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Unusual infection


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6 replies to this topic

#1 provocateur

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Posted 23 December 2008 - 04:57 PM

Hello all, I have a very unusual infection. I use Spybot and it keeps popping up with a message that lenolojafo cannot load lehevusa.dll (which I deleted from System32). I can connect to any site that does not have anti-virus software or is an anti-virus site, such as Symantec, Trend, Mcafee or such.
I downloaded Combofix and installed the recovery console, but when I start Combofix, nothing happens, although it is shown in Task Manager as a process.
Is there anything else I can do? I really do not want to reload Windows. I do have two other PCs, this laptop and another desktop, neither of which are infected. Help, please...... :thumbsup:

I have Win XP Pro SP3.

In the registry under HKLM\Software\MS\Windows\current ver\Run - the key is: lenolojafo REG_SZ Rundll32.exe "C:\Windows\system32\lehevusa.dll",s
I delete the key, click on another branch, go back to "Run" and it is back....

Edited by provocateur, 23 December 2008 - 05:23 PM.


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#2 rigel

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Posted 23 December 2008 - 07:04 PM

First a word of warning...

Please note the message text in blue at the top of this forum.

ComboFix is an extremely powerful tool which should only be used when instructed to do so by someone who has been properly trained. ComboFix is intended by its creator to be "used under the guidance and supervision of an expert", NOT for private use. Please read Combofix's Disclaimer. Using this tool incorrectly could lead to disastrous problems with your operating system such as preventing it from ever starting again.

Let's start with Malwarebytes...

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 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 (like Spybot's Teatimer), they may interfere with the fix or alert you after scanning with MBAM. Please disable such programs until disinfection is complete or permit them to allow the changes.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#3 provocateur

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Posted 24 December 2008 - 05:09 AM

Hello Rigel and thanks for the reply. I have just returned from work (early because of the day) and received your reply. I can download Mbam via my laptop, but on the infected PC access to the internet is only allowed to some sites and the download did not happen (Error: Connection Interrupted. The document contains no data, The network link was interrupted while negotiating a connection. Please try again.) My browser is Firefox 3.0.5. I copied the downloaded file to the infected PC and it refuses to run.

I am at my wit's end... Is there any way I can force the software to run - in safe mode the infection is still present. I have checked for hidden processes, but there are none, so I must assume that one or other of the standard Windows files has been infected.

#4 rigel

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Posted 24 December 2008 - 10:19 AM

Do you have a way of moving Malwarebytes from your laptop to your infected pc? Don't forget to download the updates too...

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#5 provocateur

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Posted 27 December 2008 - 03:51 AM

Hello Rigel, I have copied the program to the infected PC, but it will not run. I shared the PC's C: drive and scanned it from my laptop, but it found no infection, but Spybot is constantly giving me messages that the infection is trying to modify my startup. At midnight each night it creates a few random DLLs and adds these to the startup in Msconfig. Spybot asks if it can make the mods and I block these. I use Tune-up Utilities to delete them from the startup, but on refresh, they reappear.
I assume that svchost.exe or some other necessary Windows file has been infected, but no AV or Malware detector can find a problem.

If you have some way of assisting, I will be grateful.

Anyway, Happy Holidays to everyone..... :thumbsup:

#6 rigel

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Posted 27 December 2008 - 06:06 PM

I am going to send you a PM with instructions. Please try that and run malwarebytes.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#7 provocateur

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Posted 29 December 2008 - 09:15 AM

Hi Rigel, I now have a perfectly clean PC. Thanks a mil. When running Malwarebytes, I did not have all the AV and spyware progs off. After ensuring that they were all off, I ran Malwarebytes again and it was able to disinfect the PC completely. The infections were: Trojan.Vundo, Trojan.Vundo.H and Trojan.BOH.

Once again - thanks to You and the Bleeping Computer team and of course the authors of Malwarebytes.

I hope your New Year starts and finishes as well as my new, clean and fast PC.

Barry Eslick - Pretoria, South Africa.




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