TCP Port 9875 – sapv1

About TCP Port 9875

Port 9875 carries the IANA assignment for sapv1. The IANA description reads: ‘Session Announcement v1’. This port is referenced in 2 IDS rules and exhibits low malware activity in monitored traffic.

IDS Rule References

2 IDS / security rules reference TCP port 9875. 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 1): command-and-control (2).

Sample rule descriptions for TCP port 9875:

• ET MALWARE Win32/Recslurp.D C2 Request (no alert)
• ET MALWARE Win32/Recslurp.D C2 Response

Malware Rule References

A small share of the IDS rules that reference this port are malware related.

2 of the 2 IDS rules that reference TCP port 9875 are malware related. That describes detection coverage across the whole internet, not anything about your machine or your network.

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

Data Sources

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