My Parents own since a couple of years a Computer with Windows 7, and everything worked fine, until about three or nine months ago. That's when their PC started to lag! I recognized it, but didn't know what the exact Problem was. Now I know about all this bitcoin etc.! And I read some articles about those viral Crypto miners appearing on some Websites that are persistent.
I already looked Into the taskmanager, resource monitor etc. and I found raised activity, about 20 per cent CPU usage above the normal level. Yes, I closed All Apps and background tasks like steam etc.! RAM usage is also Raised about 1.5 GB. Besides, the network activity shows about average 55% all filled with the Firefox PID 3280, although it's closed. The IP addresses they're communicating with aren' t
XxX.XxX.XxX.XxX but Like mac adresses
So, I think it could be a crypto miner. How can I confirm whenever it's is or not? If it is, how do I remove it?