🌟Add custom YARA signatures

Custom YARA signatures can be saved to the data/yara directory. Any valid YARA rule saved here will be loaded when the yara scanner loads.

Vigil returns the following information when a prompt matches a YARA signature:

• Rule name

• Rule tags

• Rule category

  • "category" metadata field

Sample Rule Template

rule MyRule_custom: customTag
{
    meta:
        category = "Prompt Injection"
        description = "Detects prompts that contain some custom strings"
    strings:
        ...
    condition:
        ...
}