Code & Scripts

Windows Event Log Analysis Field Guide for Sysadmins

A practical reference guide covering the 20 most critical Windows Event IDs every sysadmin must monitor — with detection logic, triage steps, and copy-paste PowerShell queries for each.

A practical reference guide covering the 20 most critical Windows Event IDs every sysadmin must monitor — with detection logic, triage steps, and copy-paste PowerShell queries for each.

What's Inside

  • 📦Field Guide (guide.md) — 20 Event ID entries organized by threat category (Authentication & Account, Privilege & Access, Operational & Integrity), each with detection logic, triage steps, and a ready-to-run PowerShell query
  • 📦PowerShell Query Pack (queries.ps1) — All 20 queries as dot-sourceable functions with zero-result handling and convenience wrappers — drop them into your existing scripts
  • 📦Quick Reference Card (quick-reference-card.md) — A printable one-page cheat sheet: every Event ID, severity level, log source, threshold signal, and first action
  • 📦Scope & Decisions (build-notes.md) — Bonus transparency doc: the six Event IDs that were considered and cut, and the technical accuracy rationale behind each query choice
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Quality Score

10/10