# YARA Rules Skill

> YARA rule creation, testing, and deployment

- Skill: `a5c-ai/yara-rules-skill` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add a5c-ai/yara-rules-skill`
- Raw SKILL.md: https://api.skillmd.com/api/skills/a5c-ai/yara-rules-skill/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: a5c-ai (https://skillmd.com/u/a5c-ai)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/a5c-ai/yara-rules-skill

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# YARA Rules Skill

## Overview

This skill provides capabilities for YARA rule creation, testing, and deployment for malware detection and threat hunting.

## Capabilities

- Generate YARA rules from samples
- Validate YARA rule syntax
- Test rules against sample sets
- Optimize rules for performance
- Create rule metadata and documentation
- Support YARA modules (PE, ELF, etc.)
- Integrate with VirusTotal YARA
- Generate Sigma rules for correlation

## Target Processes

- malware-analysis.js
- threat-intelligence-research.js
- security-tool-development.js

## Dependencies

- YARA CLI
- yara-python library
- VirusTotal API (optional)
- Sample malware corpus (for testing)

## Usage Context

This skill is essential for:
- Malware detection rule development
- Threat hunting operations
- IOC-based detection
- Malware family classification
- Automated sample triage

## Integration Notes

- Rules can be tested against known good/bad samples
- Performance metrics help optimize detection speed
- Supports rule versioning and documentation
- Can export to multiple detection platforms
- Integrates with YARA-L for Chronicle