Suspicious Anti-VM WMI Thermal Zone Temperature Query via Command Line

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-20
Updated
2026-09-20

ATT&CK techniques

Defense Evasion → Discovery
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects a WMI query against MSAcpi_ThermalZoneTemperature, an anti-VM sandbox-evasion check that fails inside most virtual machines. StealC delivered through deceptive Google Sheets uses this probe before unpacking. Detecting the query reveals evasion logic running prior to payload execution.

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Suspicious Anti-VM WMI Thermal Zone Temperature Query via Command Line
Pivot detection · T1497.001 · 7 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.