What is GateSentry?
GateSentry is an open source intrusion detection and prevention system designed specifically for industrial control systems (ICS). It works by monitoring network traffic to PLCs, RTUs, IEDs and other ICS components to detect cyberattacks and anomalous behavior.
Some key features of GateSentry include:
- Protocol parsing and analysis for common ICS protocols like Modbus, DNP3, ICCP, and IEC 60870-5-104
- Rule-based intrusion detection using SNORT-compatible rules
- Anomaly detection based on protocol standards, typical ICS behavior, and whitelists
- Automatic blocking of suspected malicious traffic
- Visualization of ICS network activities and alerts
- Integration with SIEM tools for monitoring and analysis
GateSentry is designed to passively monitor ICS network traffic with minimal performance impact. It can help users gain visibility into their ICS components, improve cybersecurity, and detect attacks or anomalous operations. As an open source solution, GateSentry is free to install and modify.
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