My apologies in advance if this is in the wrong forum; but due to potential severity of the issue, I couldn't take any chances in waiting too long. My friend's laptop which I'm not in the possession of, may be infected with a type of malware hiding behind the name "Chromium". I know that a legitimate Chromium open source browser does exist & in itself is harmless. However I'm not sure how I could help my friend determine whether or not their copy is real or the malware variant. To my knowledge they did not willingly download it or anything at all recently prior to it's icon popping up on their desktop. When they try to uninstall it via Programs & Features they're greeted with the message "An unknown user wants to make changes to this computer, Yes or No" & that the publisher of the software is Unknown. I told them to exit out of that & download Malwarebytes then perform it's threat scan. Which found, quarantined & deleted 728 PUPs & 1 PUM, at the moment they're running the Threat Scan again just to be safe.
1: What else can I recommend that they do besides making a Bleeping Computer account & asking here them-self?
2: How could I help them determine whether or not the Chromium that mysteriously appeared on their desktop to be legitimate or not?