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Infection by W32/Blaster.worm


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#1 steven512

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Posted 26 December 2010 - 03:49 PM

Hi guys, first time posting.

I've had a spate of incidents involving possible viruses lately. The first occurred on 23/12/2010, which was Windows Defender saying that there was a backdoor infection from "cycbot.b". I did not personally get rid of this infection (it is possible that someone used my computer, and allowed Windows Defender to do its job), but as fas as I'm aware, it's mostly likely lying around somewhere. I was surfing the web today (26/12/2010) and I was infected by what seems to be Spyware. A window opened with a fake "scan" of my C:/ drive.

Long story short, this infection prevents me from opening any files. For example, it doesn't allow any internet access (I have disabled it since then, as I don't want to spread the infection) and I cannot open Microsoft Word files. I tried opening system programs such as regedit, task manager and msconfig, but all of these are blocked as well.

I have a (constant) pop-up from my system tray stating "File ... is infected by W32/Blaster.worm Please activate Spyware Protection to protect your computer." It's currently open stating that the file "TCrdMain.exe" is the culprit, although I have found that this is an essential Toshiba .exe file. In addition, I'm getting a typical "WARNING!" and some information in a (spyware) program saying how to activate Spyware Protection.

I'm currently running avast antivirus to eliminate the threat, but it's proving ineffective.

Could someone please advise me on what to do? Needless to say, my Christmas has been ruined by the infection, and I need my laptop to view Microsoft Word files on it (I have typed up my university notes), so you'll be doing me a huge favour.

EDIT: I'm running Windows Vista Home Edition

Edited by steven512, 26 December 2010 - 04:03 PM.


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#2 cryptodan

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Posted 26 December 2010 - 04:07 PM

Does the program look like anything in here: http://www.bleepingcomputer.com/virus-removal/remove-spyware-protect-2009

#3 steven512

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Posted 26 December 2010 - 04:16 PM

Does the program look like anything in here: http://www.bleepingcomputer.com/virus-removal/remove-spyware-protect-2009


Sort of, yes. It is not exactly like that, but very similar. It only does the "scan" the first time I open Google Chrome after start-up.

EDIT: In all honesty, I did not want to take much notice of it; I have had something like this before (on a smaller scale), and when I recognised what it was, I closed it instantly

Edited by steven512, 26 December 2010 - 04:19 PM.


#4 cryptodan

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Posted 26 December 2010 - 04:56 PM

Well next time try and take better notice of it, so we can better assist you.

#5 steven512

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Posted 26 December 2010 - 05:04 PM

Well next time try and take better notice of it, so we can better assist you.


Understood. I am currently running Vista in safe mode to try and remove the threat, and I have (full) functionality, which makes it seem as if the "virus" is triggered by accessing the Internet. I know that might sound dumb, but that's what it seems.

I'm also running a thorough scan of avast at the minute to see if I can remove possible threats. Once the scan is complete, I will confirm whether it has been removed, and failing that, I will try to upload a screenshot of the fake spyware protection "scan" that appears. Sorry for not being that prepared.

Is there anything else anyone can recommend in the mean time?

#6 cryptodan

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Posted 26 December 2010 - 06:49 PM

Id recommend the following by doing a fast scan.

Hello,

And welcome to BleepingComputer.com, before we can assist you with your question of: Am I infected? You will need to perform the following tasks and post the logs of each if you can.

Malwarebytes Anti-Malware

Please download Malwarebytes Anti-Malware and save it to your desktop.
Download Link 1
Download Link 2MBAM 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. Temporarily disable such programs or permit them to allow the changes.

  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
    For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
  • 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 definition updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Full 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 will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.






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