Hyzide

One of the suspicious things I have noticed so far though is Google telling me that there's unexpected traffic, but just immediately before I cleared all data from my browser, reinstalled it, then cleared website and cache data again.

Greetings! I was browsing Firefox a few hours ago, when suddenly my laptop started typing random Chinese(?) characters and Unicode symbols with four letters in a box. It also started randomly opening applications, and I wasn't able to close anything. Hence, I immediately restarted my laptop, downloaded Malwarebytes, and ran it on full scan with rootkits enabled alongside Windows Defender. Both full scans found zero threats. I also checked potential suspicious apps and deleted them, continuously monitored Task Manager for an hour, and found nothing as well. As a last resort, I tried sfc /scannow to no avail. I immediately changed the master password of my password manager as a first-aid measure. Is there really a virus on my device? What is my next course of action in this scenario? Do I have to change the dozens of passwords in my password manager? Thanks in advance. Regards, Hyzide