TCP Port 9100 – hp-pdl-datastr

About TCP Port 9100

The Internet Assigned Numbers Authority (IANA) registers port 9100 for hp-pdl-datastr. The IANA description reads: ‘PDL Data Streaming Port’. This port is referenced in 4 IDS rules and exhibits low malware activity in monitored traffic.

IDS Rule References

4 IDS / security rules reference TCP port 9100. Presence in IDS rules does not mean traffic on this port is malicious. These are patterns security tools monitor.

Rule categories (top 3): command-and-control (2), attempted-admin (1), misc-activity (1).

Sample rule descriptions for TCP port 9100:

• POLICY-OTHER HP JetDirect LCD modification attempt
• ET MALWARE Win32/Recslurp.D C2 Request (no alert)
• ET MALWARE Win32/Recslurp.D C2 Response
• ET EXPLOIT HP Printer Attempted Path Traversal via PJL

Malware Activity

Some malware indicators are observed on this port.

2 of 4 IDS rules for TCP port 9100 involve malware activity.

Families observed (top 1): Win32_Recslurp_D (2).

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).