https://www.virustotal.com/gui/file/043f7d25c657d614683191e0f6f7a4e97a0acf086d3b3d69d95984efa6f11d48
https://www.virustotal.com/gui/file/98468ebad3cbfc804fe266f384c85a6bec513426ab50cb18df0f81c386f22208
https://www.virustotal.com/gui/file/5baa109542d462d112ed8cb49c5d74c668d48cfc114c3ba19551cace74862330
First I thought its caused by combining dll and executable into one executable, but that's not causing the issue...
It looks like an included DLL (FastColoredTextBox.dll) is either infected or shown as infected.
FastColoredTextBox is available in source code on GitHub, I will rebuilt it from scratch replace the dll in the application.
I am closing the discussion on this there is nothing i can do.