Question : yara to stix conversion

[wehbemariam]

Hello,

Is there a tool that convert yara rules conversion to STIX 2.1objects while fully respecting the STIX 2.1 specification (i.e. generating well-structured indicator objects with proper fields like pattern, pattern_type, valid_from, and appropriate observable mappings). To be compatible with tools like STIX 2.1, Python library or OpenCTI.

I tried the converter https://github.com/muchdogesec/yara2stix but unfortunately it produces output that does not align properly with the STIX 2.1 standard and lacks semantic structure.

I’d be very grateful if anyone knows such a tool or has worked on it and could share it or even point me toward documentation, examples, or prototypes.

Thank you