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HighSigmaHQ Nasreddine Bencherchali (Nextron Systems) +1

Possible Shadow Credentials Added

Detects possible addition of shadow credentials to an active directory object.

Detection logic

Detection requirements

Platform: IaaS Identity Provider Linux macOS Network Devices Office Suite SaaS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source service: security

Known benign triggers

Modifications in the msDS-KeyCredentialLink attribute can be done legitimately by the Azure AD Connect synchronization account or the ADFS service account. These accounts can be added as Exceptions. (From elastic FP section)

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
cyberstoph.org/posts/2022/03/detecting-shadow-credentials/	Unclassified	2from 2 sources
twitter.com/SBousseaden/status/1581300963650187264?	Social post	Only this detection cites it
www.elastic.co/guide/en/security/8.4/potential-shadow-credentials-added-to-ad-object.html	Product documentation	Only this detection cites it

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