T0893 Data from Local System — Detection Rules

Source-backed rule directory

No reviewed association in this snapshot.

Atlas deterministic concepts

No exact concept selected.

Anomaly models

No exact Atlas model in this snapshot.

ATT&CK analytic guidance

DET0749 Detection of Data from Local System

AN1881 Analytic 1881

Monitor Windows Security Event ID 4663 on explicitly audited ICS data paths and correlate repeated ReadData/ListDirectory access across multiple sensitive files or directories by an account/process outside the approved engineering, backup, or application baseline. This requires Object Access auditing and SACLs on the monitored paths; Sysmon does not provide generic file-read telemetry. Alert when the bulk-read pattern occurs outside an approved backup/export window or is followed by staging, compression, or network transfer.

AN2137 Analytic 2137

Real-time monitoring identifies a Linux process performing sequential reads across multiple ICS configuration or data paths by a UID outside approved backup, engineering, or vendor-application accounts. 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.

AN2174 Analytic 2174

Real-time monitoring identifies large outbound data transfers from Industrial Control System (ICS) server Internet Protocol (IP) addresses to destinations outside the approved ICS zone, following a pattern of bulk reads from engineering document stores or historian databases. 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.

AN2244 Analytic 2244

Real-time monitoring identifies Industrial Control System (ICS) protocol sessions that bulk-read configuration data, program blocks, or data record objects from field devices -- function code sequences retrieving entire data dictionaries rather than operational process values -- from a source with no prior history of configuration-read sessions. 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.