Qt World Summit: Submit your Presentation

Windows Defender

  • Windows 10 Defender is rejecting and deleting my QT 5.6 software. I know the end-user workarounds, and I know how to submit false positives. But this is happening every freaking time I do a new release. Software is deleted, noob users accuse me of distributing a virus.

    Is there anything I can do to prevent this from happening?


    The following error occurred: Error code 0x80508023. The program could not find the malware and other potentially unwanted software on this computer.

    Category: Trojan
    Description: This program is dangerous and executes commands from an attacker.
    Recommended action: Remove this software immediately.

  • Lifetime Qt Champion


    That's a question you should rather bring to the interest mailing list. You'll find there Qt's developers/maintainers. This forum is more user oriented.

  • Thank you, I will do that.

  • Lifetime Qt Champion

    @jocala Did you try to scan your binaries here: https://www.virustotal.com/de/ ?

  • Thanks, my exe is statically compiled and virus-free. Even Defender scans it as virus-free when the file is scanned from the windows desktop. It's just the download rejection that's causing this agita. As I said above, I'm aware of the workarounds, but newbie users aren't and the fact that "Microsoft" says the file is evil scares some.

  • Lifetime Qt Champion

    Wrap it in a light installer?

  • Thanks for the reply. I have tried Inno Installer and creating an MSI installer, both with the same result. The next thing I will try is a different compiler.

  • The binaries may scan fine but the behavior of the program could be the trigger. If the program does things that are suspicious it will get more attention (especially a new program).

    Just to make sure I would build Qt from source or only use binaries from a trusted source with a checksum hash that you can verify.

    This is a big concern I have when moving between Windows computers. I have not had problems but I always keep in the back of my mind that everything might be deleted in the blink of an eye and snowball into a bad day - bleh!

Log in to reply