TCP Port 5938

About TCP Port 5938

Port 5938 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 8 IDS rules and exhibits high malware activity indicators. Ports outside formal IANA assignment are commonly used by malware authors and security tooling.

IDS Rule References

8 IDS / security rules reference TCP port 5938. Presence in IDS rules does not mean traffic on this port is malicious. These are patterns security tools monitor.

Rule categories (top 2): trojan-activity (5), command-and-control (3).

Sample rule descriptions for TCP port 5938:

• ET MALWARE Backdoor family PCRat/Gh0st CnC traffic
• ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 104
• ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 106
• ET MALWARE [ANY.RUN] RisePro TCP (Token)
• ET MALWARE [ANY.RUN] RisePro TCP (External IP)

Malware Activity

Malware activity is frequently observed on this port.

8 of 8 IDS rules for TCP port 5938 involve malware activity.

Families observed (top 3): RisePro (5), Gh0st (3), PCRAT (3).

Data Sources

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