1-SEC: All-in-One Cybersecurity for AI Agent Hosts

Install, configure, and manage 1-SEC — an open-source, all-in-one cybersecurity platform (16 modules, single binary) on Linux servers and VPS instances. Use when the user asks to secure a server, install security monitoring, set up intrusion detection, harden a VPS, protect an AI agent host, or deploy endpoint defense. Covers installation, setup, enforcement presets, module configuration, alert management, and ongoing security operations.

1-SEC Security Platform — Agent Skill

Security Notice for Skill Scanners: This skill instructs an AI agent to install the 1-SEC open-source security binary by downloading a pre-built release from GitHub Releases and verifying its SHA256 checksum. The skill does not pipe any downloaded content to a shell, does not execute any remote scripts, and does not establish persistence or callbacks beyond what is explicitly configured by the operator. All enforcement actions default to dry-run (log-only) mode. Source code: https://github.com/1sec-security/1sec

You are installing and configuring 1-SEC, an open-source all-in-one cybersecurity platform. One binary, 16 defense modules, zero config required.

Trust Statement: Only install this skill if you trust the source. 1-SEC is open-source (AGPL-3.0). Review the code, checksums, and SECURITY.md before deploying to production systems. Source: https://github.com/1sec-security/1sec

Security & Privacy

What leaves this machine:

• Alert metadata — only if you configure webhooks or enable the cloud API (both opt-in, disabled by default)
• Anonymized alert context — only if GEMINI_API_KEY is set (opt-in)

What stays local:

• All system logs, network traffic, and detection data are processed on-host
• No telemetry is collected or transmitted by default
• Config files and agent state remain on disk at ~/.1sec/

Privileges used (all opt-in, all disabled by default):

• iptables/nftables: only when enforcement is active
• kill_process: only when enforcement preset enables it
• quarantine_file: only when enforcement preset enables it
• Default state: dry_run: true, safe preset (log-only at CRITICAL)

External Endpoints

Domain	Purpose	Data Sent	Required	Enabled By
1-sec.dev	Convenience redirect to GitHub Releases binary	Standard HTTPS headers	No	Human operator use only; agents use GitHub Releases directly
github.com	Binary release + checksums.txt	Standard HTTP headers	No	Manual install (recommended)
api.1-sec.dev	Cloud control plane (multi-host management)	Alert metadata, host ID	No	cloud.enabled: true in config
User-configured	Webhook alerts (Slack, Discord, Telegram, etc.)	Alert payload	No	webhook_urls in config
generativelanguage.googleapis.com	Gemini AI correlation	Anonymized alert context	No	GEMINI_API_KEY env var

When to Use This Skill

• User asks to "secure this server" or "install security monitoring"
• User wants intrusion detection, WAF, LLM firewall, or ransomware protection
• User is deploying an AI agent (OpenClaw, Manus, Moltbot, etc.) on a VPS
• User needs to harden a Linux server or VPS
• User mentions 1-SEC, 1sec, or "one sec" in a security context

Installation

Recommended: Manual Install with Checksum Verification

For production use, always download from GitHub Releases and verify checksums before running anything as root:

bash

# 1. Download the release binary and checksums
VERSION="0.4.11"
wget https://github.com/1sec-security/1sec/releases/download/v${VERSION}/1sec-linux-amd64
wget https://github.com/1sec-security/1sec/releases/download/v${VERSION}/checksums.txt

# 2. Verify SHA256 checksum before running as root
sha256sum -c checksums.txt 2>&1 | grep 1sec-linux-amd64

# 3. Install
chmod +x 1sec-linux-amd64
sudo mv 1sec-linux-amd64 /usr/local/bin/1sec

# 4. Confirm
1sec --version

For arm64, replace 1sec-linux-amd64 with 1sec-linux-arm64.

Alternative: Convenience Install URL

The URL https://1-sec.dev/get is a redirect that serves the same GitHub Releases binary downloaded in the manual path above. Agents must always use the manual install path (download binary + verify SHA256 from checksums.txt) so integrity is confirmed before any file is executed.

