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Know About Vundo Trojan

Vundo is a particularly frustrating Trojan horse that causes popups and now and again causes flaws to the computer system by blocking the access to some websites like Google. The Trojan resides in the memory through the Internet browser’s setup program.

On Window’s operating systems, the DLL Trojan files are labeled as eight random upper and lower case characters and reside in the system32 directory. This will create hidden files, which will be located during a virus scanning process, instead of the DLL file itself.
How to remove a Vundo Trojan

There are several ways to get rid of the Vundo Trojan from your system

Step 1: Locate the Trojan

1. Open the “Start” menu and choose the “Search” option from the list.
2. Check the option “All files or folders” and in the section “All part or part of the file name”, enter “Vundo” in the field file name.
3. Set the option to search through your local drives or in the whole computer system by selcting “Look in: Local Hard Drives” or “Look in: My Computer”
4. Begin the process by clicking “Search”.
5. When the process is done, select the “Vundo” folder found and copy the path into the address bar. You should also save the same path on your clipboard as you will use it to delete the Vundo.
Step 2: Use Registry Editor to eliminate Registry Values

1. Open the Start menu and go to the “Run” option and enter “regedit” and click “OK”
2. Locate and remove the spywares that were searched earlier.
3. To remove the "Vundo" value, right-click and choose the "Delete" option from the list.
4. Browse for and delete "Vundo" registry entries:





HKEY_CURRENT_USER SoftwareMicrosoftInternet ExplorerMainActive StateHKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRunOnce*WinLogon

HKEY_LOCAL_MACHINE SOFTWAREMicrosoftWindows CurrentVersionExplorerBrowser Helper Objects{8109AF33-6949-4833-8881-43DCC232B7B2}

HKEY_LOCAL_MACHINE SOFTWAREMicrosoftWindows CurrentVersionExplorerBrowser Helper Objects{2316230A-C89C-4BCC-95C2-66659AC7A775}

HKEY_LOCAL_MACHINE SOFTWAREMicrosoftWindows CurrentVersionExplorerBrowser Helper Objects{02F96FB7-8AF6-439B-B7BA-2F952F9E4800}






HKEY_LOCAL_MACHINE SoftwareMicrosoftWindows CurrentVersionRunOnce*[filename]

HKEY_CURRENT_USER SoftwareMicrosoftWindows CurrentVersionRunOnce*WinLogon

Step 3: Using Command Prompt for Vundo unregistration

1. Go to the Start Menu and open the Run command.
2. Enter “cmd” and click “OK”
3. Enter “cd” to change the actual directory, leave a blank space and copy the Vundo DLL path saved and press the “Enter” key.
4. For unregistration, paste in the path directory together with "regsvr32 /u" + [DLL_NAME]” and press “Enter”

Download and Use at Your own Risk
Download “Vundo” Trojan Romover Software

Remove Vundo Trojan with Windows Defender
Download Windows Defender from Microsoft


  1. nice tool and post, helped a lot.

  2. great post!!


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