Using GMS 1.4 (latest version) It was brought to my attention that one of my games (standalone exe) was flagged by a friend's anti virus (Avast). It was also flagged by another friend's anti virus (Avira). This prompted me to check the file on virustotal. Out of 70 engines, only 2 detected something. Just to make sure, I removed all traces of an extension I'm using in my project and tried again, this time only 1 detection. I then tried uploading the installer version, same result. I then uploaded a standalone exe of one of my friend's games, made with GMS2, to virus total and it had the same result (same engine detecting the same thing). I therefore assumed it was a false positive to do with how some anti virus see Game Maker's unsigned standalone exes. However, trying a bunch of different GMS games, I'm finding that many have nothing detected, and others have entirely different results. I then put the project file on another computer and exported the exe there, with a fresh install of up to date Windows 10. Just to make sure there isn't something latching onto exes made on the first computer. Same result. Malwarebytes has not found anything. I have read of cases of false positives happening, and in this case that certainly happened with one of those two results (it consistently flags as suspicious when using that extension, and does not when the extension is removed). However, I'm trying to find out why something is still being detected on my game, and not on many other games. It seems like a false positive, but I'm not ruling out it being a legitimate detection. Does anyone have a similar experience, or any insight? Any help is greatly appreciated. EDIT: Follow up about the case of it being flagged by Avast - they let it do a full check on the file and it was deemed clean. Then when they tried opening the file, it flagged it again, so they added it to exceptions. Another user with Avast was able to open the same file with no problems.