TCP Port 900 – omginitialrefs

About TCP Port 900

Port 900 is registered with the Internet Assigned Numbers Authority (IANA) for omginitialrefs. The IANA description reads: ‘OMG Initial Refs’. This port is referenced in 1 IDS rule and exhibits low malware activity in monitored traffic.

IDS Rule References

1 IDS / security rule reference TCP port 900. 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 (1).

Sample rule descriptions for TCP port 900:

• MALWARE-CNC Win.Trojan.Spyrat variant outbound connection

Malware Activity

Some malware indicators are observed on this port.

1 of 1 IDS rule for TCP port 900 involve malware activity.

Families observed (top 1): Spyrat (1).

Data Sources

This information is compiled from: IANA Service Name and Transport Protocol Port Number Registry and Snort Community Rules (GPLv2).