UDP Port 5060 – SIP (Session Initiation Protocol)
About UDP Port 5060
Port 5060 carries the IANA assignment for sip. The IANA description reads: ‘SIP’. This port appears in 18 IDS rules and does not have notable malware activity indicators in our data.
IDS Rule References
18 IDS / security rules reference UDP port 5060. Treat that number as context, not a danger score. Many detection rules are written against groups of ports rather than one service, web ports especially, so common web alternate ports inherit large counts while genuinely sensitive services can show few rules or none. Presence in IDS rules does not mean traffic on this port is malicious.
Rule categories (top 3): attempted-recon (15), attempted-admin (2), protocol-command-decode (1).
Sample rule descriptions for UDP port 5060:
- PROTOCOL-VOIP inbound INVITE message
- PROTOCOL-VOIP Possible SIP OPTIONS service information gathering attempt
- OS-OTHER Bash environment variable injection attempt
- ET SCAN Smap VOIP Device Scan
- ET SCAN Voiper Toolkit Torturer Scan
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).