Building a Detection Foundation: Part 5 - Correlation in Practice

This article outlines a Windows detection foundation—covering Event Log auditing, PowerShell and Sysmon telemetry—and shows how to correlate events (using LogonID, process parent chains, and network connections) to detect and investigate incidents. It presents a realistic PowerShell download-cradle example that connects to a C2, demonstrates step-by-step investigation flow, and provides Sigma-style rules and playbook guidance for building correlated detections and scoping impact.