defense-kit - Defensive security toolkit — scan, harden, and mon

项目说明

defense-kit

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Defensi toolkit for Linux. 42 scanners, 4 hardeners, local dashboard, threat intelligence, forensics timeline. Scan, harden, monitor, and comply — from your laptop to your servers.

Install

Skip external tools:

Or clone:

Quick Start

Commands

| Command | What It Does |
|---------|-------------|
| scan | Read-only audit across 42 scanners |
| harden | Fix issues with approval + rollback |
| monitor | Quick scan + diff against baseline |
| dashboard | Local web dashboard (SQLite + htmx) |
| comply | Map findings to CIS/SOC2/OWASP |
| schedule | Auto-scan timer or cron |
| baseline | Track changes over time |
| tools check | Show scanners + external tools |
| report html | Generate HTML report |
| outputs | Manage scan history |

What It Scans

42 scanners across 10 groups:

| Group | Scanners | What It Detects |
|-------|----------|----------------|
| en | shell_rc, en, ld_preload, pam | RC poisoning, PATH hijacking, library injection |
| persistence | cron, systemd, scheduled, xdg_autostart | Malicious cron/services, backdoor timers, XDG autostart abuse |
| process | processes, memory, clipboard | Reverse shells, miners, keyloggers |
| filesystem | integrity, anomalies, timestomp, capabilities, swap, encryption | SUID abuse, anti-forensics, unencrypted disks |
| network | ports, connections, dns, firewall, vpn, threat_intel | C2 connections, DNS exfiltration, known-bad IPs |
| auth | ssh, users, browser | Weak SSH, UID 0 backdoors, sa |
| system | rootkit, boot, logs, package_manager, sysctl, services, mac, updates, auditd | Rootkits, log tampering, missing patches |
| code | credentials, supply_chain, containers, git_hooks, docker_runtime | Leaked secrets, CVEs, malicious hooks |
| forensics | ebpf, webshell | eBPF backdoors, webshell indicators |

What It Hardens

| Hardener | Fixes |
|----------|-------|
| SSH | PermitRootLogin, PasswordAuth, EmptyPasswords, MaxAuthTries |
| OS | 9 sysctl params (ip_forward, ASLR, SYN cookies, etc.) |
| Firewall | UFW setup with SSH safety |
| Git | Disable hooks, enable fsckobjects |

Every fix: requires approval, creates backup, generates rollback script.

External Tools

Installed by default. Enhance detection when a, graceful fallback when not.

rkhunter, chkrootkit, lynis, ClamA, trufflehog, tri, hadolint, dockle, ssh-audit, semgrep, bandit, nmap, aide, debsums

Dashboard

Local-only web UI with:

Docker

Structure

How It Differs From pentest-kit

| | pentest-kit | defense-kit |
|---|---|---|
| Purpose | Find vulns in others | Protect yourself |
| Mode | Offensive | Defensive |
| Output | Pentest report | Compliance report + auto-fix |
| Runs | Per engagement | Continuously / scheduled |

Credits

Part of the nunenuh security toolkit family alongside pentest-kit.

项目信息

开发语言：Go

Star 数：3

技术要点

该项目属于防护思路方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕Defensive security toolkit — scan, harden, and monitor your OS, code, repos, and infrastructure. Claude Code skill.展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。