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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 Xx:xX:Xx:xX.

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?

  • Create a new Firefox Profile. Also if no Firefox process is running but you're seeing network traffic for it something is wrong. The addresses you're seeing are likely IPv6 addresses an example for Facebook would be 2a03:2880:f11c:8183:face:b00c:0:1. – Seth Feb 8 '18 at 11:21
  • Ok What do You mean by Create a New Firefox Profile, And what should I do with the old one, how does this work? – Dominique the Gamer Feb 8 '18 at 11:24
  • By the way, Our Router does not support IPv6, so it's even More Strange, That there are showing up that IPv6 adresses – Dominique the Gamer Feb 8 '18 at 11:27
  • Use the Profile Manager to create and remove Firefox profiles - it's up to you to decide what to do with the old profile. I'd first check whenever creating and using a new profile helps. How old is your router? Are you sure? What is the actual address you're seeing? – Seth Feb 8 '18 at 11:32
  • According to the German Website wieistmeineip.de/ipv6-test That Tells, telling me, IPv6 Adress: Not Available – Dominique the Gamer Feb 8 '18 at 11:34

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