I'm a privacy conscious user and I don't like to be fingerprinted by marketing websites, so I set up my Symantec firewall and closed most of the ports that I don't use. I also disabled ICMP requests.
Now, when I access Facebook, Google or some other websites, I see they do ICMP requests and who knows what else. But there is something that amazes me. They are able to access my Windows kernel files.
I scanned all of my PC files and everything came out clean but in the firewall logs I can see these sites accessing
Ntoskrnl.exe. How is that even possible? Is there something residing in my router/modem?
Some of these tracking URLs that can access
aa.online-matrix.net(owned by device fingerprinting company called threatmetrix)
loadeu.exelator.com(the last two are both owned by the marketing company www.nielsen.com)
I have also attached an image file. Please check it out and give me your insights