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VirTool:Win32/DefenderTamperingRestore issue


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Hi,

 

As many others here it seems I have a problem with a possible malware infection. But every other posts I found on the subject didn't help much.

Since this evening I have a recurring alert from Windows Security for a severe threat VirTool:Win32/DefenderTamperingRestore

And every attempt to quarantine or remove it fails. I also disabled the Malware application integration (I have a Premium plan) thinking it was the cause of the threat, but nothing changed.

I attach to this post my FRST results if it can help.

 

Thank you for any help you could provide!

Addition.txt FRST.txt

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Welcome smile.png
 
I'll be helping you with your computer.
 
Please read this post completely before beginning. If there's anything that you do not understand, please don't hesitate to ask before proceeding.
 
Please take note of the guidelines for this fix:

  • Please note that I am a volunteer. I do have a family, a career, and other endeavors that may prevent immediate responses that meet your schedule. Do note that the differences in time zones could present a problem as well. Your patience and understanding will be greatly appreciated.
  • First of all, the procedures we are about to perform are specific to your problem and should only be used on this specific computer.
  • Do not make any changes to your computer that include installing/uninstalling programs, deleting files, modifying the registry, nor running scanners or tools of any kind unless specifically requested by me.
  • Please read ALL instructions carefully and perform the steps fully and in the order they are written.
  • If things appear to be better, let me know. Just because the symptoms no longer exist as before, does not mean that you are clean.
  • Continue to read and follow my instructions until I tell you that your machine is clean.
  • If you have any questions at all, please do not hesitate to ask before performing the task that I ask of you, and please wait for my reply before you proceed.
  • Scanning with programs and reading the logs do take a fair amount of time. Again, your patience will be necessary. smile.png

Let's begin... 

  • Download the enclosed file  Fixlist.txt
  • Save it in the same location FRST64.exe is saved. 
  • Start FRST (FRST64) with Administrator privileges 
  • This time around Press the Fix button and wait
  • When finished, a log file (Fixlog.txt) will pop up and saved in the same location the tool was ran from.

Please attach this file in your next reply.

Temporarily disable your AntiVirus and AntiSpyware protection - instructions here.

Please visit the ESET Online Scanner website

  • Click the One-Time Scan button to download the esetonlinescanner.exe file to the Desktop
  • Double click esetonlinescanner.exe. then the GetStarted button.
  • Accept the Terms of Use  and the Get Started again.
  • Enable reccomended options, and continue.
  • Select the Full scan
  • Enable Eset to detect and quarantine potentially unwanted applications
  • Click StartScan
  • The program will begin to download it's virus database. The speed may vary depending on your Internet connection.
  • When completed, the program will begin to scan. This may take several hours. Please, be patient.
  • Do not do anything on your machine as it may interrupt the scan.
  • When completed it'll show a list of "Threats found", click beneath it on Save to text file.... and save it as ESET log.txt on your Desktop.
  • Then click Do not clean. Place a checkmark at Delete application's data on close, click Finish and close the program.

Attach the ESET log.txt report.
 
Don't forget to re-enable previously switched-off protection software!!

Edited by JSntgRvr
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Please make the following change in Malwarebytes if you're using the Premium or Trial version

  • Please open Malwarebytes. Click on the small gear icon to open the Settings and go to the Security tab.
  • Then turn off "Always register Malwarebytes in the Windows Security Center"
  • Restart the computer

 

 

image.png.ced4aa64af4718ab767f579cc39014


 
It is highly unlikely that you need to setup exclusions for Windows Defender, however if you experience any issues, please see the following article and setup exclusions between Malwarebytes and other antivirus

https://support.malwarebytes.com/hc/en-us/articles/360038522974-Malwarebytes-for-Windows-antivirus-exclusions-list
 
 
That should allow both Your Antivirus and Malwarebytes to run alongside each other without issue.

Retry Malwarebytes Antimalware

Let me know if that corrects the issue for you or not.

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My 'Always register Malwarebytes in the Windows Security Center' option was already turned off, so I skipped this part. I also don't seem to have any need to set up exclusions, as I haven't received any alerts from Windows Defender anymore.

So, I guess I'm all good now?

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Congratulations.
 
Use this application to remove tools used and their quarantined items:
 
Please download KpRm by Kernel-panik and save to your Desktop.

  • Click on KpRm.exe to run the tool.

Vista/Windows 7/8/10 users right-click and select Run As Administrator.

  • Put a check mark next to these items:

- Delete tools

- Create Restore Point

- Delete now

  • Click the "Run" button.

automatic.png

  • When the tool has finished, it will create and open a log report and delete itself.

A few final recommendations:
 
The following information will help you to keep your computer and data safer as well as improve your overall privacy

Malwarebytes Browser Guard

uBlock Origin

Cybersecurity basics & protection
 
Everything you need to know about cybercrime.
https://www.malwarebytes.com/cybersecurity
 
Further reading if you'd like to keep up on the malware threat scene: Malwarebytes Blog 

https://blog.malwarebytes.com/
 
Please review the following to help you better protect your computer and privacy
 
Tips to help protect from infection
 
Hopefully, we've been able to assist you with correcting your system issues.
 
Thank you for using Malwarebytes. Please tell your friends and family if they too need assistance with malware removal

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