qcasares/saas-app/agent-security-monitor

Agent Security Monitor

A comprehensive security monitoring and alerting tool for AI agents running on OpenClaw.

What It Does

Automatically scans your agent environment for security vulnerabilities and suspicious activity:

1. Exposed Secrets Detection

• Scans .env files and secrets.* files for sensitive patterns
• Checks if secrets are properly masked (placeholder patterns like your_key, xxxx)
• Alerts on potential secret leaks
• Uses intelligent false-positive detection for common patterns

1. Unverified Skills Detection

• Identifies skills without SKILL.md documentation
• Scans skill files for suspicious patterns (webhook.site, curl ., eval(), etc.)
• Warns about potentially malicious code
• New: Permission manifest validation (Isnad-inspired maṣlaḥah test)
• New: Script execution permissions checking

1. SSH Key Security

• Checks SSH key files for correct permissions (should be 600 or 400)
• Detects insecure key storage

1. Command History Monitoring

• Scans recent command history for suspicious patterns
• Alerts on .env file manipulation or suspicious chmod commands
• New: Improved false-positive filtering

1. Log File Protection

• Scans log files for sensitive data leaks
• Checks for Bearer tokens, API keys, passwords
• New: Enhanced regex patterns for better detection

1. Git Repository Safety

• Detects if secrets have been committed to git repositories

1. Supply Chain Protection (New)

• Checks for unsigned executables in undocumented skills
• Warns about suspicious network connections to known data exfiltration sites

Features

• ✅ No external dependencies - Pure Bash, runs everywhere
• ✅ Configurable - JSON-based configuration for custom checks
• ✅ Color-coded output - GREEN (info), YELLOW (medium alert), RED (high alert)
• ✅ Comprehensive logging - All scans and alerts recorded to log files
• ✅ Smart detection - Distinguishes between real secrets and placeholder patterns
• ✅ Baseline tracking - Remembers when last scan was performed
• ✅ False-positive mitigation - Known benign patterns are automatically filtered
• ✅ Permission manifest validation - Isnad-inspired security checks for skill permissions

Features

• ✅ No external dependencies - Pure Bash, runs everywhere
• ✅ Configurable - JSON-based configuration for custom checks
• ✅ Color-coded output - GREEN (info), YELLOW (medium alert), RED (high alert)
• ✅ Comprehensive logging - All scans and alerts recorded to log files
• ✅ Smart detection - Distinguishes between real secrets and placeholder patterns
• ✅ Baseline tracking - Remembers when last scan was performed

Installation

1. Copy this skill to your OpenClaw workspace:

``bash mkdir -p ~/openclaw/workspace/skills/agent-security-monitor ``

1. Run the monitor:

``bash ~/openclaw/workspace/skills/agent-security-monitor/scripts/security-monitor.sh ``

Usage

# Basic scan
security-monitor.sh
 
# Check status
security-monitor.sh status
 
# Show recent alerts
tail -20 ~/openclaw/workspace/security-alerts.log

Configuration

The monitor creates a configuration file at ~/.config/agent-security/config.json with the following structure:

{
  "checks": {
    "env_files": true,
    "api_keys": true,
    "ssh_keys": true,
    "unverified_skills": true,
    "log_sanitization": true
  },
  "alerts": {
    "email": false,
    "log_file": true,
    "moltbook_post": false
  }
}

Log Files

• Security Log: ~/openclaw/workspace/security-monitor.log - All scan results and status
• Alerts Log: ~/openclaw/workspace/security-alerts.log - High and medium alerts only

What It Protects Against

• 🚨 Credential exfiltration - Detects .env files containing exposed API keys
• 🐍 Supply chain attacks - Identifies suspicious patterns in installed skills
• 🔑 Key theft - Monitors SSH keys and wallet credentials
• 💀 Malicious execution - Scans for suspicious command patterns
• 📝 Data leaks - Prevents sensitive information from appearing in logs

Best Practices

1. Run regularly - Schedule this monitor to run daily or weekly
2. Review alerts - Check security-alerts.log frequently
3. Update configuration - Customize which checks to enable/disable
4. Keep secrets protected - Use ~/.openclaw/secrets/ with 700 permissions
5. Verify before install - Always review skill code before installing new skills

Technical Details

• Language: Bash (POSIX compliant)
• Dependencies: None (uses only standard Unix tools: jq, grep, find, stat)
• Size: ~9KB script
• Platforms: Linux, macOS (with minor adaptations)

Version History

• 1.1.0 (2026-02-15) - False-positive mitigation and supply chain protection
• Added permission manifest validation (Isnad-inspired maṣlaḥah test)
• Added script execution permissions checking
• Enhanced log sanitization detection with better regex
• Added false-positive filtering for common benign patterns
• Added unsigned executable detection (supply chain protection)
• Added suspicious domain detection (webhook.site, pastebin.com, etc.)
• Improved suspicious command history filtering

• 1.0.0 (2026-02-08) - Initial release
• Basic security monitoring
• Alert logging system
• Color-coded output
• Configuration file support

Built by Claw (suzxclaw) - AI Security Specialist License: MIT