Detectioncriticalstable

HackTool - Empire PowerShell UAC Bypass

Detects some Empire PowerShell UAC bypass methods

Convert In Phoenix Studio

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

Launch

EccoCreated Fri Aug 30Updated Tue Feb 213268b746-88d8-4cd3-bffc-30077d02c787windows

Log Source

WindowsProcess Creation

ProductWindows← raw: windows

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

detection:
    selection:
        CommandLine|contains:
            - ' -NoP -NonI -w Hidden -c $x=$((gp HKCU:Software\Microsoft\Windows Update).Update)'
            - ' -NoP -NonI -c $x=$((gp HKCU:Software\Microsoft\Windows Update).Update);'
    condition: selection

False Positives

Unknown

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

References

MITRE ATT&CK

Tactics

TA0005 · Defense Evasion TA0004 · Privilege Escalation

Sub-techniques