Forums Connection Issues Bypass my schools network lol

Ok heres the thing. I love mirc, but my school doesnt seem to like it.
They have this system where they scan the ports of everysingle student in the dorms to make sure we dont have malicious software or other forms of "illegal" things running on our computers. More specifically, they scan the ports, and screw me over.

Here lies the problem, when I'm recieving files from people there are certain ports open. My school associates those ports as "malicious" when im recieving, therefore they block my internet connection.

My question is, is there any way to associate those ports with something like "starcraft" so that when they scan my ports they will see me recieving files, but not see it as MIRC or something "malicious"?