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https://github.com/shadow1ng/fscan.git
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feat: flatten NDJSON output for AI agent consumption and add SKILL.md
This commit is contained in:
@@ -0,0 +1,304 @@
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---
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name: fscan-agent
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description: 使用 fscan 进行网络扫描和安全评估。当用户要求扫描网段、探测主机存活、发现开放端口、识别服务、检测漏洞或弱口令时使用。支持 NDJSON 结构化输出,适合 AI agent 管道消费。
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argument-hint: <目标IP/网段> [附加参数]
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allowed-tools: Bash, Read, Agent
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---
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# Fscan AI Agent Skill
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## 工具概述
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Fscan 是一款内网综合扫描工具,功能包括:
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- 主机存活探测(ICMP / TCP)
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- 端口扫描与服务识别
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- 漏洞检测(MS17-010、Redis 未授权等)
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- 弱口令爆破(SSH、SMB、MySQL、MSSQL、FTP、RDP 等)
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- Web 指纹识别与 POC 扫描
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- NetBIOS / SMB 信息收集
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- 本地信息收集(杀软检测、系统信息等)
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二进制路径:当前项目编译产物 `fscan_cli`,或系统 PATH 中的 `fscan`。
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## 调用格式
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```bash
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# AI agent 标准用法:NDJSON 输出,无人类日志干扰
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fscan -h <目标> -silent [其他参数]
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# 解析输出
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fscan -h 192.168.1.0/24 -silent | jq 'select(.type=="VULN")'
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```
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## 核心参数
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### 目标指定
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| 参数 | 说明 | 示例 |
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|------|------|------|
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| `-h` | 目标主机(IP / CIDR / 范围) | `-h 192.168.1.0/24` `-h 10.0.0.1-10.0.0.100` |
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| `-hf` | 从文件读取目标 | `-hf targets.txt` |
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| `-p` | 指定端口(逗号/范围) | `-p 22,80,443,445,3306` `-p 1-1000` |
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| `-ep` | 排除端口 | `-ep 25,110` |
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| `-eh` | 排除主机 | `-eh 192.168.1.1` |
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| `-u` | 指定 URL(Web 扫描) | `-u https://example.com` |
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| `-uf` | URL 文件 | `-uf urls.txt` |
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### 扫描控制
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| 参数 | 说明 | 默认值 |
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|------|------|--------|
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| `-m` | 扫描模式 | `all` |
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| `-t` | 端口扫描线程数 | `600` |
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| `-mt` | 模块线程数 | `20` |
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| `-time` | 连接超时(秒) | `3` |
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| `-gt` | 全局超时(秒) | `180` |
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| `-np` | 跳过存活检测 | `false` |
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| `-ntp` | 禁用 TCP 补充探测 | `false` |
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| `-ao` | 仅存活检测 | `false` |
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| `-nobr` | 禁用暴力破解 | `false` |
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| `-full` | 全量 POC 扫描 | `false` |
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| `-max-retries` | 最大重试次数 | `1` |
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### 认证
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| 参数 | 说明 |
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|------|------|
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| `-user` | 用户名 |
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| `-pwd` | 密码 |
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| `-usera` | 追加用户名 |
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| `-pwda` | 追加密码 |
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| `-userf` | 用户名字典文件 |
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| `-pwdf` | 密码字典文件 |
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| `-domain` | 域名(SMB/WMI) |
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| `-sshkey` | SSH 私钥文件 |
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| `-hash` / `-hashf` | NTLM Hash / Hash 文件 |
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### 代理
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| 参数 | 说明 |
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|------|------|
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| `-socks5` | SOCKS5 代理 (`127.0.0.1:1080`) |
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| `-proxy` | HTTP 代理 (`http://127.0.0.1:8080`) |
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| `-iface` | 指定本地网卡 IP(VPN 场景) |
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### 输出
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| 参数 | 说明 |
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|------|------|
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| `-silent` | 静默模式:stdout 仅输出 NDJSON |
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| `-o` | 输出文件路径(默认 `result.txt`) |
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| `-f` | 输出格式:`txt` / `json` / `csv` |
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| `-no` | 禁用文件保存 |
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| `-debug` | 调试模式:日志写入 `fscan_debug.log` |
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| `-log` | 日志级别(`debug` / `info` / `base` / `error`) |
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### 扫描模式 `-m` 的取值
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| 值 | 说明 |
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|------|------|
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| `all` | 全部扫描(默认) |
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| `icmp` | 仅 ICMP 存活检测 |
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| 插件名 | 仅运行指定插件(如 `ssh`、`smb`、`ms17010`、`webtitle`) |
