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Trojan Delete Help!

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#1 Gwebzor


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Posted 14 September 2008 - 05:23 PM

Hi there, thanks for reading. I hope you can help! Anything is much appreciated!

My operating system is Windows XP, run on a Dell Inspiron Laptop 710m, if that helps at all.

I've got a Trojan that, as far as I know, came simply from an ad from a banner on a website. I didn't go anywhere unusual, unless I was redirected without my knowledge (which has happened before, though I didn't get a Trojan from it then). I have Norton Antivirus Coporate Edition, which alerted me to the fact that I had gotten the Trojan, as well as to its name, but was unable to quarantine or delete it. The actual name of the Trojan was "Trojan.Vundo", although the file came with two parts I believe; called "opnlLDtu.dll" & another one called "byXNggeB.dll" without the quotes.

When Norton originally notified me about the Trojan, it said that it was located in the Temporary Internet Files, which I cleared as quickly as I could, along with cookies and history. Then it said the file had moved into my System32 folder, and I haven't been able to perform a system restore. I've shut down twice, in order to enter safe mode (I missed it on the first round because I was reading how to enter Safe Mode...), and I'm really hoping that won't screw me up.

I've followed the instructions on this site to the best of my abilities. So far I've downloaded the Autoruns program that allows you to view the automatic startup programs. I rebooted into Safe Mode, and I've searched through and deleted as many of the corrupt entries as I could find (there were multiples). The next step (as listed on here) is to go into Windows Explorer and find the corrupt files and delete them by hand. I've found them both, thanks to Norton, but when I click on them I get two different error messages:

For byXNggeB.dll: "Cannot delete byXNggeB: Access is denied. Make sure the disk is not full or write-protected and that the file is not currently in use."

For opnlLDtu.dll: "Cannot delete opnlLDtu: It is being used by another person or program. Close any programs that might be using the file and try again."

Aside from when I downloaded the Autoruns program, I've remained of the internet by disabling my Hardware Antenna (I'm here on a different computer in the house). I'm still in Safe Mode, with the Autoruns program running with a Windows Explorer Window open to those nasty files.

I hope I haven't left anything important out. Please tell me its fixable! I don't want to lose everything I've got on this computer. I've had it for years and it's my baby, or at least as close as a computer can get. Thank you so much in advance, if you need to know anything else, feel free to ask, and I greatly appreciate any kind of advice. Thank you!!!

Edit: Moved topic from XP to the more appropriate forum. ~ Animal

Edited by Gwebzor, 14 September 2008 - 05:38 PM.

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#2 boopme


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Posted 14 September 2008 - 09:24 PM

Hello let's try these two steps.
Please download Malwarebytes Anti-Malware and save it to your desktop.
  • Make sure you are connected to the Internet.
  • Double-click on 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 Scan" option is selected.
    • Then click on the Scan button.
  • If asked 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.
  • 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 may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes, they may alert you after scanning with MBAM. Please permit the program to allow the changes.

TWO: Use File Assassin in MBam

Launch Malwarebytes' Anti-Malware
Select the More Tools Tab
Click the Run Tool button
Use the address bar at Look In to locate the file(s)
Click Open
Click Yes to the deletion warning message
Please reboot.

Be careful that the file entered is the file you want. as it will be deleted.
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