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KQL Query Generation — Save for Reuse

The prompt
Write a KQL query for Microsoft Sentinel (or Defender XDR advanced hunting — specify which) that detects the following behaviour: [DESCRIBE THE BEHAVIOUR IN PLAIN LANGUAGE].

Requirements:
- The query should cover a configurable time window (use a variable at the top for easy adjustment)
- Include comments explaining each major section
- Return results as a table with columns: timestamp, entity (user or device), action, source, and severity if applicable
- Include a count of events per entity so I can identify which entities are generating the most hits

After the query, add a one-paragraph explanation of the detection logic and any known false positive scenarios I should filter out.

How to use it

  1. 1Select Copy the prompt above.
  2. 2Paste it into Microsoft 365 Copilot.
  3. 3Replace anything in brackets with your own detail, then send it.

Copilot gathers and drafts. You verify and decide. Check every figure, name and date against the system it came from before you act on it.

Written for

Threat Hunter, SOC Analyst L3, Detection Engineer