A couple weeks back, I clicked on a link in an email (I know, pretty dumb, but it was from a Russian blonde I know, but I digress). If you want the link, I still have it. Anyway, I worked with a guy at Cyber Tech Help and he thought he got rid of whatever malware I got from that click. My first sign of a problem was a popup from Microsoft Security Essentials warning of malware that needed to be cleaned, only I don't have Microsoft Security Essentials installed. Anyway, like I said, he thinks he "got it", but here is the rub: I have a firewall in my router/modem set to "stealth" and have a Comodo Firewall installed on the machine. It doesn't seem to matter what I do, when run the port scan at www.grc.com, it shows that port 443 is Open. Previous attempts to "stealth" the machine used Windows 7 Firewall and Zone Alarm Firewall. The result was the same in each case.
The good folks at Geek Buddies told me the port had to be open to communicate and that I didn't understand what the scan was telling me... Despite what that technician said, I believe that the GRC report says that my computer is acting like a server, just sitting there waiting for anybody to connect to port 443. That port, at the very least, should be Closed, and with the firewalls in place, it should be invisible (stealth). Just to try to validate my concern, I asked my son to run the same GRC scan and he said that all 1056 ports on his system show as being "stealth" as expected.
It gets even better, I found a really great video on YouTube that explains how to close or open a port in Windows 7 https://www.youtube.com/watch?v=cbFiWeeMUDI I followed those steps to close port 443 and ran the GRC scan again. Still open.
So... What's the verdict? Do I have some sort of malware holding that port open right through two firewalls? Should my router and/or personal firewall be able to hide the port from being probed? Or is my Geek Buddy right and I have nothing to be concerned with?