KQL primer for Defender XDR

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KQL primer for Defender XDR

A practical introduction to Kusto Query Language for Microsoft Defender XDR and Sentinel hunting.

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What is KQL?

Kusto Query Language, the query language of Azure Data Explorer used across Defender XDR advanced hunting, Sentinel, Log Analytics, and Application Insights: pipe-based, readable, built for filtering and summarising lar…

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Which advanced hunting tables should I learn first?

DeviceProcessEvents, DeviceNetworkEvents, and DeviceFileEvents for endpoint; EmailEvents and EmailUrlInfo for mail; IdentityLogonEvents and AADSignInEventsBeta for identity; AlertInfo and AlertEvidence to pivot from ale…

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Can KQL queries become detections?

Yes. In Defender XDR, a hunting query can be saved as a custom detection rule that runs on a schedule and creates alerts with response actions; in Sentinel, the same query becomes a scheduled analytics rule that creates…

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