Microsoft XDR, KQL, real-world security engineering, and other fun stuff from DevSecOpsDad, your friendly neighbourhood Attack Surface Samurai.

  • Kql Of The Week: Argamal Beaconing

    Every week our Detection Engineering Brief turns fresh threat intel into deployable detection content — KQL for Microsoft Sentinel and Defender XDR, ATT&CK mappings, triage runbooks, and deployment-readiness calls. This week’s five briefs produced 23 KQL candidates across npm supply-chain attacks, NetSupport RAT, a macOS FlutterShell dropper chain, a Key... [Read More]
  • 🛠️ Kql Toolbox #7: From Detection Coverage To Response Reality

    Welcome back to KQL Toolbox 👋 So now comes the unavoidable next question: Are our detections actually aligned to how attackers operate — and are we getting faster at shutting them down? This is where many SOCs stall out… They collect alerts, map techniques, and celebrate coverage — but never... [Read More]
  • 🛠️ Kql Toolbox #5: Phishing & Malware Hunting

    Welcome back to KQL Toolbox 👋 In KQL Toolbox #1, we learned how to measure Microsoft Sentinel ingest and translate it into real operational dollars. In KQL Toolbox #2, we identified which data sources were driving that cost. In KQL Toolbox #3, we drilled all the way down to specific... [Read More]