SecurityRisk.ProxyDNS

Every time I run a Norton scan on my computer, I get the same message of a "High Risk Threat" removal.

It is "SecurityRisk.ProxyDNS."

It also states "Network change: DNS settings change: 82.163.142.7 Threat Removed

Network change: DNS settings change: 95.211.158.134 Threat Removed"

I even get the same message when I run the scans back to back with no other actions done on the computer. I am not sure if I can trust this computer or if this is a problem. I did a chat with Norton who was not very helpful or informative.

Any suggestions?