Suspicious Disabling of Restricted Admin Mode via Registry (via registry_set)

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 modification of the DisableRestrictedAdmin LSA registry value which controls Restricted Admin mode for RDP. Ransomware operators set this to enable pass-the-hash style lateral movement over RDP without supplying plaintext credentials. Weakening this control aids credential reuse and lateral movement across the estate before encryption.

Reporting behind it

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Suspicious Disabling of Restricted Admin Mode via Registry (via registry_set)

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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