Malicious RBCD Delegation Attribute Modification
- Product
- windows
- Service
- security
- Author
- HuntRule
- Published
- 2026-10-17
- Updated
- 2026-10-17
ATT&CK techniques
Priv Esc → Defense EvasionRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects modification of the msDS-AllowedToActOnBehalfOfOtherIdentity directory attribute, the write that configures resource-based constrained delegation and grants an attacker-controlled account the ability to impersonate users to a target host. Changes to this attribute outside sanctioned delegation management are a high-fidelity indicator of RBCD privilege escalation.
Reporting behind it
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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