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HEUR/APC detected when compile application

NickKhor W/ Alumni Posts: 1 Security Scout

Helo Guys, i recently wrote some application in c#.

While compiling the application the F-Secure, the application was detected as HEUR/APC.

After some test, i found out if i didn't handle the input arguments as variable in the code, F-Secure will detect it.

I am wonder how and why is was detected as HEUR/APC?

Thanks guys!


  • JamesC
    JamesC W/ Partner, W/ Staff, W/ Moderator Posts: 521 Moderator

    Hi NickKhor

    If you suspect that:

    • A clean file has been falsely detected as malicious, or;
    • A file that is malicious but has not been detected by our software
    1. You can submit the file to our labs for further investigation. To submit a sample file, go to Submit a Sample or browse to the following link: the File Sample tab.
    2. Click Choose File, and attach your sample file.
      • Tick the box I want to give more details about this sample and to be notified of the analysis results if you want to receive feedback from F-Secure Labs on the submitted file.
      • Note: Subject and description should be written in English.
    3. Verify that you are not a robot with reCAPTCHA.
    4. Click Submit sample file.

    The sample submission is analyzed by our analysts and databases, and is updated if necessary.

    For more information how you can submit a sample, read our Community article here.

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