I wrote a “virus” in college, which basically:
- took a screenshot of the entire desktop
- displayed screenshot full-screen on top of other windows
- would only go away if you typed “@sugar_in_your_tea pwned me” or something
Oh, and it started on startup, so rebooting wouldn’t fix it. :)
I did one similar! Used autohotkey to hide the task bar at random intervals and pop up a warning that said “system out of memory”. Only way to get it back was autohotkey or a reboot. It would restart daily and on login so it would keep happening. And I hid it as “Nvidia game scanner service.exe” in the Nvidia bloatware folder so it looked innocent. Had a good laugh about that one