well i don't know, all i know is suddenly this "computer" keep showing up on my network map in the mcafee security centre and it's not a device i recognise. It is my network so i can't not trust it. But i didn't have any choice as to allow or not allow that computer.
Would banning the IP address and ports using my router stop it? (of course i'm not sure whether it is an intruder or just one of my home applications, but i'm sure i'll find out when i block it)