Jump to content

Interference between Malwarebytes Premium and Microsoft Safety Scanner?


Recommended Posts

Hi guys,

I was unsure where to post this. I hope I picked the right place.

Recently, Windows Defender detected a trojan virus on my laptop. Since I didn't have any important data on it (I only use it en route), I erased the HD/SSD and reinstalled Windows 10 from a bootstick (or rather had someone do it who's more tech-savvy than I am). I now use Malwarebytes Premium on my laptop in order to increase safety.

However, since I changed to Malwarebytes Premium, Microsoft Safety Scanner keeps detecting and deleting the following thing: "VirTool:Win32/DefenderTamperingRestore". Since the HD/SSD has been erased, that either means that some malware still is on my laptop (in the boot sector for example) or that Microsoft Safety Scanner now produces false positives (maybe because it mistakes the newly added Malwarebytes Premium for an attack on Windows Defender).

I tend to think that the latter is more likely since the exact same thing also happens on my PC where I also changed from Windows Defender to Malwarebytes Premium. On top of that, Malwarebytes Premium doesn't detect anything (neither on the laptop nor on the PC). Neither does ESET Online Scanner.

Could that be about right?

Link to post
Share on other sites

  • Staff

***This is an automated reply***

Hi,

Thanks for posting in the Malwarebytes for Windows Help forum.

If you are having technical issues with our Windows product, please do the following:

Malwarebytes Support Tool - Advanced Options

This feature is designed for the following reasons:

  • For use when you are on the forums and need to provide logs for assistance
  • For use when you don't need or want to create a ticket with Malwarebytes
  • For use when you want to perform local troubleshooting on your own

How to use the Advanced Options:

Spoiler
  1. Download Malwarebytes Support Tool
  2. Double-click mb-support-X.X.X.XXXX.exe to run the program
    • You may be prompted by User Account Control (UAC) to allow changes to be made to your computer. Click Yes to consent.
  3. Place a checkmark next to Accept License Agreement and click Next
  4. Navigate to the Advanced tab
  5. The Advanced menu page contains four categories:
    • Gather Logs: Collects troubleshooting information from the computer. As part of this process, Farbar Recovery Scan Tool (FRST) is run to perform a complete diagnosis. The information is saved to a file on the Desktop named mbst-grab-results.zip and can be added as an email attachment or uploaded to a forum post to assist with troubleshooting the issue at hand.
    • Clean: Performs an automated uninstallation of all Malwarebytes products installed to the computer and prompts to install the latest version of Malwarebytes for Windows afterwards. The Premium license key is backed up and reinstated. All user configurations and other data are removed. This process requires a reboot.
    •  Repair System: Includes various system-related repairs in case a Windows service is not functioning correctly that Malwarebytes for Windows is dependent on. It is not recommended to use any Repair System options unless instructed by a Malwarebytes Support agent.
    • Anonymously help the community by providing usage and threat statistics: Unchecking this option will prevent Malwarebytes Support Tool from sending anonymous telemetry data on usage of the program.
  6. To provide logs for review click the Gather Logs button
  7. Upon completion, click OK
  8. A file named mbst-grab-results.zip will be saved to your Desktop
  9. Please attach the file in your next reply.
  10. To uninstall all Malwarebytes Products, click the Clean button.
  11. Click the Yes button to proceed. 
  12. Save all your work and click OK when you are ready to reboot.
  13. After the reboot, you will have the option to re-install the latest version of Malwarebytes for Windows.
  14. Select Yes to install Malwarebytes.
  15. Malwarebytes for Windows will open once the installation completes successfully.

Screenshots:

Spoiler
 
 
 
 
Spoiler

 

 

01.png

02.png

03.png

04.png

05.png

06.png

 

 

If you are having licensing issues, please do the following: 

Spoiler

For any of these issues:

  • Renewals
  • Refunds (including double billing)
  • Cancellations
  • Update Billing Info
  • Multiple Transactions
  • Consumer Purchases
  • Transaction Receipt

Please contact our support team at https://support.malwarebytes.com/hc/en-us/requests/new to get help

If you need help looking up your license details, please head here: Find my premium license key

 

 

Thanks in advance for your patience.

-The Malwarebytes Forum Team

Link to post
Share on other sites

Thank you for your reply.

I didn't disable Defender manually. I installed Malwarebytes Premium and after I did that, Windows seems to have turned Defender off automatically. When I open Windows Security and go to Virus/Menace Protection, I see "Malwarebytes is activated". Microsoft Defender is off (but could be turned on again with a switch).

In the settings of Malwarebytes, I activated "Add Malwarebytes-Options to Windows Explorer".

Link to post
Share on other sites

4 minutes ago, Lochkartenlocher said:

Windows seems to have turned Defender off automatically

Malwarebytes turns off Defender by default like any other AV program.

I would suggest turning off this setting in Malwarebytes so Defender will come back on.

image.png.3b25c6a79710b1766adf7a1643c0245e.png

Link to post
Share on other sites

FYI regarding the message """VirTool:Win32/DefenderTamperingRestore"". When you install a third-party antivirus app, such as McAfee or Symantec or another name-branded A-V, the setting on Microsoft Defender as a "anti-spyware" is turned off. That is an expected & standard practice.
The turning off of the anti-spyware is what the Safety Scanner is flagging. This does not mean there is an actual infection.

  • Like 1
  • Thanks 1
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
Back to top
×
×
  • Create New...

Important Information

This site uses cookies - We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.