How to Remove WinFixer / Virtumonde / Msevents / Trojan.vundo

Posted by D-Trojanator on August 15, 2008 @ 12:08 PM · Views: 1,224,305

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What this programs does:

The Vundo family of Trojans is one of the most common infections we find on user's computers. This infection can cause popups that include advertisements for rogue anti-spyware programs. Some common rogue antispyware programs that are advertised include WinFixer, SysProtect and WinAntiSpyware. Users are normally targeted by false positives, fake alerts, and warning of infections on their computer. An example of this type of misleading advertisement would be popups alerting users that they are infected with a blackworm virus. The most common method of infection is through outdated versions of the Sun Java platform; older versions are being exploited so it is important to firstly make sure that your Java software is fully up to date. This infection is normally detectable by users receiving popups when they use the Internet. Your antivirus program might also notify you via an alert that you have a Vundo Trojan on your computer.

The Vundo infection has evolved over time to include harder and harder protection methods so that it cannot be easily removed. These methods are random names, random autorun locations, random CLSIDs, and rootkits to hide these locations from removal tools. Due to this, specialized tools have been created in order to target this specific infection and remove it. The following guide will explain how to use the tool, and hopefully rid your system of this malware.

Threat Classification:

• Trojan Horses

Tools Needed for this fix:

• VundoFix
• VirtumundoBegone

Symptoms that may be in a HijackThis Log:

O2 - BHO: (no name) - {EFCB1D95-FFF6-47BB-B6C9-61A523F04322} - C:\WINDOWS\system32\vturr.dll
O4 - HKLM\..\Run: [BM7ff321ff] Rundll32.exe "C:\WINDOWS\system32\hnqdrmsm.dll",s
O20 - Winlogon Notify: vturr - C:\WINDOWS\system32\vturr.dll

Guide Updates:

01/09/07 - Updated guide to reflect updates to the tools

Automated Removal Instructions for the Vundo or Virtumonde infection using VundoFix:

1. Please print these instructions as they will be needed later when Internet access is not available.
   
   
2. Save these instructions in word or notepad to the desktop where they can be easily found.
   
   
3. Download Vundo Fix and save it to your desktop.
   
   
4. When it has completed downloading, double-click VundoFix.exe to run it.
   
   
5. Click the Scan for Vundo button.
   
   
6. Once it's done scanning, click the Remove Vundo button.
   
   
7. You will now receive a prompt asking if you want to remove the files, click the YES button. Once you click yes, your desktop will go blank as it starts removing Vundo.
   
   
8. When completed, it will prompt that it will shutdown your computer, click the OK button.
   
   
9. When the computer has shutdown, turn your computer back on.

The WinFixer and Vundo infection should now be removed from your computer.

If you are still having a problem then please perform the following steps:

Note: This step should only be used if the instructions in the previous steps did not remove the infection:

1. Download VirtumundoBegone and save it to your desktop.
   
   
2. Now reboot into Safe Mode.
   
   
   1. This can be done tapping the F8 key as soon as you start your computer
      
      
   2. You will be brought to a menu where you can choose to boot into safe mode.
      
      
   3. Select safe mode with networking using your arrow keys on the keyboard and then press enter.
      
      
   4. When you computer reaches the desktop make sure you log in as the same user which you had performed the previous steps,
      
      
3. Once you are logged into safe mode, double-click VirtumundoBeGone.exe file you just downloaded and follow the instructions.
   
   
4. Exit when it has finished, and reboot back to normal mode.

The WinFixer and Vundo infection should now be removed from your computer. Conclusion

If you are still having problems with your computer after completing these instructions, then please follow the steps outlined in the topic linked below:

Preparation Guide For Use Before Posting A Hijackthis Log