TCP Port 515 – printer

About TCP Port 515

Port 515 carries the IANA assignment for printer. The IANA description reads: ‘spooler’. This port appears in 4 IDS rules and does not have notable malware activity indicators in our data.

IDS Rule References

4 IDS / security rules reference TCP port 515. 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-admin (2), system-call-detect (1), attempted-dos (1).

Sample rule descriptions for TCP port 515:

• SERVER-OTHER LPRng overflow
• OS-LINUX Redhat 7.0 lprd overflow
• SERVER-OTHER LPD dvips remote command execution attempt
• OS-WINDOWS Microsoft Windows TCP print service overflow attempt

Data Sources

This information is compiled from: IANA Service Name and Transport Protocol Port Number Registry and Snort Community Rules (GPLv2).