Azure Conditional Access Policy Added by Non-approved Actor

Alerts on Azure audit log events indicating a Conditional Access policy was added.

FreeReviewedSigma · Medium · v5
Product
azure
Service
auditlogs
Author
Corissa Koopmans, '@corissalea' (SigmaHQ), DRL 1.1
Published
2022-07-18
Updated
2026-07-31

ATT&CK techniques

Priv Esc → Defense Evasion
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule alerts when a conditional access policy is added, based on the audit message text matching “Add conditional access policy.” Creating or modifying conditional access policies can be used to weaken or bypass authentication controls, enabling further privilege escalation. Detection relies on Azure audit log records that include the specific policy-add message and associates it with the acting identity for investigation.

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Azure Conditional Access Policy Added by Non-approved Actor
Pivot detection · T1548 · 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.