UDP Port 42 – name

About UDP Port 42

Port 42 is registered with the Internet Assigned Numbers Authority (IANA) for name. The IANA description reads: ‘Host Name Server’. This port appears in 1 IDS rule and does not have notable malware activity indicators in our data.

IDS Rule References

1 IDS / security rule reference UDP port 42. Presence in IDS rules does not mean traffic on this port is malicious. These are patterns security tools monitor.

Rule categories (top 1): attempted-admin (1).

Sample rule descriptions for UDP port 42:

• OS-WINDOWS Microsoft Windows WINS name query overflow attempt UDP

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 Snort Community Rules (GPLv2).