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## 服务插件列表
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| 插件 | 默认端口 | 功能 |
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|------|----------|------|
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| `ftp` | 21 | FTP 弱口令 |
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| `ssh` | 22 | SSH 弱口令 |
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| `telnet` | 23 | Telnet 弱口令 |
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| `smtp` | 25 | SMTP 弱口令 |
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| `findnet` | 135 | RPC 网络信息发现(NetInfo) |
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| `netbios` | 139 | NetBIOS 信息收集 |
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| `smb` | 445 | SMB 弱口令 |
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| `ms17010` | 445 | MS17-010 永恒之蓝检测 |
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| `ldap` | 389 | LDAP 弱口令 |
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| `mssql` | 1433 | MSSQL 弱口令 |
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| `oracle` | 1521 | Oracle 弱口令 |
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| `mysql` | 3306 | MySQL 弱口令 |
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| `rdp` | 3389 | RDP 弱口令 + 系统信息 |
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| `postgresql` | 5432 | PostgreSQL 弱口令 |
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| `vnc` | 5900 | VNC 弱口令 |
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| `redis` | 6379 | Redis 未授权 + 弱口令 |
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| `elasticsearch` | 9200 | ES 未授权 |
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| `mongodb` | 27017 | MongoDB 未授权 + 弱口令 |
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| `memcached` | 11211 | Memcached 未授权 |
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| `kafka` | 9092 | Kafka 未授权 |
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| `activemq` | 61616 | ActiveMQ 弱口令 |
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| `rabbitmq` | 5672 | RabbitMQ 弱口令 |
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| `cassandra` | 9042 | Cassandra 弱口令 |
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| `neo4j` | 7687 | Neo4j 弱口令 |
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| `rsync` | 873 | Rsync 未授权 |
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| `webtitle` | 80/443 | Web 标题 + 指纹识别 |
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| `webpoc` | 80/443 | Web 漏洞 POC |
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## 本地插件(`-local`)
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```bash
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fscan -local avdetect # 杀软检测
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fscan -local systeminfo # 系统信息收集
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fscan -local envinfo # 环境变量信息
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fscan -local dcinfo # 域控信息
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fscan -local fileinfo # 敏感文件搜索
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```
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## NDJSON 输出 Schema(`-silent` 模式)
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每行一个 JSON 对象,所有字段定义:
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| 字段 | 类型 | 出现条件 | 说明 |
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|------|------|----------|------|
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| `type` | string | 必有 | `HOST` / `PORT` / `SERVICE` / `VULN` |
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| `target` | string | 必有 | 原始目标 `host` 或 `host:port` |
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| `status` | string | 必有 | 状态描述 |
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| `host` | string | 必有 | IP 地址 |
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| `port` | int | PORT/SERVICE/VULN | 端口号 |
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| `service` | string | SERVICE/VULN | 服务名(ssh, smb, http 等) |
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| `protocol` | string | HOST/SERVICE | 协议(ICMP, TCP, http, https) |
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| `banner` | string | SERVICE | 服务 Banner |
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| `title` | string | SERVICE (web) | 网页标题 |
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| `url` | string | SERVICE (web) | 完整 URL |
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| `vulnerability` | string | VULN | 漏洞名称 |
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| `username` | string | VULN (弱口令) | 用户名 |
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| `password` | string | VULN (弱口令) | 密码 |
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| `plugin` | string | SERVICE/VULN | 产生结果的插件名 |
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| `version` | string | SERVICE | 服务版本号 |
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| `os` | string | SERVICE | 操作系统信息 |
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### 输出示例
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```jsonl
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{"type":"HOST","target":"192.168.1.5","status":"alive","host":"192.168.1.5","protocol":"ICMP"}
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{"type":"PORT","target":"192.168.1.5","status":"open","host":"192.168.1.5","port":22}
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{"type":"PORT","target":"192.168.1.5","status":"open","host":"192.168.1.5","port":445}
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{"type":"SERVICE","target":"192.168.1.5:22","status":"identified","host":"192.168.1.5","port":22,"service":"ssh","banner":"SSH-2.0-OpenSSH_8.9p1","version":"8.9p1","plugin":"portscan"}
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{"type":"SERVICE","target":"192.168.1.5:80","status":"web","host":"192.168.1.5","port":80,"service":"http","protocol":"http","url":"http://192.168.1.5:80","title":"Welcome","plugin":"webtitle"}
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{"type":"VULN","target":"192.168.1.5:445","status":"MS17-010 (Windows Server 2012 R2 Standard 9600)","host":"192.168.1.5","port":445,"vulnerability":"MS17-010","service":"smb","plugin":"ms17010"}
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{"type":"VULN","target":"192.168.1.5:22","status":"weak_credential: root:123456","host":"192.168.1.5","port":22,"service":"ssh","username":"root","password":"123456","plugin":"ssh"}
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{"type":"VULN","target":"192.168.1.5:6379","status":"Redis unauthorized","host":"192.168.1.5","port":6379,"vulnerability":"Redis unauthorized access","service":"redis","plugin":"redis"}
