GoldenSpy has used HTTP over ports 9005 and 9006 for network traffic , 9002 for C2 requests , 33666 as a WebSocket , and 8090 to download files.[15 ] GravityRAT has used HTTP over a non - standard port , such as TCP port 46769.[16 ] HARDRAIN binds and listens on port 443 with a FakeTLS method.[17 ] HOPLIGHT has connected outbound over TCP port 443 with a FakeTLS method.[18 ] Some Lazarus Group malware uses a list of ordered port numbers to choose a port for C2 traffic , creating port - protocol mismatches.[19][20 ] MacMa has used TCP port 5633 for C2 Communication.[21 ]