Analytic 1884

Real-time monitoring identifies an Industrial Control System (ICS) protocol session consistent with a program download to a field device from a source not in the approved engineering workstation list, correlated with a device mode-change alarm transitioning to PROGRAM/STOP immediately preceding the transfer. Documented in Stuxnet (code/data block download to alter programmable logic controller behavior) and Triton (TriStation protocol program download to the Triconex Safety Instrumented System). OT operational-fidelity gate: Alert only when the action is not attributable to an authorized operator/engineering source for the specific target and function, and it is either outside an approved change/maintenance window or lacks matching change-control context; where telemetry permits, require corroborating device, configuration, or process-state effect. Suppress activity that fully matches approved maintenance, commissioning, failover, recovery, or tested control procedures.

1. Ülevaade

1.1 Viited

1.2 Tuvastatud nõuded

1.3 Seotud regulatsioonid

2. Tuvastatud nõuded

3. Seotud regulatsioonid

Lingitud teemad

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