Skill Flag Skill 🛡️

Scan Clawdbot/OpenClaw skills for malicious patterns, backdoors, and security risks.

Created by: DarkM00n (Bug Bounty Hunter & Security Researcher)

Commands

Scan All Installed Skills

scan skills
scan all skills
security scan

Scan Specific Skill

scan skill <skill-name>
check skill <skill-name>

Scan Before Installing (URL/Path)

scan skill url <clawdhub-url>
pre-scan <skill-name>

Quick Risk Report

skill risk report
security report

How To Use

Run the scanner:

python3 skills/skill-flag/scanner.py [--skill NAME] [--all] [--verbose]

Or ask the agent:

• "Scan all my installed skills for security issues"
• "Check if the crypto-tracker skill is safe"
• "Give me a security report"

What It Detects

Category	Risk Level	Examples
🔴 Data Exfiltration	CRITICAL	curl/wget to external domains, fetch(), requests.post()
🔴 Backdoors	CRITICAL	Reverse shells, nc -e, bash -i, encoded payloads
🔴 Credential Theft	CRITICAL	Access to ~/.ssh, ~/.aws, API keys, .env files
🟠 Prompt Injection	HIGH	"ignore previous", "system override", "new instructions"
🟠 Code Execution	HIGH	eval(), exec(), subprocess with shell=True
🟡 Persistence	MEDIUM	Cron jobs, systemd units, startup scripts
🟡 Obfuscation	MEDIUM	Base64 encoded commands, hex strings, rot13
🟢 Suspicious	LOW	Uncommon imports, network activity

Risk Score

Each skill gets a score from 0-100:

• 0-20: ✅ Clean - No issues found
• 21-40: 🟢 Low Risk - Minor concerns
• 41-60: 🟡 Medium Risk - Review recommended
• 61-80: 🟠 High Risk - Careful inspection needed
• 81-100: 🔴 Critical - Do not use without audit

Output

Reports saved to: skills/skill-flag/reports/

Example output:

🛡️ SECURITY SCAN REPORT
━━━━━━━━━━━━━━━━━━━━━━━
Scanned: 12 skills
Clean: 9
Warnings: 2
Critical: 1

⚠️ WARNINGS:
- crypto-tracker: External API calls (expected for price data)
- web-scraper: Uses requests library

🔴 CRITICAL:
- shady-skill: 
  - Line 45: curl to unknown domain
  - Line 67: Base64 encoded payload
  - Line 89: Reads ~/.ssh/id_rsa
  RECOMMENDATION: Remove immediately

Directories Scanned

1. ~/.clawdbot/skills/ - Global installed skills
2. ./skills/ - Workspace skills
3. ~/.npm-global/lib/node_modules/clawdbot/skills/ - Built-in skills

False Positives

Some legitimate skills need network access or file operations. The scanner flags them for review but doesn't auto-block. Use judgment:

• Price trackers → API calls expected ✓
• Email skills → Network access expected ✓
• File managers → File operations expected ✓

Pro Version (Coming Soon)

• Continuous monitoring
• ClawdHub pre-install scanning
• Custom whitelist/blacklist
• Scheduled reports
• Webhook alerts