Windows 10: What to do when Windows Defender flags a Windows component as a PUA?

Discus and support What to do when Windows Defender flags a Windows component as a PUA? in AntiVirus, Firewalls and System Security to solve the problem; Windows Defender has flagged PowerShell as a PUA. I suspect this may be due to a potential malware script running, causing defender to think it... Discussion in 'AntiVirus, Firewalls and System Security' started by JeffreyHawkins, Jun 27, 2022.

  1. JEFFREYHAWKINS
    JeffreyHawkins Win User

    What to do when Windows Defender flags a Windows component as a PUA?


    Windows Defender has flagged PowerShell as a PUA. I suspect this may be due to a potential malware script running, causing defender to think it PowerShell is the problem. Anyway how do I investigate this, as I know that PowerShell itself is not the problem?Thanks.

    :)
     
    JeffreyHawkins, Jun 27, 2022
    #1
  2. JSSSSSSSSS
    Jsssssssss Win User
    Jsssssssss, Jun 27, 2022
    #2
  3. STITCH194
    Stitch194 Win User
    Defender Flagged Windows ISO

    Performed a manual WD quick scan. It flagged a PUA as severe, Active.
    PUA:Win32/Shoppers.

    Examining (Defender History) the threat with Defender to my surprise revealed:

    What to do when Windows Defender flags a Windows component as a PUA? [​IMG]


    The ISO was downloaded from the download link provided on (Windows News)this Forum.
    Did Windows Defender just shoot MS in the foot. Is it a false positive?
    Just to err on the side of caution, I successfully removed the threat, with some difficulties, if you can't trust Windows Defender who can you trust.
    Any ideas what this all about would be welcomed.
     
    Stitch194, Jun 27, 2022
    #3
  4. BREE
    Bree Win User

    What to do when Windows Defender flags a Windows component as a PUA?

    Windows Defender PUA Protection

    You shouldn't need 3rd-party apps to enable PUA protection. See this tutorial for how to enable it yourself.

    Enable or Disable Windows Defender PUA Protection in Windows 10
     
    Bree, Jun 27, 2022
    #4
Thema:

What to do when Windows Defender flags a Windows component as a PUA?

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