detecting-modbus-command-injection-attacks - Detect Modbus command injection attacks
Detects Modbus TCP/RTU command injection through unauthorized writes, anomalous function codes, malformed frames, and baseline deviations.
Tags
Updated: 2026-10-06Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Build Modbus communication baselines
- Parse Modbus TCP frames
- Detect unauthorized Modbus masters
- Detect unauthorized write operations
- Detect anomalous function codes
- Detect malformed Modbus frames
- Detect write-rate anomalies
- Generate Modbus security alerts
Inputs
- Modbus network traffic
- Modbus communication baseline
- PLC programming documentation
- Authorized master addresses
- Authorized register ranges
Outputs
- Modbus security alerts
- Baseline loading status
- Detected anomaly records
Requirements
- Network SPAN or TAP access
- Modbus-aware IDS deployment
- Enabled Modbus protocol parsers
- Python with Scapy installed
- Traffic capture permissions