Windows 10: Windows defender virus definition bug

Discus and support Windows defender virus definition bug in AntiVirus, Firewalls and System Security to solve the problem; I develop a plug-in for Outlook, and the installer is digitally signed using a recognized EV signing certificate. Within the last three or four days,... Discussion in 'AntiVirus, Firewalls and System Security' started by Raythien, May 6, 2019.

  1. Raythien Win User

    Windows defender virus definition bug


    I develop a plug-in for Outlook, and the installer is digitally signed using a recognized EV signing certificate. Within the last three or four days, Windows defender has started identifying the installer as Trojan:Win32/Spursint.F!cl . This is true of previously published versions of the installer that were not in the past identified as a virus. This leads me to believe that Microsoft updated the algorithm for identifying this virus and introduced a bug.


    Can somebody from Microsoft contact me so we can troubleshoot this bug? I'm sure I'm not the only one affected.


    Thank you,

    David Cohen

    :)
     
    Raythien, May 6, 2019
    #1
  2. Rhina Vib Win User

    Virus and spyware definitions couldn't be updated.

    Hi Ogunmola,

    There are several possible reasons why you are unable to update your virus and spyware definitions in Windows 10. The most common cause is internet connectivity. If you are online, it can be caused by conflicts with the settings in Windows Internet Explorer.

    For us to better assist you with this concern, we need to ask a few questions:

    • Were there any changes made prior to this issue?
    • Are there issues with the internet connection?
    • Are you getting any error messages? Can you send a screenshot?
    • What troubleshooting steps have you tried so far?

    For steps to help resolve this issue with updating the virus and spyware definitions, you can refer to
    Giridhar J's post on this
    link
    .

    Looking forward to your reply.

    Thank you.
     
    Rhina Vib, May 6, 2019
    #2
  3. virus and spyware definition

    I followed the steps as suggested, and hence the problem got solved that time. But now again the virus definition is not getting updated. Its showing the same problem again. Any long term solution?
     
    AbhinavSrivastav_790, May 6, 2019
    #3
  4. Windows defender virus definition bug

    Windows Defender won't update the virus and spyware definitions

    Hi Tobin,

    Based on the issue that you are experiencing when updating virus and spyware definitions of Windows Defender, there is a possibility that another third-party antivirus is preventing the update or there is a system file corruption that stops the update from
    being installed. For us to provide better assistance, kindly answer the following questions:

    • What is the current build and version of your Windows 10 device? To check, type
      winver in the search bar then hit Enter.
    • Have you made any recent changes or installed other updates prior to this issue?
    • Do you have another antivirus running in the background?
    • What troubleshooting steps have you done so far?

    We hope to hear from you soon.
     
    Jennifer Cha, May 6, 2019
    #4
Thema:

Windows defender virus definition bug

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