Sigma rule: Bulk Deletion Changes To Privileged Account Permissions

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-0821df0a3171, updated 2022-08-05T00:00:00.000Z.

Rule

Title
Bulk Deletion Changes To Privileged Account Permissions
Status
test
Level
high
Author
Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H'
Date
2022-08-05
File
rules/cloud/azure/audit_logs/azure_priviledged_role_assignment_bulk_change.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects when a user is removed from a privileged role. Bulk changes should be investigated.

Log source

product
azure
service
auditlogs

Detection

selection:
    properties.message:
        - Remove eligible member (permanent)
        - Remove eligible member (eligible)
condition: selection

False positives (as the rule lists them)

  • Legtimate administrator actions of removing members from a role

Tags

  • attack.privilege-escalation
  • attack.persistence
  • attack.t1098

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/azure/audit_logs/azure_priviledged_role_assignment_bulk_change.yml

Sources and licences

  • SigmaHQ

    "Bulk Deletion Changes To Privileged Account Permissions" by Mark Morowczynski '@markmorow', Yochana Henderson, '@Yochana-H' (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/azure/audit_logs/azure_priviledged_role_assignment_bulk_change.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Bulk Deletion Changes To Privileged Account Permissions",
entity page, dataset version ref-0821df0a3171, updated 2022-08-05T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/102e11e3-2db5-4c9e-bc26-357d42585d21 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 102e11e3-2db5-4c9e-bc26-357d42585d21, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.