UDP Port 4444 – Metasploit Default Listener (informal / malware-associated)

About UDP Port 4444

The Internet Assigned Numbers Authority (IANA) registers port 4444 for krb524. The IANA description reads: ‘KRB524’. This port appears in 0 IDS rules and does not have notable malware activity indicators in our data.

Data Sources

This information is compiled from: IANA Service Name and Transport Protocol Port Number Registry, Emerging Threats Open Ruleset (BSD 2-Clause / GPLv2 per SID range), and MITRE ATT&CK (Apache 2.0).