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```
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### 结果产出顺序
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1. `HOST` — 存活探测阶段
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2. `PORT` — 端口扫描阶段(与 SERVICE 可能交错)
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3. `SERVICE` — 服务识别阶段
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4. `VULN` — 漏洞/弱口令检测阶段
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同一 `host:port` 可产生多条结果(PORT + SERVICE + VULN)。
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## 常用场景参数组合
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### 全网段快速扫描
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```bash
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fscan -h 192.168.1.0/24 -silent
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```
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### 跳过存活检测直接扫端口(目标明确时)
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```bash
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fscan -h 192.168.1.0/24 -silent -np
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```
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### 指定端口精确扫描
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```bash
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fscan -h 10.0.0.0/24 -silent -p 22,80,443,445,3389,3306,6379
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```
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### 仅存活探测
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```bash
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fscan -h 172.16.0.0/16 -silent -m icmp
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```
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### 低速隐蔽扫描
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```bash
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fscan -h 192.168.1.0/24 -silent -t 30 -time 5
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```
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### 通过 SOCKS5 代理扫描内网
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```bash
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fscan -h 10.0.0.0/24 -silent -socks5 127.0.0.1:1080
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```
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### 仅做弱口令检测
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```bash
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fscan -h 192.168.1.10 -silent -m ssh -user root -pwdf /path/to/passwords.txt
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```
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### Web 目标扫描
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```bash
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fscan -u https://target.com -silent -full
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```
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### 多目标文件批量扫描
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```bash
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fscan -hf targets.txt -silent -o results.json -f json
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```
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### 带调试日志的排障扫描
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```bash
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# NDJSON 到 stdout,debug 日志到文件,互不干扰
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fscan -h 192.168.1.0/24 -silent -debug
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# 事后查看:cat fscan_debug.log
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```
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## AI Agent 结果处理
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### Python 管道消费
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```python
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import json, subprocess
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proc = subprocess.Popen(
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["fscan", "-h", "192.168.1.0/24", "-silent"],
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stdout=subprocess.PIPE, text=True
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)
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hosts, services, vulns = [], [], []
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for line in proc.stdout:
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r = json.loads(line)
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if r["type"] == "HOST":
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hosts.append(r["host"])
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elif r["type"] == "SERVICE":
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services.append(r)
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elif r["type"] == "VULN":
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vulns.append(r)
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proc.wait()
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```
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### jq 过滤
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```bash
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# 提取所有弱口令
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fscan -h 10.0.0.0/24 -silent | jq -r 'select(.username != null) | "\(.host):\(.port) \(.service) \(.username):\(.password)"'
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# 提取所有漏洞
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fscan -h 10.0.0.0/24 -silent | jq -r 'select(.type=="VULN") | "\(.host):\(.port) \(.vulnerability)"'
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# 提取 Web 服务
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fscan -h 10.0.0.0/24 -silent | jq -r 'select(.url != null) | "\(.url) \(.title)"'
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# 统计开放端口
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fscan -h 10.0.0.0/24 -silent | jq -r 'select(.type=="PORT") | .port' | sort -n | uniq -c | sort -rn
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```
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## 注意事项
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- `-silent` 抑制所有人类可读日志,stdout 仅输出 NDJSON
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- 空字段不出现在 JSON 中(`omitempty`)
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- 进程退出码 `0` 正常完成,非 `0` 表示参数错误或初始化失败
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- `-silent` 和 `-debug` 可同时使用,互不干扰
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- SOCKS5 代理下 fscan 信任协议层连接结果,不做额外深度验证
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- 扫描大网段时线程数会自动调整,资源耗尽时自适应降级
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- 默认超时 3 秒,防火墙 drop 的端口会静默超时,不计入失败率
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@@ -3,7 +3,9 @@ package output
