Threat report

www.mandiant.com/resources/blog/detecting-microsoft-365-azure-active-directory-backdoors

https://www.mandiant.com/resources/blog/detecting-microsoft-365-azure-active-directory-backdoors

Published on: www.mandiant.com

ATT&CK techniques those detections carry

T1484.002Trust Modification
T1098Account Manipulation

3 published detections cite this

Citing it, not covering it: each of these was written with this as evidence, and carries the source it came from and the licence it was published under.

Detections citing this reference
Detection	Severity	Source	Published	Licence
Azure AD User ImmutableId Attribute Updated	Medium	Splunk security content	Aug 26, 2026	Apache License 2.0
Azure AD New Federated Domain Added	Medium	Splunk security content	Aug 26, 2026	Apache License 2.0
Azure AD New Custom Domain Added	Medium	Splunk security content	Aug 26, 2026	Apache License 2.0

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