// REFERENCE
Port 4444 (Metasploit / malware)
Protocol: TCP
Service: Meterpreter
High risk
The default port of the Metasploit handler (Meterpreter) and many reverse shells. Seeing it on your network usually signals compromise: investigate it as possible C2.
Related tools
Work with this in:
Related
111
Port 111 (RPCbind / Portmapper) 135
Port 135 (MSRPC) 137
Port 137 (NetBIOS Name) 138
Port 138 (NetBIOS Datagram) 1883
Port 1883 (MQTT) 2375
Port 2375 (Docker API)
Port 111 (RPCbind / Portmapper) 135
Port 135 (MSRPC) 137
Port 137 (NetBIOS Name) 138
Port 138 (NetBIOS Datagram) 1883
Port 1883 (MQTT) 2375
Port 2375 (Docker API)
Assignments per the IANA port registry. Educational content.