UDP Nintendo Wi-Fi Connection 30000 TCP, UDP Pokemon Netbattle 30564 TCP Multiplicity : keyboard/mouse/clipboard sharing software 31337 TCP Back Orifice – remote administration tool (often Trojan horse ) 31337 TCP xc0r3 – xc0r3 security antivir port 31415 TCP, UDP ThoughtSignal – Server Communication Service 31456-31458 TCP TetriNET ports (in order: IRC, game,