11/10/2023 0 Comments Rules of sigma![]() Note: In this blog SIEM is used to describe any platform used to collect and search on logs. Researchers in the offensive security space wanting to create detections based on their research.Avoid vendor-lock in, by defining rules in a SIGMA we can more easily move between platforms. ![]() MSSP / MDR responsible for multiple SIEM / EDR / Log Analytics solutions & data taxonomies/schemas (ECS, CEF, CIM, etc).Researchers and intelligence teams who identify new adversary behaviors and want an agnostic way of sharing detections.With SIGMA, defenders are freed from vendor & platform specific detection language and repositories and can harness the power of the community to respond timely to critical threats and new adversary tradecraft. SIGMA allows defenders to share detections (alerts, use cases) in a common language.įirst released in 2017 by Florian Roth and Thomas Patzke, SIGMA is paving the way forward for platform agnostic search. Much like YARA, or Snort Rules, SIGMA is another tool for the open sharing of detection, except focused on SIEM instead of files or network traffic. This is not sustainable, the defensive cyber security community must improve how we share detections to keep pace with our ever-evolving adversaries. Partners wishing to share detection content often had to translate a query from one vendor into another. In the past, SIEM detections existed in vendor / platform specific silos. A short discussion on detection engineering with SIGMA is also provided regarding noise, ideas, log sources, etc. ![]() This blog post argues for SIGMA as a detection language, covers the most critical SIGMA rule components (logsource & detection), SIGMA taxonomy, testing SIGMA Rules, and generally prepares analysts who are new to SIGMA to write their first rules.
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