There is no description of Yara-Signature yet. There is also no description at this point. There has been no Yara’s signature yet. There is currently no description for the Yara project. There are currently no plans to publish a description of the project. There are no plans for the project to use Yara in the U.S. Yara is currently being developed in New York City, New York, New Jersey, with a new website called Yaras.”]
Source: https://malpedia.caad.fkie.fraunhofer.de/details/win.stealthworker