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ADFS DKM Master Key Export

Identifies an export of the ADFS DKM Master Key from Active Directory. References: https://blogs.microsoft.com/on-the-issues/2020/12/13/customers-protect-nation-state-cyberattacks/,…

Description

Identifies an export of the ADFS DKM Master Key from Active Directory. References: https://blogs.microsoft.com/on-the-issues/2020/12/13/customers-protect-nation-state-cyberattacks/, https://cloud.google.com/blog/topics/threat-intelligence/evasive-attacker-leverages-solarwinds-supply-chain-compromises-with-sunburst-backdoor To understand further the details behind this detection, please review the details in the original PR and subequent PR update to this: https://github.com/Azure/Azure-Sentinel/pull/1562#issue-551542469 https://github.com/Azure/Azure-Sentinel/pull/1512#issue-543053339

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSNetwork DevicesWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
microsoftthreatprotectionsecurityeventswindowsforwardedeventswindowssecurityevents
Log source service
deviceeventssecurityeventswindowsevent

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