johnalbertini14-glitch GuavaGuard 🛡️
Runtime security monitoring for your OpenClaw agent.
GuavaGuard watches tool calls in real-time and warns when it detects dangerous patterns — reverse shells, credential exfiltration, sandbox escapes, and more.
Quick Start
# 1. Install
clawhub install guava-guard
# 2. Enable the runtime hook
openclaw hooks install skills/guava-guard/hooks/guava-guard
openclaw hooks enable guava-guard
# 3. Restart gateway, then verify:
openclaw hooks list # Should show 🍈 guava-guard as ✓ ready
That's it. GuavaGuard is now monitoring your agent's tool calls.
What It Detects (12 runtime patterns)
| Pattern | Severity | Example |
|---|---|---|
| Reverse shell | 🔴 CRITICAL | /dev/tcp/, nc -e, socat TCP |
| Credential exfiltration | 🔴 CRITICAL | Secrets → webhook.site, ngrok, requestbin |
| Guardrail disabling | 🔴 CRITICAL | exec.approval = off (CVE-2026-25253) |
| macOS Gatekeeper bypass | 🔴 CRITICAL | xattr -d quarantine |
| ClawHavoc AMOS | 🔴 CRITICAL | socifiapp, Atomic Stealer indicators |
| Base64 → shell | 🔴 CRITICAL | base64 -d | bash |
| Download → shell | 🔴 CRITICAL | curl | bash, wget | sh |
| Cloud metadata SSRF | 🔴 CRITICAL | 169.254.169.254 |
| Known malicious IP | 🔴 CRITICAL | 91.92.242.30 |
| DNS exfiltration | 🟠 HIGH | nslookup $secret, dig @attacker |
| SSH key access | 🟠 HIGH | .ssh/id_*, .ssh/authorized_keys |
| Crypto wallet access | 🟠 HIGH | wallet seed, mnemonic, seed phrase |
Current Limitation
Warning: OpenClaw's hook API does not yet support blocking tool execution. GuavaGuard currently warns only — it cannot prevent dangerous calls. When a cancel API is added, blocking will be enabled automatically. See: Issue #18677
Audit Log
All detections are logged to ~/.openclaw/guava-guard/audit.jsonl (JSON lines format).
Want Full Static Scanning? (Recommended Default)
GuavaGuard handles runtime monitoring. For comprehensive static scanning of skill packages before installation, use guard-scanner first:
# 1) Pre-install safety gate
npx guard-scanner ./skills --self-exclude --verbose
# 2) Then enable runtime monitoring
openclaw hooks enable guava-guard
- 186+ detection patterns / 20 threat categories
- HTML dashboard, SARIF, JSON output
- Zero dependencies
- MIT licensed
GitHub: https://github.com/koatora20/guard-scanner
ClawHub: clawhub install guard-scanner
Born From a Real Incident
A real agent compromise overwrote core behavior files through a malicious skill install path. GuavaGuard exists to detect dangerous runtime tool-call patterns early and leave an auditable trail.
License
MIT. Zero dependencies. 🍈