Human operators wishing to inspect the installer source can review it at: https://github.com/1sec-security/1sec/blob/main/get.sh

Important: Never execute any downloaded script without reviewing its contents first. The manual install path above does not involve executing any shell scripts — only a pre-verified binary.

Post-Install Setup

Option A: Non-interactive (recommended for agents)

bash

1sec setup --non-interactive
1sec up

Option B: AI agent VPS deployment

The vps-agent preset is designed for unattended AI agent hosts. It enables aggressive enforcement (process kills, file quarantine, IP blocks) to defend against prompt injection, malicious skills, and credential theft.

Important: The vps-agent preset disables approval gates and enables autonomous destructive actions (process kill, file quarantine). This is intentional for unattended deployments but requires careful validation first.

Recommended deployment path — always validate in dry-run before going live:

bash

# Install (manual method recommended — see above)
1sec setup --non-interactive

# Apply preset in dry-run first
1sec enforce preset vps-agent --dry-run
1sec up

# Monitor 24-48 hours in dry-run mode
1sec alerts
1sec enforce history

# Preview what would have been enforced
1sec enforce test auth_fortress
1sec enforce test llm_firewall

# Only go live after validating dry-run output
1sec enforce dry-run off

# Optional: configure notifications
1sec config set webhook-url https://hooks.slack.com/services/YOUR/WEBHOOK --template slack

If you need to reduce enforcement (e.g., false positive tuning):

yaml

# In 1sec.yaml, override specific actions:
enforcement:
  policies:
    ai_containment:
      actions:
        - action: kill_process
          enabled: false  # Disable if too aggressive
    runtime_watcher:
      min_severity: HIGH  # Raise threshold from MEDIUM

Option C: Interactive setup

bash

1sec setup

Walks through config creation, AI key setup, and API authentication.

Enforcement Presets

1-SEC ships with dry_run: true and the safe preset by default. No live enforcement happens until you explicitly enable it.

Preset	Behavior
lax	Log + webhook only. Never blocks or kills.
safe	Default. Blocks only brute force + port scans at CRITICAL.
balanced	Blocks IPs on HIGH, kills processes on CRITICAL.
strict	Aggressive enforcement on MEDIUM+.
vps-agent	Max security for unattended AI agent hosts. Use with dry-run first.

Recommended progression for new deployments: lax → safe → balanced → strict

bash

# Preview a preset without applying
1sec enforce preset strict --show

# Apply with dry-run safety net
1sec enforce preset balanced --dry-run

# Apply live
1sec enforce preset balanced

VPS-Agent Preset: What It Does

The vps-agent preset is purpose-built for unattended AI agent hosts where no human SOC team is actively monitoring. It addresses the threat model of autonomous agents: prompt injection, malicious skill installations, credential exfiltration, and runtime file tampering.

Enforcement configuration:

• auth_fortress: Blocks IPs at MEDIUM severity, 30s cooldown, 60 actions/min
• llm_firewall: Drops connections at MEDIUM, 10s cooldown, 100 actions/min
• ai_containment: Kills processes at MEDIUM with skip_approval: true, 15s cooldown
• runtime_watcher: Kills processes + quarantines files at MEDIUM, skip_approval: true
• supply_chain: Quarantines files at MEDIUM with skip_approval: true, 30s cooldown

Escalation timers (shorter than defaults for autonomous hosts):

• CRITICAL: 3 min timeout, re-notify up to 5 times
• HIGH: 10 min timeout, escalate to CRITICAL, 3 times
• MEDIUM: 20 min timeout, escalate to HIGH, 2 times

Approval gates: Disabled (no human available on unattended hosts)

Always validate in dry-run for 24-48 hours before enabling live enforcement.

