TCP Port 1556 – veritas-pbx

About TCP Port 1556

Port 1556 carries the IANA assignment for veritas-pbx. The IANA description reads: ‘VERITAS Private Branch Exchange
IANA assigned this well-formed service name as a replacement for "veritas_pbx".’. This port appears in 3 IDS rules and does not have notable malware activity indicators in our data.

IDS Rule References

3 IDS / security rules reference TCP port 1556. Presence in IDS rules does not mean traffic on this port is malicious. These are patterns security tools monitor.

Rule categories (top 1): web-application-attack (3).

Sample rule descriptions for TCP port 1556:

• ET EXPLOIT NB8-01 – Unauthed RCE via bprd
• ET EXPLOIT NB8-02 – Possible Unauthed RCE via nbbsdtar
• ET EXPLOIT NB8-04 – Possible Unauthed RCE via whitelist bypass

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).