TCP Port 6664

About TCP Port 6664

Port 6664 is not assigned to any service in the IANA Service Names and Port Numbers Registry. Ports in this numerical range can be assigned by IANA but this specific port has no current registration. It is referenced in 4 IDS rules and exhibits low malware activity indicators. Ports outside formal IANA assignment are commonly used by malware authors and security tooling.

IDS Rule References

4 IDS / security rules reference TCP port 6664. Presence in IDS rules does not mean traffic on this port is malicious. These are patterns security tools monitor.

Rule categories (top 2): policy-violation (3), trojan-activity (1).

Sample rule descriptions for TCP port 6664:

• ET MALWARE IRC DCC chat request on non-standard port
• ET MALWARE IRC Channel join on non-standard port
• ET MALWARE IRC DNS request on non-standard port
• ET MALWARE IRC Bot Download http Command

Malware Activity

Some malware indicators are observed on this port.

4 of 4 IDS rules for TCP port 6664 involve malware activity.

Data Sources

This information is compiled from: Emerging Threats Open Ruleset (BSD 2-Clause / GPLv2 per SID range).