Detectionmediumtest

Powershell Detect Virtualization Environment

Adversaries may employ various system checks to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch

François Hubaut, Duc.Le-GTSCCreated Tue Aug 03Updated Thu Mar 03d93129cd-1ee0-479f-bc03-ca6f129882e3windows

Log Source

WindowsPowerShell Script

ProductWindows← raw: windows

CategoryPowerShell Script← raw: ps_script

Definition

Requirements: Script Block Logging must be enabled

Detection Logic

detection:
    selection_action:
        ScriptBlockText|contains:
            - Get-WmiObject
            - gwmi
    selection_module:
        ScriptBlockText|contains:
            - MSAcpi_ThermalZoneTemperature
            - Win32_ComputerSystem
    condition: all of selection*

False Positives

Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References

MITRE ATT&CK

Tactics

TA0007 · Discovery TA0005 · Defense Evasion

Sub-techniques