malware/trojan I made, that was harmless for me and stopped when I ended the right task, or restarted the computer, but I do not hold responsibility if anything is damaged or anything you do with this. This is simply for educational purposes. You are the one responsible for your actions.
As you can see windows defender may detect it as a trojan, but it took a while for that to happen for me:
It has some very obvious flaws, but its simple, and it could fool many people probably if it was sent as a message or something and just opened once downloaded, but if you actually look at the file type for example, it is an exe and shows as an application.
(the reason why this is so poorly made is because i tried to make it as simple as possible initially, then i changed my mind, then my mind went back to wanting to make it as simple as possible)