Trojan-GameThief.Win32.OnLineGames.blup

Technical Details

This Trojan belongs to the family of Trojans that steals passwords from online gaming user accounts. It is a Windows application (PE EXE file). It is 15 648 bytes in size. It is packed using UPX. The unpacked file is approximately 214 KB in size. It is written in C++.

Payload

Once launched, the Trojan performs the following actions:

• For the following files:

  %System%\sfc_os.dll
  %System%\rundll32.exe
  

  the Trojan creates copies, which it saves under the following names respectively:

  %System%\mmsfc1.dll
  %System%\gth60338.exe
  

• A function in the "mmsfc1.dll" library disables protection for the "ComRes.dll" file in the Windows system directory.
• It moves the file:

  %System%\ComRes.dll

  into the file called:

  %System%\sysgth.dll

• It extracts the following files from its body:

  %WinDir%\fOntS\ComRes.dll

  This file is 160 752 bytes in size. It is detected by Kaspersky Anti-Virus as Trojan-GameThief.Win32.OnLineGames.uvzj.

  %WinDir%\fOntS\gth60338.ttf

  This file is 29 696 bytes in size. It is detected by Kaspersky Anti-Virus as Trojan-GameThief.Win32.OnLineGames.uwbl.

  %WinDir%\fOntS\gth60338.fon

  This file is 1312 bytes in size.

  %System%\ComRes.dll

  This file is 160 752 bytes in size. It is detected by Kaspersky Anti-Virus as Trojan-GameThief.Win32.OnLineGames.uvzj.
• It terminates the following process:

  DNF.exe

• It launches the following command:

  %System%\gth60338.exe %WinDir%\fOntS\ComRes.dll ins <path_to_original_body_of_trojan>

  which in turn launches the file "ComRes.dll" and calls a function called "ins", which passes the path to the original body of the Trojan as a parameter.
  
  

  Removal instructions

  If your computer does not have antivirus protection and has been infected by this malicious program, follow the instructions below to delete it:

  1. Use Task Manager to terminate the Trojan process.
  2. Delete the original Trojan file (its location will depend on how the program originally penetrated the infected computer).
  3. Delete the following files:

     %System%\mmsfc1.dll
     %System%\gth60338.exe
     %System%\ComRes.dll
     %WinDir%\fOntS\ComRes.dll
     %WinDir%\fOntS\gth60338.ttf
     %WinDir%\fOntS\gth60338.fon
     

  4. Rename the file:

     %System%\sysgth.dll

     in the file:

     %System%\ComRes.dll

  5. Perform a full scan of the computer using Kaspersky Anti-Virus with up-to-date antivirus databases (download a trial version).
  
  

  MD5: BBD63347DEFE78335BA943A3D0AC4980
  SHA1: ADACC83C5BC638791B8783359D082FA30C1FF4C3

  
  

Summary

• Trojan-GameThief. Steals confidential information from games

Technical details

The main file is a Windows application (PE EXE file). File size of 15648 bytes.

Installation

Creates files on the victim machine

Malicious activity

Steals A malicious program designed to steal accounts (login and password) and other information used to access multi-player games. The stolen information is sent to a cybercriminal via email, ftp, the web or other methods. The cybercriminal uses the stolen data to steal the virtual property of a player, or to commit other types of fraud.
Read more details here: http://www.viruslist.com/en/analysis?pubid=204791963confidential user information from the following games:

• Mojie online

Uses the masks shown below to search for files on the victim machine:

• *.*