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Aftermath of virus/trojan; can't run msconfig, command/cmd, etc.


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#1 BrianLas

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Posted 09 February 2009 - 01:13 AM

Hi and thanks in advance for any help you can provide!

A few days ago, my Windows XP system became infected with at least the following: Virtumonde and Win32.Delf.uc, and, I fear, with other viruses and trojans as well. I have run full scans with AdAware and Spybot Search and Destroy, and with my Avast virus protection. Several additional viruses have been removed. Unfortunately, I did not write down the names of those.

When I boot into Windows, I get several failures: spoolsv.exe, btwdins.exe, swagent.exe, jrun.exe, and swstrtr.exe all have "Application Error"s. Naturally, one of the side-effects of this is that I can't print.

However, I also cannot execute many .exe files (for example, I cannot unpack binaries stored in .exe form). I also cannot run cmd or command (they fail with "... has encountered a problem and needs to close". I also cannot run msconfig or services.msc (nothing happens when I type these commands). I cannot run sfc, as I cannot get to a command prompt.

I can, however, run regedit. When I try to open an archive and extract, it fails with " ... has encountered a problem and needs to close." Luckily, I do have WinZip installed so can get around unzipping, but usually am then unable to execute the contained .exe file.

Things like Outlook come up and function fine, and I can access and download files from the Web. Microsoft Word works fine, but, as I said earlier, I cannot print, as the print spooler is not running (and I can't get to services.msc to start it).

I am hoping it is something as simple as my PATH environment variable has been changed, but I do not know how to look at it because I can neither get into a command/cmd prompt nor run msconfig.

I am at a loss as to what I should do next. I would very much appreciate some help! Thanks again!

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#2 quietman7

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Posted 09 February 2009 - 12:08 PM

Please download Malwarebytes Anti-Malware (v1.33) and save it to your desktop.
alternate download link 1
alternate download link 2
If you have a previous version of MBAM, remove it via Add/Remove Programs and download a fresh copy.
  • 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. Alternatively, you can update through MBAM's interface from a clean computer, copy the definitions (rules.ref) located in C:\Documents and Settings\All Users\Application Data\Malwarebytes\Malwarebytes' Anti-Malware from that system to a usb stick or CD and then copy it to the infected machine.
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. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
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 using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you after scanning with MBAM. Please temporarily disable such programs or permit them to allow the changes. Click this link to see a list of programs that should be disabled.

Some types of malware will disable MBAM and other security tools. If MBAM will not install, try renaming it.
  • Right-click on the mbam-setup.exe file and rename it to mysetup.scr.
  • Change the .exe extension to .scr, .com, .pif, or .bat.
  • Then double-click on mysetup.bat to run.
  • If after installation, MBAM will not run, open the Malwarebytes' Anti-Malware folder in Program Files.
  • Right-click on mbam.exe and rename it to myscan.
  • Change the .exe extension in the same way as noted above.
  • Then double-click on myscan.scr to run.

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