huntrule

Azure AD PIM Redundant Assignment Alert When Privileged Role Not Used

Alerts on Azure PIM redundant privileged role assignments where the assigned role appears unused.

FreeReviewedSigma · High · v5
Product
azure
Service
pim
Author
Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo' (SigmaHQ), DRL 1.1
Published
2023-09-14
Updated
2026-07-31
AnalysisDetection

ATT&CK techniques

Initial Access → 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 matches a privileged identity management risk event indicating a redundant assignment alert incident, where a user has been assigned a privilege role but is not using it. Attackers may exploit unused privileged access as a persistence or privilege-escalation opportunity, since dormant permissions can remain available longer than intended. The detection relies on Azure PIM telemetry reporting a riskEventType of redundantAssignmentAlertIncident.

Reporting behind it

Related detections9 linkedT1078 — drag to rearrange
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Suspicious Brutforce with Denied Access Due to Account Restrictions Policies (via security)
Suspicious Success Login Attempt on a Windows OpenSSH Server (via security)
Suspicious SQL Server - Connection Attempt Using a Disabled Account (via application)
Suspicious Lateral Movement Detection - Based on "special Groups" Feature (via security)
Suspicious Snowflake Anomalous Client Application Associated With UNC5537 (via cloud)
Malicious Network Login Performed to Multiple Targets (via security)
Malicious RDP Reconnaissance with Valid Credentials Performed on Multiple Hosts (via security)
Malicious Local Administrator Added by Atera RMM Agent
Azure AD PIM Redundant Assignment Alert When Privileged Role Not Used
Pivot detection · T1078 · 9 related

Changelog

v5
  1. v5
    Candidate ingested via manual entry.2026-07-31
  2. v4
    Candidate ingested via manual entry.2026-07-31
  3. v3
    Candidate ingested via manual entry.2026-07-31
  4. v2
    Candidate ingested via manual entry.2026-07-31
  5. v1
    No changelog recorded for this version.2026-07-30

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