Rule Category

PROTOCOL-SCADA -- Snort alerted on SCADA protocol activity. SCADA is used in Industrial Control Systems (ICS), programmable logic controllers for large scale systems, such as water treatment facilities. SCADA systems often require no authentication and use generic commands that are hard to screen for. Snort rules look for specific hardware and the traffic protocols they use, as these are often tied to a specific port or URI request.

Alert Message

PROTOCOL-SCADA IEC 104 double command issued

Rule Explanation

This event is generated when specific IEC 104 message types are detected. Impact: Generic Protocol Command Decode Details: Ease of Attack:

What To Look For

Known Usage

No public information

False Positives

No known false positives


Cisco Talos Intelligence Group

MITRE ATT&CK Framework



For reference, see the MITRE ATT&CK vulnerability types here:

Additional Links

Rule Vulnerability

CVE Additional Information