Malicious Enabling of Restricted Admin Mode via Registry by UAT-8837

ATT&CK techniques

Persistence → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1112Modify Registry
Priv Esc
Defense Evasion
- T1112Modify Registry
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects setting the DisableRestrictedAdmin value to zero under the Lsa key which enables Restricted Admin mode for RDP. UAT-8837 modifies this setting to enable pass-the-hash style network logons over Remote Desktop. Enabling Restricted Admin mode lets an actor authenticate with stolen hashes without knowing plaintext credentials.

Reporting behind it

Related detections9 linkedT1112 — drag to rearrange

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PowerShell Storing an Encoded Payload in the Registry (via process_creation)

Malicious Enabling of Restricted Admin Mode via Registry by UAT-8837

Pivot detection · T1112 · 9 related

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

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