One of the things that came out of several Blizzard anticheat/Warden lawsuits back in the day is that, technically, the act of running an executable is copyright infringement, because the data is being copied from disk into memory, into registers and into caches.

Running any software that then does anything with the same memory space (cheating software or, say, antivirus) is another, separate instance of copyright infringement on top of that.