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[ RESOLVED ] Can MWB's and Defender both run RTP together?


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Hi! First, I want to establish some background to my issue. I used to run Malwarebytes premium in the security center of windows defender. All went well (although sometimes I noticed some issues) until one day Defender detected VirTool:Win32/DefenderTamperingRestore. This was odd to me since defender didn't even have periodic scanning on and I hadn't downloaded anything new in weeks nor had I seen any suspicious activity. The issue didn't repeat until it popped up again one day. After doing some research with a friend, we determined that it was most likely defender not liking MWBs trying to turn it off. I unregistered MWBs from windows defender's security center and haven't seen the issue pop up since. 
 

Recently though, I've been wondering if it's a good idea to have MWBs RTP and defender's RTP on at the same time. I understand that there can be some conflicts in those kinds of situations. I've seen conflicting opinions on other sites, so I am curious if running both of these at the same time will cause any issues or make me less secure. Thanks for the help!

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19 minutes ago, SecurityNut1 said:

I've been wondering if it's a good idea to have MWBs RTP and defender's RTP on at the same time.

Yes, there are no conflicts at all because of the way Malwarebytes works.

In fact, you will be more protected.

Quote

The reason many of us members are pushing Keeping Defender on is the following.

Malwarebytes does not target script files during a scan... That means MB will not target; JS, HTML, VBS, .CLASS, SWF, BAT, CMD, PDF, PHP, etc.

It also does not target documents such as; PDF, DOC, DOCx, XLS, XLSx, PPT, PPS, ODF, etc.

It also does not target media files;  MP3, WMV, JPG, GIF, etc.

Malwarebytes will block files like these if malicious on execution-only.

And,

Malwarebytes is not designed to function like normal AV scanners and uses a new kind of scan engine that relies mostly on heuristics detection techniques rather than traditional threat signatures.  Malwarebytes is also designed to look in all the locations where malware is known to install itself/hide, so a full or custom scan shouldn't be necessary, especially on any sort of frequent basis (like daily), especially since the default Threat Scan/Quick Scan checks all loading points/startup locations, the registry, all running processes and threads in memory, along with all system folders, program folders, and data folders as well as any installed browsers, caches, and temp locations.  This also means that if a threat were active from a non-standard location because Malwarebytes checks all threads and processes in memory, it should still be detected.  The only threat it *might* miss would be a dormant/inactive threat that is not actively running/installed on a secondary drive, however, if the threat were executed then Malwarebytes should detect it.  Additionally, whenever a new location is discovered to be used by malware the Malwarebytes Research team adds that location dynamically to the outgoing database updates so the locations that are checked by the default Threat/Quick Scan in Malwarebytes can be changed on the fly by Research without requiring any engine or program version updates/upgrades.

An AV will catch the file just by downloading it or just opening a folder with a detected file in it.

For example, you get an email with an infected attachment, Malwarebytes will not even blink until you run it yet Defender will detect it if it is in their database without even actually clicking on it. Remember the list of files Malwarebytes does not target.

Then I will leave you with this.

As good as Malwarebytes is, it is just a layer of protection.

Using a browser that has Ublock Origin and the Malwarebytes Browser guard enabled is also a layer of protection.

Not opening attachments from an email unless you were expecting it from a specific user during a specific time period.

Do not use Torrents. Do not install every free software you find. Do not click links in an unknown email. Go directly to the site listed in the email.

 

Edited by Porthos
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I think the key word though would be "potentially". In most testing there are rarely ever detections that Malwarebytes does not detect and WD does. As with any antivirus product though all products can and do find things from time to time that others do not.

Certainly no harm in having Windows Defender in full protection mode alongside Malwarebytes. One never knows.

 

 

 

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

 

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 Windows Deefender

 

Malwarebytes for Windows antivirus exclusions list
https://support.malwarebytes.com/hc/en-us/articles/360038522974-Malwarebytes-for-Windows-antivirus-exclusions-list

 

Then visit the following links on how to setup exclusions in Windows Defender

How to Add or Remove Exclusions for Microsoft Defender Antivirus in Windows 10
https://www.tenforums.com/tutorials/5924-add-remove-microsoft-defender-antivirus-exclusions-windows-10-a.html

Add or Remove Exclusions for Microsoft Defender Antivirus in Windows 11
https://www.elevenforum.com/t/add-or-remove-exclusions-for-microsoft-defender-antivirus-in-windows-11.8797/

 

We are not aware of any currently known issues between Windows Defender and Malwarebytes Premium

 

Edited by AdvancedSetup
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Thank you everyone for the speedy replies! I will keep defender and MWB running together for now on. I guess I know what forums to head to if I ever have an issue with that "DefenderTamperingRestore" thing coming back, haha. So far though, it hasn't popped up once I let MWB's and defender coexist! Thanks for the help! I appreciate it! 

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