Here are the details I have about the Porscan.
Risk Name: Portscan
Severity: Medium
Attacking Computer: 209.55.5.10,53
Source Address 209.55.5.10
Traffic Description: UDP, Port53
This is for the UDP packet, this can go on for a hour, and leaves a history in virus program every minute.
Rule "Default Block UPnP Discovery" stealthed (192.168.1.1, Port ssdp(1900))
Inbound UDP packet
Local address, service is (239.255.255.250, Port ssdp(1900)).
Remote aaddress, service is (192.168.1.1, Port (20532)).
Process name is "C:\Windows\System32\svchost.exe".