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ERROR -> c:\WINDOWS\system32\MSWMDM.dll is not a valid Windows image


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#1 Lukin922

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Posted 19 March 2009 - 11:43 PM

I accidently posted the following message in the Windows XP forum as I didn't scroll down to see this forum. I think it is better suited to be here.

I get the following error message when I attempt to start WinAmp.exe (Version 5.551).

"The application or dll c:\WINDOWS\system32\MSWMDM.dll is not a valid Windows image. Please check this against your installation diskette."

If I click OK, WinAmp starts and functions normal. I read about a possible back door trojan that may be causing this error message.

I ran Vundo, but nothing came back infected.

I am a complete novice, so I could use some help in determining the cause of the error as well as step by step instructions as to correcting the error or providing additional information. I'm not sure if this error is related to the computer freezing up and occasionally restarting. I'm almost to the point of re-installing Windows to increase the performance as the computer worked much better previously.

My computer is

W3410
AMD Athlon™ 64 Processor
3200+
2.19 GHz, 1.87 GB of RAM

Running Microsoft Windows XP
Home Edition
Version 2002
Service Pack 3

I've downloaded ComboFix but haven't run it since I don't know exactly what I'm doing at this point.

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#2 DaChew

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Posted 19 March 2009 - 11:52 PM

Open a command prompt (Start > Run > cmd)
Type sfc /scannow
SFC will scan your system files and replace corrupt/missing files using
cached files in dllcache folder.
Chewy

No. Try not. Do... or do not. There is no try.

#3 Lukin922

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Posted 20 March 2009 - 07:21 AM

I have to run 'command' to get the command prompt, not sure if that is an issue or not. However, the command prompt is not at the C: root, but is something like C:\User\~options\. I'm at work right now so I don't have the exact information. When I typed in the sfc /scannow nothing happened.

#4 DaChew

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Posted 20 March 2009 - 07:33 AM

Please download ATF Cleaner by Atribune & save it to your desktop.
  • Double-click ATF-Cleaner.exe to run the program.
  • Under Main "Select Files to Delete" choose: Select All.
  • Click the Empty Selected button.
  • If you use Firefox browser click Firefox at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • If you use Opera browser click Opera at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • Click Exit on the Main menu to close the program.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Please download Malwarebytes Anti-Malware (v1.34) 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 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 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.

http://www.bleepingcomputer.com/forums/t/114351/how-to-temporarily-disable-your-anti-virus-firewall-and-anti-malware-programs/
Chewy

No. Try not. Do... or do not. There is no try.

#5 Lukin922

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Posted 20 March 2009 - 04:31 PM

Here is the information from Malwarebytes' Anti-Malware 1.34



Malwarebytes' Anti-Malware 1.34
Database version: 1878
Windows 5.1.2600 Service Pack 3

03/20/2009 4:30:11 PM
mbam-log-2009-03-20 (16-30-11).txt

Scan type: Quick Scan
Objects scanned: 78485
Time elapsed: 5 minute(s), 17 second(s)

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

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#6 DaChew

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Posted 20 March 2009 - 04:58 PM

Check if SFC works
Chewy

No. Try not. Do... or do not. There is no try.

#7 Lukin922

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Posted 20 March 2009 - 07:42 PM

The SFC /scannow still does not appear to be working. Now that I am home the prompt is

C:\DOCUME~1\OWNER>

When I type sfc /scannow nothing happens and I just get another prompt line.

#8 Lukin922

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Posted 20 March 2009 - 07:49 PM

I was able to run the SFC /scannow just doing 'start' and 'run' instead of going to the command prompt. It is running in the back right now.

#9 Lukin922

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Posted 20 March 2009 - 08:16 PM

I got a pop-up window that stated the following:

"Files that are required for Windows to run properly have been replaced by unrecognized versions. To maintain system stability, Windows must restore the original versions of these files.

Insert your Windows XP Home Edition Service Pack 3 CD now."

My problem now is I don't have the CD to insert. What should I do? The service pack updates I've done were all through the web and not on a CD. Should I go out to Microsoft and download Service Pack 3?

#10 DaChew

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Posted 20 March 2009 - 08:28 PM

Start a parallel thread to this one in the windows xp forum, the experts there can help you with getting SFC to working.

We shall continue here looking for malware

You will probably need to download the administrative install for sp3
Chewy

No. Try not. Do... or do not. There is no try.

#11 Lukin922

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Posted 20 March 2009 - 11:43 PM

I had to download SP3 and execute the file. I was then able to run SFC /scannow without any issues. It completed and closed with no pop-windows.

I'm no longer getting the error message when I start WinAmp, however I did notice that when the computer reboots the computer now goes to 'classic' theme instead of the 'XP' theme. When I click on properties it appears as the 'XP' theme is selected, and I can click on 'apply' and the theme will load correctly. It is just odd that every time the computer reboots it defaults back to 'classic' theme. Not sure if this is a separate issue or a related issue.

#12 DaChew

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Posted 21 March 2009 - 04:56 AM

Please use the following steps to keep your selected theme and make the Windows XP theme available:
Click Start , and then Run .
In the Run window, type the following text in the Open field: services.msc
Click OK at the bottom of the Run window.
In the Services window, scroll down the list of services and double-click the Themes service.
In the Themes Properties window, set Startup type to Automatic .
In the Themes Properties window, set Service status to Start .
Click OK at the bottom of the Themes Properties window.
Windows XP themes are now available from Display Properties.
Chewy

No. Try not. Do... or do not. There is no try.

#13 Lukin922

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Posted 21 March 2009 - 07:02 AM

The start option was greyed an unavailable. I clicked stop, which then defaulted the theme back to 'classic'. When I clicked 'start' then it didnt' do anything. I then can click on properties and select 'XP' from the menu. Is this associated with the fact that the Path to executable is the following:

C:\WINDOWS\System32\svchost.exe -k netsvcs

Do I need to change that or is that why the display always default back to 'classic' on restart.

#14 DaChew

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Posted 21 March 2009 - 08:00 AM

Let's scan for an older infection

Please download and scan with SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and under Scanner Options, make sure the following are checked (leave all others unchecked):
    • Close browsers before scanning.
    • Scan for tracking cookies.
    • Terminate memory threats before quarantining.
  • Click the "Close" button to leave the control center screen and exit the program.
  • Do not run a scan just yet.
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked if you want to reboot, click "Yes" and reboot normally.
  • To retrieve the removal information after reboot, launch SUPERAntispyware again.
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.

Chewy

No. Try not. Do... or do not. There is no try.

#15 Lukin922

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Posted 21 March 2009 - 11:39 AM

I hit F8 and select 'Safe Mode' start-up option, however the computer never boots and gets hung up in the process. At the moment I'm not able to boot in 'Safe Mode'. Any suggestions?




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