After installing the app https://hyperspace.marquiskurt.net (Could not be related, but could also be related) and running for the first time, there was a file called "DESKTAAAAAAAA" on my desktop for a few short moments. AAA ", it had an indefinite amount of" A "in capital letters in the name. I did not manage to check the contents of the file because it disappeared after a few seconds.
I did not pay much attention to the strange event. About 5 minutes later, Windows accidentally initiated a shutdown (which I could stop in time), without me initiating a shutdown.
I am using Windows 7.
Is there a good chance I got infected? Are there any other possible explanations or should I immediately assume that I have found malware on my device?
I should note that I never had to do a Windows Shutdown without chance, without doing anything.
I would really appreciate any help I can get. Where can I first check by which process the shutdown was triggered? I'm worried about shutting down my PC until I can make sure it's either clean or fixed, because it's a cause of malware.