I have a home network with a Netgear router with UPnP enabled connected to Verizon Fios. When I view the UPnP settings in the router it shows that one of the computers on the network has requested two ports be opened (one for TCP protocol and the other for UDP). What is troubling is that the ports that are open and assigned to these two protocols constantly change. (approx. every 2 minutes.) The port numbers range from a low of 1700 to over 60000.
I don’t have any videoconferenceing, games, IM clients, etc. running. I do have Norton Live Update that checks the Internet for updates and Quicktime that does the same. I also have the weatherbug installed.
What program on my PC would be constantly opening differerent ports for very short periods of time? Am I infected with some type of malware, etc.
Thanks for your help.