↳ GitHub sourceAnalytics ruleMedium

Detecting UAC bypass - ChangePK and SLUI registry tampering

View on GitHub ↗Original file ↗

Description

This query identifies setting a registry key under HKCU, launching slui.exe and then ChangePK.exe.

Rule type: Scheduled
Version: 1.0.0
Declared status: Available
Query frequency: 1h
Query period: 1h
Trigger: gt 0

Declared MITRE coverage

Impact T1490

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

MicrosoftThreatProtection

Data types

DeviceProcessEvents

KQL query

Original query, unchanged.

DeviceProcessEvents
| where InitiatingProcessParentFileName =~ "slui.exe"
| where InitiatingProcessFileName =~ "changepk.exe"
| where ProcessIntegrityLevel == "High"

Declared entities

HostAccountProcess

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

File: Solutions/FalconFriday/Analytic Rules/UACBypass-3-changePK-SLUI-tampering.yaml ↗
Commit: 9800e51 ↗
Source identifier: 829a69ba-93e1-491f-8a1f-b19506e9d88a

Additional source files 2

Solutions/FalconFriday/Analytic Rules/UACBypass-3-changePK-SLUI-tampering.yamlsource ↗Solutions/FalconFriday/Data/Solution_FalconFriday.jsonsolution-membership ↗

GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.