Analytic 2250

Real-time monitoring identifies Hypertext Transfer Protocol (HTTP) requests to an embedded Human-Machine Interface (HMI) panel's built-in web server capturing screen images, or Virtual Network Computing (VNC) connections to embedded HMI panels, from source Internet Protocol (IP) addresses not in the approved operator workstation list. OT operational-fidelity gate: Do not alert on novelty, scan/read volume, or enumeration alone. Alert when the source role is not authorized for discovery/polling and the target scope, address/tag range, protocol, or rate deviates from the established operational baseline. Suppress normal SCADA/HMI/historian polling, commissioning, asset inventory, backup, diagnostics, and approved engineering activity.

1. Übersicht

1.1 Referenzen

1.2 Identifizierte Anforderungen

1.3 Zugehörige Regulierungen

2. Identifizierte Anforderungen

3. Zugehörige Regulierungen

Verknüpfte Vorgänge

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