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  1. Rules | Sigma Detection Format

    Sigma rules are YAML files that contain all the information required to detect odd, bad or malicious behaviour when inspecting log files – usually within the context of a SIEM.

  2. GitHub - SigmaHQ/sigma: Main Sigma Rule Repository

    Sigma is a generic and open signature format that allows you to describe relevant log events in a straightforward manner. The rule format is very flexible, easy to write and applicable to any …

  3. Sigma Rules: Your Guide to Threat Detection’s Open Standard

    Jan 28, 2025 · This blog explains everything you wanted to know about Sigma rules, including how Sigma rules are structured, their predecessors and benefits, and how to integrate them …

  4. What Are Sigma Rules? Threat Detection and Response

    Nov 26, 2025 · Sigma rules are open-source, generic signature formats used in cybersecurity, specifically for the creation and sharing of detection methods across Security Information and …

  5. The Ultimate Guide to Sigma Rules - Graylog

    Feb 18, 2025 · Sigma rules are an open-source, platform agnostic format for building high-fidelity detections and engaging in proactive threat hunting so you can mature your security posture …

  6. What Are SIGMA Rules: Beginner’s Guide - SOC Prime

    May 16, 2022 · Let’s Create a Simple SIGMA Rule! This blog post argues for SIGMA as a detection language, covers the most critical SIGMA rule components (logsource & detection), …

  7. Getting Started | Sigma Detection Format

    This guide provides step-by-step instructions on how to set up Sigma and convert its rules into different SIEM formats. It also includes some basic configuration tips to help you make the …

  8. Sigma rules explained: When and how to use them to log events

    Jun 16, 2022 · Sigma rules are textual signatures written in YAML that make it possible to detect anomalies in your environment by monitoring log events that can be signs of suspicious …

  9. Detecting malicious activities with Sigma rules - Splunk Lantern

    Using Sigma rules can help you apply these more sophisticated detection tactics. Sigma is a useful tool for sharing threat detection information, focused on detecting anomalies in log data …

  10. What Are Sigma Rules? Threat Detection and Response - Cymulate

    Aug 31, 2025 · Sigma Rules are YAML-written textual signatures designed to identify suspicious activity potentially related to cyber threat anomalies in log events. One of the main advantages …