Sigma rule: Suspicious Inbox Forwarding Identity Protection
A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-164afe012672, updated 2023-09-03T00:00:00.000Z.
Rule
- Title
- Suspicious Inbox Forwarding Identity Protection
- Status
- test
- Level
- high
- Author
- Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
- Date
- 2023-09-03
- File
- rules/cloud/azure/identity_protection/azure_identity_protection_inbox_forwarding_rule.yml
- Commit
- ccbb0369507f796db0b0ae6854c8a2be471b9d84
Indicates suspicious rules such as an inbox rule that forwards a copy of all emails to an external address
Log source
- product
- azure
- service
- riskdetection
Detection
selection:
riskEventType: 'suspiciousInboxForwarding'
condition: selectionFalse positives (as the rule lists them)
- A legitimate forwarding rule.
Tags
- attack.t1114.003
- attack.collection
MITRE ATT&CK ids this rule names
References
- https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#suspicious-inbox-forwarding
- https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
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/identity_protection/azure_identity_protection_inbox_forwarding_rule.yml
Sources and licences
SigmaHQ
"Suspicious Inbox Forwarding Identity Protection" by Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo' (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/cloud/azure/identity_protection/azure_identity_protection_inbox_forwarding_rule.yml.
Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License
Cite this page
Dragons Eye Ransomware Tracker, "Sigma rule: Suspicious Inbox Forwarding Identity Protection",
entity page, dataset version ref-164afe012672, updated 2023-09-03T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/27e4f1d6-ae72-4ea0-8a67-77a73a289c3d (accessed 2026-11-03).
Underlying source: SigmaHQ rule 27e4f1d6-ae72-4ea0-8a67-77a73a289c3d, 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.