Now liveThe Skillselion MCP - thousands of ranked skills, loaded into your agent mid-task. No install.Get it →
wgpsec avatar

Internal Recon

  • 31 installs
  • 1.6k repo stars
  • Updated July 19, 2026
  • wgpsec/aboutsecurity

Helps with ai & agent building tasks during AI-assisted development.

About

internal-recon is a Claude Code skill for ai & agent building. It helps solo builders move faster with AI-assisted coding.

  • internal-recon
  • AI & Agent Building
  • AI-coding skill

Internal Recon by the numbers

  • 31 all-time installs (skills.sh)
  • +2 installs in the week ending Jul 27, 2026 (Skillselion tracking)
  • Ranked #9,164 of 16,546 AI & Agent Building skills by installs in the Skillselion catalog
  • Data as of Aug 5, 2026 (Skillselion catalog sync)
npx skills add https://github.com/wgpsec/aboutsecurity --skill internal-recon

Add your badge

Show developers this skill is listed on Skillselion. Paste this into your README.

Listed on Skillselion
Installs31
repo stars1.6k
Last updatedJuly 19, 2026
Repositorywgpsec/aboutsecurity

What it does

Helps with ai & agent building tasks during AI-assisted development.

Files

SKILL.mdMarkdownGitHub ↗

内网信息收集方法论

内网侦察和外网侦察的区别:内网通常没有 CDN/WAF 保护,但你的操作空间受限于当前立足点的网络位置。核心目标是快速绘制内网地图——有哪些主机、什么服务、哪些是高价值目标。

⛔ 深入参考(必读)

  • 存活探测命令、端口→服务→价值映射表、域控/数据库定位 → references/network-mapping.md
  • fscan 详细用法(弱口令爆破、POC 检测、代理扫描)→ 加载 fscan-scan 技能
  • 工具投递方法(怎么把后渗透 需要的工具 传到目标上、为什么要在目标上执行而非本地)→ 加载 tool-delivery 技能

Phase 1: 当前位置分析

# Linux
ip addr && ip route && cat /etc/resolv.conf && arp -a && cat /etc/hosts
# Windows
ipconfig /all && route print && arp -a && net view /domain

关键判断:多网卡=跳板 | DNS→内网IP=域环境 | ARP表大=活跃网段

Phase 2: 存活主机发现(fscan 优先)

# fscan 一把梭(存活+端口+服务+弱口令+漏洞,速度远超 nmap)
fscan -h 10.0.0.0/24 -nopoc          # 快速存活+端口
fscan -h 10.0.0.0/24                  # 全量(含 POC 检测+弱口令)

# nmap 补充(fscan 不可用时降级)
nmap -sn 10.0.0.0/24                  # ICMP ping
nmap -PR -sn 10.0.0.0/24             # ARP(同网段最可靠)

Phase 3: 端口扫描(聚焦关键端口)

# fscan 指定端口(推荐,速度快且自动识别服务)
fscan -h TARGETS -p 22,80,135,139,443,445,1433,3306,3389,5432,5985,6379,8080,9200

# nmap 深度识别(需要服务版本/NSE 脚本时用)
nmap -sT -sV -p 22,80,445,3389 TARGETS

高价值端口:88(域控) | 445(SMB) | 3389(RDP) | 1433(MSSQL) | 6379(Redis)

→ 完整端口→服务→价值映射表 → references/network-mapping.md

Phase 4: 关键基础设施定位

  • 域控:88+389+445 = 确认域控 | DNS IP 通常就是域控
  • 数据库:用收集到的凭据尝试连接
  • 管理系统httpx -tech-detect / curl -sI 发现 Jenkins/GitLab/Zabbix

Phase 5: 输出内网地图

网络拓扑 + 高价值目标清单(域控→数据库→管理系统→跳板机)+ 优先攻击路径

注意事项

  • 优先被动发现(ARP/路由表),再主动扫描
  • 分批扫描,避免扫 /16 导致网络问题

被动发现技术

  • NBNS / LLMNR 广播监听:NetBIOS 名称服务可被动获取主机名
  • tcpdump 抓包、监听、嗅探网络流量
  • 端口 3268 — Active Directory Global Catalog(全局编录)

多网卡 Pivot

  • 发现双网卡主机(两个网段),可作为跨网段的 pivot 跳板
  • 通过此机器设置代理/转发,访问新网段
  • 新攻击面:扩大范围,深入内网

Related skills

This week in AI coding

Five minutes, every Monday - the tools, releases and tactics for developers.

unsubscribe anytime.