huntrule

Windows Registry: UAC notification disabled via UACDisableNotify set to DWORD 0x00000001

Alerts on registry changes that disable UAC notifications by setting UACDisableNotify to 0x00000001 on Windows.

FreeReviewedSigma · Medium · v1
Product
windows
Category
registry_set
Author
frack113, Nasreddine Bencherchali (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2024-05-10
Updated
2026-07-30
AnalysisDetection

ATT&CK techniques

Priv Esc → Defense Evasion

  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule flags changes to the Windows registry that set the UACDisableNotify value under the UAC notification path to DWORD 0x00000001. Suppressing UAC notifications can help an attacker reduce user prompts and make it easier to carry out actions that would otherwise require user or administrator consent. It relies on telemetry from registry set events that capture the target registry path and the written DWORD data.

Reporting behind it

Related detections9 linkedT1548.002 — drag to rearrange
Malicious FodHelper UAC Bypass via ms-settings Shell Command Hijack (via registry_set)
Suspicious Banana RAT UAC Skip Environment Variable in PowerShell
Malicious UAC Bypass via sdclt Handler Hijack (via registry_set)
Malicious UAC Bypass via ms-settings Handler Hijack (via registry_set)
Malicious DBatLoader DLL Sideloading via easinvoker.exe Loading netutils.dll (via image_load)
Suspicious dllhost.exe Spawned with CLSID and Anomalous Parent (via process_creation)
Malicious ms-settings DelegateExecute UAC Bypass Registry Change
Malicious User Account Control Bypass via Auto-Elevating Binary Hijack (via process_creation)
Suspicious Mock Trusted Directory with Trailing Space (via process_creation)
Windows Registry: UAC notification disabled via UACDisableNotify set to DWORD 0x00000001
Pivot detection · T1548.002 · 9 related

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