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import (
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"bufio"
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"encoding/json"
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"fmt"
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"os"
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"strings"
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"sync"
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)
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@@ -18,11 +20,35 @@ func NewStdoutNDJSONWriter() *StdoutNDJSONWriter {
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}
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}
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// ndjsonRecord NDJSON 输出的扁平化结构
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type ndjsonRecord struct {
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Type ResultType `json:"type"`
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Target string `json:"target"`
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Status string `json:"status"`
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Host string `json:"host,omitempty"`
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Port int `json:"port,omitempty"`
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Service string `json:"service,omitempty"`
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// 通用可选字段
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Protocol string `json:"protocol,omitempty"`
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Banner string `json:"banner,omitempty"`
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Title string `json:"title,omitempty"`
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URL string `json:"url,omitempty"`
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// 漏洞/弱口令
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Vulnerability string `json:"vulnerability,omitempty"`
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Username string `json:"username,omitempty"`
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Password string `json:"password,omitempty"`
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// 其他
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Plugin string `json:"plugin,omitempty"`
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Version string `json:"version,omitempty"`
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OS string `json:"os,omitempty"`
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}
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func (w *StdoutNDJSONWriter) WriteResult(result *ScanResult) error {
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w.mu.Lock()
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defer w.mu.Unlock()
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data, err := json.Marshal(result)
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rec := w.flatten(result)
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data, err := json.Marshal(rec)
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if err != nil {
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return err
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}
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@@ -33,8 +59,87 @@ func (w *StdoutNDJSONWriter) WriteResult(result *ScanResult) error {
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return w.writer.Flush()
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}
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func (w *StdoutNDJSONWriter) flatten(r *ScanResult) *ndjsonRecord {
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rec := &ndjsonRecord{
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Type: r.Type,
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Target: r.Target,
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Status: r.Status,
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}
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// 从 target 拆分 host:port
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if host, port, ok := splitHostPort(r.Target); ok {
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rec.Host = host
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rec.Port = port
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} else {
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rec.Host = r.Target
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}
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d := r.Details
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if d == nil {
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return rec
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}
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// 从 details 提升一级字段(覆盖拆分结果)
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if v, ok := d["port"]; ok {
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if p, ok := toInt(v); ok {
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rec.Port = p
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}
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||||
}
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|
||||
rec.Service = strVal(d, "service")
|
||||
rec.Protocol = strVal(d, "protocol")
|
||||
rec.Banner = strVal(d, "banner")
|
||||
rec.Title = strVal(d, "title")
|
||||
rec.URL = strVal(d, "url")
|
||||
rec.Vulnerability = strVal(d, "vulnerability")
|
||||
rec.Username = strVal(d, "username")
|
||||
rec.Password = strVal(d, "password")
|
||||
rec.Plugin = strVal(d, "plugin")
|
||||
rec.Version = strVal(d, "version")
|
||||
rec.OS = strVal(d, "os")
|
||||
|
||||
return rec
|
||||
}
|
||||
|
||||
func (w *StdoutNDJSONWriter) Close() error {
|
||||
w.mu.Lock()
|
||||
defer w.mu.Unlock()
|
||||
return w.writer.Flush()
|
||||
}
|
||||
|
||||
func strVal(d map[string]interface{}, key string) string {
|
||||
v, ok := d[key]
|
||||
if !ok {
|
||||
return ""
|
||||
}
|
||||
s, ok := v.(string)
|
||||
if !ok {
|
||||
return fmt.Sprintf("%v", v)
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func toInt(v interface{}) (int, bool) {
|
||||
switch n := v.(type) {
|
||||
case int:
|
||||
return n, true
|
||||
case int64:
|
||||
return int(n), true
|
||||
case float64:
|
||||
return int(n), true
|
||||
}
|
||||
return 0, false
|
||||
}
|
||||
|
||||
func splitHostPort(target string) (string, int, bool) {
|
||||
idx := strings.LastIndex(target, ":")
|
||||
if idx < 0 {
|
||||
return "", 0, false
|
||||
}
|
||||
host := target[:idx]
|
||||
var port int
|
||||
if _, err := fmt.Sscanf(target[idx+1:], "%d", &port); err != nil {
|
||||
return "", 0, false
|
||||
}
|
||||
return host, port, true
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user