Whoami Execution

Severity mediumWindowsSingle eventexperimentalsigma.whoami_execution · v1.0.0

What it detects

Flags activity matching the SigmaHQ rule “Whoami Execution” — MITRE ATT&CK T1033, System Owner/User Discovery.

MITRE ATT&CK mapping

  • T1033System Owner/User Discovery· Discovery

False positives and triage

Converted from Sigma; review before enabling.

The rule

Declarative YAML read by the detection engine — data, never executed. Confidence 60%. Source: rules/sigma/sigma.whoami_execution.yaml, licensed under the Detection Rule License 1.1.

id: sigma.whoami_execution
version: 1.0.0
status: experimental
severity: medium
confidence: 0.6
platforms:
- windows
mitre_techniques:
- T1033
description: Whoami Execution (Sigma sample)
match:
  event_category: process
  process_path_contains_any:
  - \whoami.exe
false_positive_guidance: Converted from Sigma; review before enabling.

Adapted from the SigmaHQ rule “Whoami Execution”, distributed under the Detection Rule License 1.1. SigmaHQ.

Run this rule on your own logs — offline

KIROSEC runs this rule and the rest of the library over Windows, Linux, macOS and cloud audit logs on the analyst's own machine. Every alert links to the events that raised it, and nothing leaves the device.

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