01 - Sigma Rules: Universal Detection Logic & SIEM Conversion

Writing Sigma rules for universal detection: YAML syntax, logsource mapping and automatic conversion for Splunk, Elastic and Sentinel.

What you'll learn

• What is Sigma and Why It Became the Standard
• Anatomy of a Sigma Rule
• Mandatory Fields and Metadata
• Logsource: The Heart of Portability
• Advanced Modifiers

This article is part of the Detection Engineering series on federicocalo.dev.

Read the full article

The complete article (26 min read) with code examples, diagrams, and practical exercises is available here:

➡️ 01 - Sigma Rules: Universal Detection Logic & SIEM Conversion

https://federicocalo.dev/en/blog/sigma-rules-universal-detection-logic-siem-conversion

By Federico Calò — Software Developer & Technical Writer