Windows 10: Windows Defender has detected 1 threat and has taken action agaisnt it but i do not see...

For the past week when i used the defender scan i kept getting the notification that windows defender has detected 1 threat and has taken action against it, The thing is that whenever i scan again it is still there. i tried the offline scan to root it out and it would work but after a while the 1 threat reappears. i checked the logs in the windows defender and saw some examples of the event id 5007 which says that Microsoft Defender antivirus configuration has been changed. if this is an unexpected event you should review the settings as this may be the result of malware. here are a few exampl

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'windows defender successfully took action on 1 threat'

I get a notification that 'windows defender successfully took action on 1 threat' but I am not able to see what the problem or threat was that it took action on. Advice?

 

Threat detection Options confusion

Hello,

I had a virus on my PC and windows defender quarantined it.

But I clicked on the “Action” button and has three options: Removes , Restore , and Allow

I clicked on Remove, but the threat status changed to: “threat removed or restored “

Which is confusing.

I then clicked again on the “Action” button and only 1 option appeared which is “ Allowed” I mistakenly Clicked on. But then I removed it from the “ allow history “

So my question:

• does allowing a “ removed or restored” threat means releasing it again in the PC or it means only allowing the future similar threat?

Because I run a scan after i removed it from allow history and nothing is detected.

I’m very confused. I would appreciate help.

My threat was : worm win32/bundpil. “Two letter “

 

Windows defender false positive - forced to allow threat

Windows defender has started to identify C:\Windows\System32\mshta.exe as a threat [normally reported as a Trojan Powessere.G]. I use mshta.exe to run an hta custom MsgBox - I have been hoping to keep using my current CustomMsgBox tool [batch file calling a vbs-hta file] until later this year when I hope to have had enough time to replace it with a PowerShell alternative.

Windows defender's notification lets me "allow the threat" but that seems to me to be a bigger security hole than is necessary - it will now ignore a potentially real intrusion when all I want to run is a genuine Windows component. My immediate problem is fixed but I would prefer to fix the false positive using the exclusions list.

I cleared the 'Allowed threats history' so I could use the exclusions list instead. I added C:\Windows\System32\mshta.exe to the file exclusions list and I checked that it had taken properly by checking the exclusions list both in the UI & in the Registry. But the exclusion made no difference, it continued to detect and block the exe.

I have repeated the attempt several times [by clearing the allowed threats list & exclusions list beforehand] and the results are the same every time
- allowing the threat works,
- using the exclusions list has no effect.

I studied the relevant tutorial but have not spotted an error in what I have been doing - Add or Remove Windows Defender Exclusions

Does anybody with experience of using the exclusions list to counter false positives have any suggestions for me?

Denis