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Need help with removing a virus in the boot sector.


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#1 OmegaDelta

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Posted 30 August 2011 - 05:03 AM

Backstory: One old crappy computer died...I build a nice new one. I took the old hard drive and put it in an external enclosure figuring after I moved the files I wanted...I could re-format the drive and use it as a back up unit for all my computers. I suspected there might have been a virus on the old computer because it was acting goofy before it died. Anyhoo...I updated my antivirus software and virus definitions first...then proceeded to hook up the old drive (via the USB cable and new external enclosure) to my new computer.

Bam!!! Virus detected!! I figured "No problem!", right?! Wrong!!

This virus ( Boot.Tidserv.B ) is not coming off the old drive and has now infected my new system.

CRAP!!! LOL

I've since downloaded Norton Power Eraser and performed several Safe Mode reboots to remove this virus without any luck.

Any help would be appreciated...Thanks in advance!

Chuck

Intel Core i3 550 @ 3.2Ghz
4GB RAM
Windows Home Premium (64 Bit)

Edited by OmegaDelta, 30 August 2011 - 05:03 AM.


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#2 Blade

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Posted 30 August 2011 - 12:09 PM

Hello.

Let's try this.

Please download the TDSS Rootkit Removing Tool (TDSSKiller.exe) and save it to your Desktop. <-Important!!!
Be sure to download TDSSKiller.exe from Kaspersky's website and not TDSSKiller.zip which appears to be an older version 2.3.2.2 of the tool.
  • Double-click on TDSSKiller.exe to run the tool for known TDSS variants.
    Vista/Windows 7 users right-click and select Run As Administrator.
  • If TDSSKiller does not run, try renaming it.
  • To do this, right-click on TDSSKiller.exe, select Rename and give it a random name with the .com file extension (i.e. 123abc.com). If you do not see the file extension, please refer to How to change the file extension.
  • Click the Start Scan button.
  • Do not use the computer during the scan
  • If the scan completes with nothing found, click Close to exit.
  • If malicious objects are found, they will show in the Scan results - Select action for found objects and offer three options.
  • Ensure Cure (default) is selected, then click Continue > Reboot now to finish the cleaning process.
  • A log file named TDSSKiller_version_date_time_log.txt (i.e. TDSSKiller.2.4.0.0_27.07.2010_09.o7.26_log.txt) will be created and saved to the root directory (usually Local Disk C:).
  • Copy and paste the contents of that file in your next reply.

***************************************************

Please download RKill by Grinler from one of the 4 links below and save it to your desktop.

Link 1
Link 2
Link 3
Link 4
  • Before we begin, you should disable any anti-malware software you have installed so it does not interfere with RKill running. This is because some anti-malware software mistakenly detects RKill as malicious. Please refer to this page if you are not sure how to disable your security software.
  • Double-click on Rkill on your desktop to run it. (If you are using Windows Vista, please right-click on it and select Run As Administrator)
  • A black screen will appear and then disappear. Please do not worry, that is normal. This means that the tool has been successfully executed.
  • If nothing happens or if the tool does not run, please let me know in your next reply
***************************************************

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link

IMPORTANT!!! - when you save the file, rename it to something random, such as bubbles.exe This must be done before beginning the download!

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. 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.
  • 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 http://data.mbamupdates.com/tools/mbam-rules.exe'>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. 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.

~Blade


In your next reply, please include the following:
TDSSKiller Log
Malwarebytes Log

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#3 OmegaDelta

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Posted 30 August 2011 - 05:30 PM

Thanks for responding! Here is an update...

I ran TDSSKiller in normal and safe mode (it doesn't like safe mode). Nothing was found.

I ran RKill in normal and safe mode (it also hates safe mode). Not only was nothing found...but a few times that I ran it...it gave me 3 pop-up errors that said "Application Error" and then said access denied several times (Yes, my other antivirus was disabled). I have a screenshot if this would help?!

I ran Malwarebytes Anti-Malware in just normal mode. Did the quick scan. Nothing was found.

So all three found nothing. About a minute after I finished...I turned my anivirus back on...and it popped up that I have a virus in my boot sector. Lucky me, it was Boot.Tidserv.B again!

Anything else I can do?

Thanks...

Chuck

#4 Blade

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Posted 31 August 2011 - 06:48 PM

Hello,

It appears that the issues on your system will require a more in-depth examination than can be performed in this forum. Please read the information in this guide, and follow all the steps beginning with step 6. After you have followed the steps in that guide, I would like you to start a new thread HERE and include a link to this thread.

If you can produce at least some of the logs, then please create the new topic and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the topic and explain that you followed the Prep. Guide, were unable to create the logs, and describe what happens when you try to create the logs.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient. The MRT is very busy, so it could be several days (3-5 days is the average wait right now) before you receive a reply. But rest assured, help is on the way!

~Blade

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#5 OmegaDelta

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Posted 01 September 2011 - 04:17 AM

I will do my best!

Thanks again.

#6 Blade

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Posted 01 September 2011 - 10:02 AM

It's my pleasure

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