TCP Port 8131 – indigo-vbcp

About TCP Port 8131

The Internet Assigned Numbers Authority (IANA) registers port 8131 for indigo-vbcp. The IANA description reads: ‘INDIGO-VBCP’. 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 8131. Presence in IDS rules does not mean traffic on this port is malicious. These are patterns security tools monitor.

Rule categories (top 1): command-and-control (1).

Sample rule descriptions for TCP port 8131:

• ET MALWARE Win32/RaaLoader CnC Activity

Malware Activity

Some malware indicators are observed on this port.

1 of 1 IDS rule for TCP port 8131 involve malware activity.

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

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).