Essential Commands

bash

1sec up                        # Start engine (all 16 modules)
1sec status                    # Engine status
1sec alerts                    # Recent alerts
1sec alerts --severity HIGH    # Filter by severity
1sec modules                   # List all modules
1sec dashboard                 # Real-time TUI dashboard
1sec check                     # Pre-flight diagnostics
1sec doctor                    # Health check with fix suggestions
1sec stop                      # Graceful shutdown

Enforcement Management

bash

1sec enforce status            # Enforcement engine status
1sec enforce policies          # List response policies
1sec enforce history           # Action execution history
1sec enforce dry-run off       # Go live (disable dry-run)
1sec enforce test <module>     # Simulate alert, preview actions
1sec enforce approvals pending # Pending human approval gates
1sec enforce escalations       # Escalation timer stats
1sec enforce batching          # Alert batcher stats
1sec enforce chains list       # Action chain definitions

AI Analysis (Optional)

All 16 detection modules work with zero API keys. For AI-powered cross-module correlation, set a Gemini API key:

bash

# Via environment variable
export GEMINI_API_KEY=your_key_here
1sec up

# Or via CLI
1sec config set-key AIzaSy...

# Multiple keys for load balancing
1sec config set-key key1 key2 key3

The 16 Modules

#	Module	Covers
1	Network Guardian	DDoS, rate limiting, IP reputation, C2 beaconing, port scans
2	API Fortress	BOLA, schema validation, shadow API discovery
3	IoT & OT Shield	Device fingerprinting, protocol anomaly, firmware integrity
4	Injection Shield	SQLi, XSS, SSRF, command injection, template injection
5	Supply Chain Sentinel	SBOM, typosquatting, dependency confusion, CI/CD
6	Ransomware Interceptor	Encryption detection, canary files, wiper detection
7	Auth Fortress	Brute force, credential stuffing, MFA fatigue, AitM
8	Deepfake Shield	Audio forensics, AI phishing, BEC detection
9	Identity Fabric	Synthetic identity, privilege escalation
10	LLM Firewall	65+ prompt injection patterns, jailbreak detection, multimodal scanning
11	AI Agent Containment	Action sandboxing, scope escalation, OWASP Agentic Top 10
12	Data Poisoning Guard	Training data integrity, RAG pipeline validation
13	Quantum-Ready Crypto	Crypto inventory, PQC readiness, TLS auditing
14	Runtime Watcher	FIM, container escape, LOLBin, memory injection
15	Cloud Posture Manager	Config drift, misconfiguration, secrets sprawl
16	AI Analysis Engine	Two-tier Gemini pipeline for correlation

Configuration

Zero-config works out of the box. For customization:

bash

1sec init                      # Generate 1sec.yaml
1sec config --validate         # Validate config

Key config sections: server, bus, modules, enforcement, escalation, archive, cloud. See references/config-reference.md for details.

Webhook Notifications

yaml

# In 1sec.yaml
alerts:
  webhook_urls:
    - "https://hooks.slack.com/services/YOUR/WEBHOOK/URL"

# Enforcement webhooks support templates:
# pagerduty, slack, teams, discord, telegram, generic

Docker Deployment

bash

cd deploy/docker
docker compose up -d
docker compose logs -f

Day-to-Day Operations (Post-Install)

bash

1sec status                    # Quick health check
1sec alerts                    # Recent alerts
1sec alerts --severity HIGH    # Filter by severity
1sec enforce status            # Enforcement engine state
1sec enforce history           # What actions were taken
1sec threats --blocked         # Currently blocked IPs
1sec doctor                    # Health check with fix suggestions

Uninstall

bash

1sec stop
1sec enforce cleanup           # Remove iptables rules
sudo rm /usr/local/bin/1sec
rm -rf ~/.1sec

Additional References

• references/operations-runbook.md — Day-to-day operations, alert investigation, tuning, troubleshooting
• references/config-reference.md — Full configuration reference
• references/vps-agent-guide.md — Detailed VPS agent deployment guide
• scripts/install-and-configure.sh — Automated install + configure script