itch.io

You are right. The .scr files I'm creating have the "Trojan:Win32/Wacatac.B!ml". I'm not sure what it is, but it's created by the program I use to convert .swf files to scr. There's nothing I can do about this, as I don't have any other way of making screensavers. It might be a false-positive warning because I never had problems with my files.

At least the .exe and .swf files are virus free and you can view the animations using these files.