Analytic 2289

Real-time monitoring identifies network traffic to Industrial Control System (ICS) Application Programming Interface (API) ports such as 4840 used in the Open Platform Communications (OPC) Unified Architecture (UA) or vendor-specific API ports from source Internet Protocol (IP) addresses not in the approved application client list, where the traffic pattern is consistent with write/control method invocations rather than subscription/read traffic. OT operational-fidelity gate: Alert only when execution violates an approved signer/hash/path/parent/process or tool allowlist, or originates from an unauthorized user/tool, and is tied to an OT asset or follow-on OT-relevant action. Suppress vendor-signed software, approved engineering utilities, diagnostics, patching, backup, and documented maintenance.

1. Apžvalga

1.1 Nuorodos

1.2 Nustatyti reikalavimai

1.3 Susiję teisės aktai

2. Nustatyti reikalavimai

3. Susiję teisės aktai

Susietos užduotys

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