no matter what i scan virustotal always has at least 1-2 vendors mark it as a false positive. i've uploaded empty archives, blank raw text documents and random images and photos and there's always at least one.
i would be more concerned if several caught it. additionally if you google the name of said malware you'll see that every single post and thread mentions it being an extremely common false positive. windows defender seems to mark benign python and c++ scripts as being infected with this quite frequently.
you're probably fine but if you're ever super paranoid maybe consider putting a linux distro on a flash drive and performing your mods on that. it wouldn't 100% protect you unless you also physically disconnected any other mountable media but it would certainly add a layer of protection and teach you some new skills.