[Detection Engineering in My Home Lab] Series 1 ~Building 20+ Sigma Rules for Multi-Source Threat Detection~

In this series, you will learn how to build a Detection Engineering pipeline from scratch using your home lab. Series 1 covers writing Sigma rules across multiple data sources. Photo by Taylor Vick on Unsplash Disclaimer: All content in this article is based on experiments conducted in my personal home lab and test environment. This work is not affiliated with, endorsed by, or related to any company I currently work for or have worked for. All opinions are my own. What is Detection Engineering? Detection Engineering is the practice of designing, building, testing, and maintaining threat detection logic as code. Instead of relying on out-of-the-box vendor alerts, you write custom detection rules tailored to your environment. Key concepts: Detection-as-Code — Detection logic stored in version control (Git) Sigma Rules — Open standard for detection rules, portable across SIEMs MITRE ATT&CK — Framework for mapping detection coverage to adversary techniques Why Sigma? Sigma is to log detect