Windows 10: Wacatac false positive outbreak?

Discus and support Wacatac false positive outbreak? in Windows 10 Software and Apps to solve the problem; I've noticed lately that windows defender starts to mark almost all my zip files as risky because they supposedly contain Wacatac. The interesting... Discussion in 'Windows 10 Software and Apps' started by Nnoas ewe, Apr 4, 2023.

  1. NNOAS EWE
    Nnoas ewe Win User

    Wacatac false positive outbreak?


    I've noticed lately that windows defender starts to mark almost all my zip files as risky because they supposedly contain Wacatac. The interesting thing is that I can create a compressed file of images, videos or files without problems... There is no virus threat in any of the files that I am compressing. I even scan them again using VirusTotal.comthe uncompressed files and the zip file. I upload the zipped file to my driveOne drive or Google drive to download it on another computer. And that's when it happens, Windows Defender prevents the download of the compressed file because of th

    :)
     
    Nnoas ewe, Apr 4, 2023
    #1
  2. SNIXTOR
    Snixtor Win User

    False positive for desktop shortcut scanner.lnk

    The 1.239.488.0 virus / spyware definition update that rolled out about 24 hours ago appears to be producing a false positive for any shortcut placed on the desktop called "Scanner.lnk". I can consistently replicate a false positive for Trojan:Win32/FakeSysdef
    with the following steps.

    • Create a shortcut to an exe file.
    • Place the shortcut on the desktop.
    • Name the shortcut "Scanner".
    • Run "Quick Scan".
    I don't get the same result by directly scanning the file, nor by uploading the file to www.virustotal.com, so it would appear this is as a result of a heuristic rather than a file content analysis. I also don't get the same result with a shortcut that links
    to a website.

    Can anyone else replicate? How can we go about getting the Windows Defender team to reconsider this heuristic? It's a bit heavy-handed.
     
    Snixtor, Apr 4, 2023
    #2
  3. JOANNA 777
    Joanna 777 Win User
    defender false positive

    Hi Bob,

    To better assist you, kindly verify the following:

    • Where did you submit the file about Windows Defender being false positive?
    • Right after the recent Windows 10 update, your Zara Radio stopped working?
    • Regarding the 404 error, what application were you using when you got that error?

    Let us know.
     
    Joanna 777, Apr 4, 2023
    #3
  4. QUIETMAN7 - MVP
    quietman7 - MVP Win User

    Wacatac false positive outbreak?

    Questioning a false positive for a Windows Defender virus scan

    Anytime you suspect a possible
    false positive     or you want a second opinion, submit it to one of the online services that analyzes suspicious files. There are also number of web resources (URL Link Scanners) which can be used to check suspicious/unfamiliar
    sites or get second opinions.

     
    quietman7 - MVP, Apr 4, 2023
    #4
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Wacatac false positive outbreak?

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