This repository is used to maintain the specification for the Sigma format.
The version number is in the form of 3 digits 'A.B.C':
- 'A' A major version that could break existing converters
- 'B' A minor version with additions or modifications of functionality affecting but not breaking the converters
- 'C' Reorganization of section, addition of examples etc.
The Sigma format specifications is described in the file Sigma_specification
There exists two other files in the repository to describe the different fields and tags to be used in Sigma rules:
- Tags_specification is a document that defines the standardized tags that can be used to categorize the different Sigma rules.
- Taxonomy_specification is a document that defines the different field names and log sources that should be used to ensure sharable rules
This section lists upcoming developments and changes to the standard. Please note:
- That it's still in a process of dictation and feedback.
- It is possible that some are added and then deleted before the finalization of the version.
Do not hesitate to open a discussion with tag V2 in the title. Example V2 proposal of new modifier X.
For more information, check the version_2 branch
Local copy sigmahq Specification wiki 2022/09/24 or the online sigmahq Specification wiki
The following files are not part of the sigma specification. They are only helpers for the management of the main rule repository
