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Avira Antivir Detects Tr/vundo.gen


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5 replies to this topic

#1 Facid

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Posted 28 March 2008 - 01:07 PM

My system is running Vista Premium. I get a popup from Avira that TR/Vundo.gen is detected in 4 messages. I've selected delete files, but the problem remains. I've run Vundofix, but it didn't find anything.

I've looked for ways to remove it on the web, but all I've found are the forums where the HJT or Combofix logs are required to be viewed (which I have no problem doing), but is there any other way of removing this?

From the descriptions of the Trojan that I've read, saying that vundo causes popups for rogue antivirus software, it doesn't match what I've seen of it yet. It really hasn't done anything overtly to my knowledge other than cause Avira to be alerted.

Anyway, if someone could help, that would be great, thanks.

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#2 quietman7

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Posted 28 March 2008 - 01:34 PM

Please print out and follow the instructions for using "Vundofix". -- If using Windows Vista be sure to Run As Administrator.
  • Click the Scan for Vundo button.
  • Once it's done scanning, click the 'Fix Vundo' button.
  • After running VundoFix, a text file named vundofix.txt will automatically be saved to the root of the system drive, usually at C:\vundofix.txt.
  • Please copy & paste the contents of that text file into your next reply.
Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2
  • Make sure you are connected to the Internet.
  • Double-click on Download_mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
  • MBAM will automatically start and you will be asked to update the program before performing a scan. If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
  • On the Scanner tab:
    • Make sure the "Perform Quick Acan" option is selected.
    • Then click on the Scan button.
  • The next screen will ask you to select the drives to scan. Leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
  • Back at the main Scanner screen, click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad and you may be prompted to restart your computer. (see Note below)
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you will be presented with 1 of 2 prompts. Click OK to either and let MBAM proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot will prevent MBAM from removing all the malware.
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#3 Facid

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Posted 28 March 2008 - 03:58 PM

VundoFix V7.0.3

Scan started at 4:28:22 PM 3/28/2008

Listing files found while scanning....

No infected files were found.


Beginning removal...

-----------------------------------------------------------------------
Malwarebytes' Anti-Malware 1.09
Database version: 561

Scan type: Quick Scan
Objects scanned: 27329
Time elapsed: 2 minute(s), 40 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 1
Registry Keys Infected: 1
Registry Values Infected: 2
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 1

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
C:\Windows\System32\pmklj.dll (Trojan.Vundo) -> Unloaded module successfully.

Registry Keys Infected:
HKEY_CLASSES_ROOT\CLSID\{32f05659-3af7-48bb-b161-1d78f3152bed} (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSServer (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks\{32f05659-3af7-48bb-b161-1d78f3152bed} (Trojan.Vundo) -> Delete on reboot.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\Windows\System32\pmklj.dll (Malware.Trace) -> Delete on reboot.

#4 quietman7

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Posted 29 March 2008 - 06:06 AM

How is you computer running now? Any more reports/signs of infection?
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#5 Facid

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Posted 29 March 2008 - 02:12 PM

It all looks good. Thanks for the help! :thumbsup:

#6 quietman7

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Posted 29 March 2008 - 06:55 PM

Your welcome.

Now you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok".
  • Click the "More Options" Tab.
  • Click "Clean Up" in the System Restore section to remove all previous restore points except the newly created one.

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