Hello,
I use my own local Secure DNS resolver server (127.0.0.1) via Unbound
In the beginning internet was no longer working and I finally found that I had to disable Avast RealSite for the local name resolution to work.
I think that in this case (logically the hacking of my DNS is not possible?), RealSite (even if Internet worked) has no more use.
Can someone confirm?