\SOFTWARE\Classes\TypeLib\
   {94AC7948-7BE1-4FB9-A7CA-67CD88362758}\1.0\HELPDIR]
   • "@"="%SYSDIR%\"

[HKLM\SOFTWARE\Classes\TypeLib\
   {94AC7948-7BE1-4FB9-A7CA-67CD88362758}\1.0\FLAGS]
   • "@"="0"

[HKLM\SOFTWARE\Classes\Interface\
   {94AC7941-7BE1-4FB9-A7CA-67CD88362758}\ProxyStubClsid32]
   • "@"="{00020424-0000-0000-C000-000000000046}"

 Injection – It injects a backdoor routine 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 Petre Galan on Friday, April 15, 2011
Description updated by Petre Galan on Friday, April 15, 2011

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