sys-guard-linux-remediator

What This Skill Does

sys-guard-linux-remediator is a comprehensive, hardened Linux incident response tool designed for OpenClaw AI agents. It provides a structured methodology for identifying, analyzing, and remediating security threats on host-level environments. The skill is engineered for precision, ensuring that all investigative actions are forensically-aware, non-destructive, and minimize impact on system stability. It covers a vast range of security tasks, including network state inspection, process analysis, rootkit detection, and firewall management across various distributions (Debian, RHEL, Fedora, Arch). By abstracting complexity, the skill helps agents navigate the nuances between iptables, nftables, and firewalld, while also providing consistent log analysis via journalctl.

Installation

To integrate this skill into your OpenClaw environment, execute the following command in your terminal: clawhub install openclaw/skills/skills/kiaraho/sys-guard-linux-remediator Ensure your agent has root or sudo privileges, as the skill requires elevated access to perform kernel-level inspections and network modifications.

Use Cases

• Incident Investigation: Quickly identify the origin of suspicious network traffic or unauthorized outbound connections using ss and tcpdump.
• Breach Containment: Remotely adjust firewall rules (iptables/nftables) to isolate compromised services without dropping the entire host connectivity.
• Integrity Validation: Use audit tools like Lynis and rkhunter to detect unauthorized system changes or hidden rootkits post-incident.
• Forensic Data Collection: Safely aggregate system logs and process trees to preserve evidence before attempting remediation actions.

Example Prompts

1. "Analyze the current network state and identify any unauthorized established connections on the server."
2. "I suspect a rootkit on this host. Run a check and provide a summary of any anomalies found in the kernel modules or file system."
3. "Isolate the process running on port 8080 by updating the firewall rules to block its outbound traffic."

Tips & Limitations

• Environment Awareness: This skill is designed for bare-metal or VM environments. Do not use it inside containerized systems like Kubernetes or Docker without caution, as it will affect the host system's firewall configuration.
• Precision Over Speed: While tools like strace are powerful, be aware that they can alter process timing and crash fragile services. Always prioritize non-intrusive commands first.
• False Positives: Automated scanners like rkhunter and Lynis require human interpretation. Do not blindly act on their findings; always validate findings through manual inspection of the listed file paths or processes.