TCP Port 778

About TCP Port 778

Port 778 is not assigned to any service in the IANA Service Names and Port Numbers Registry. While most ports below 1024 are assigned to canonical services, this specific port has no current IANA registration. It is referenced in 3 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

3 IDS / security rules reference TCP port 778. Presence in IDS rules does not mean traffic on this port is malicious. These are patterns security tools monitor.

Rule categories (top 1): trojan-activity (3).

Sample rule descriptions for TCP port 778:

• MALWARE-CNC Win.Trojan.Dropper inbound encrypted traffic
• MALWARE-CNC Win.Trojan.Dropper outbound encrypted traffic – potential exfiltration
• MALWARE-CNC Win.Trojan.Dropper outbound encrypted traffic

Malware Activity

Some malware indicators are observed on this port.

3 of 3 IDS rules for TCP port 778 involve malware activity.

Data Sources

This information is compiled from: Snort Community Rules (GPLv2).