ClaudSkills / Security / malware-analysis

Yara Rule Authoring

Quality score: 70/100  ·  Category: Security  ·  Sub-category: malware-analysis
type:review
Guides authoring of high-quality YARA-X detection rules for malware identification. Use when writing, reviewing, or optimizing YARA rules. Covers naming conventions, string selection, performance optimization, migration from legacy YARA, and false positive reduction. Triggers on: YARA, YARA-X, malware detection, threat hunting, IOC, signature, crx module, dex module.

What this skill does

Yara Rule Authoring is a production-ready Claude Code skill (quality score 70/100) in the malware-analysis sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/yara-rule-authoring/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when writing, reviewing, or optimizing YARA rules. Covers naming conventions, string selection, performance optimization, migration from legacy YARA, and false positive reduction.

Who uses this skill

The Yara Rule Authoring skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/yara-rule-authoring
curl -L https://claudskills.com/skills/yara-rule-authoring/SKILL.md \
  -o ~/.claude/skills/yara-rule-authoring/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/yara-rule-authoring/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/yara-rule-authoring/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\yara-rule-authoring\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Part of ClaudSkills — the open registry for Claude Code skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt