What advantage does it have over existing methods? It’s great that it’s cross-platform, but so are zip files. And the content inside isn’t cross-platform, so I don’t think that ultimately adds anything.

https://github.com/upx/upx/issues/437

It states that the more people use and report upx as non antivirus to windows , the better detection rate occurs. This software is open source y’all. Not sure why you all have got your pitchforks

heres https://www.virustotal.com/gui/file/e61c808be19688dacff19d9439563410067e6eb72a9cc8afdb2644a785d056b1 , upx virustotal link.