Hi! It seems my system has been infected with the Neshta virus, and upon looking up what this is, it seems I am in over my head in trying to deal with this.
2 days I ran a scan, which found nothing.
Today, as I closed a multiplayer game and opened my browser, I noticed the browser wasn't opening and that the game hadn't properly closed, so I force-closed Steam and ran a detection and had 4 positives of "Nestha.Virus.FileInfector.DDS" in C:\PROGRAMDATA\PACKAGE CACHE\ - after quarantining, I decided to rerun the scanner for good measure, and found yet another 4 results (also quarantined).
I've attached the files necessary as outlined in the pinned message here.
Thank you for the help in advance.
Malwarebytes Scan Report 2024-04-29 153104.txt
Malwarebytes Scan Report 2024-04-29 152131.txt
FRST.txt
Addition.txt