ot-ics
Use for authorized OT/ICS security assessment covering Purdue model zoning, PLC/SCADA exposure, industrial protocol discovery, and safe passive-first evaluation.
Install
npx skills add https://github.com/zhaoxuya520/reverse-skill --skill ot-icsSKILL.md
OT / ICS Security
ACTION REQUIRED(读完后立刻执行)
NOW: 读取../field-journal/precedent-pentest.md— 工控环境误操作可致物理危害NOW: 书面授权必须写清:站点、网段、是否允许主动扫描/写寄存器NOW: case-init;默认 passive-first;ready_for_act前禁止对 PLC 写操作NEXT: tool-index;多数工控工具需手动与隔离实验网ACT: 资产与分区识别 → 暴露面 → 只读验证
适用场景
- 工控/SCADA/DCS 安全评估(授权)
- Purdue 模型分区与跨区通道
- Modbus/DNP3/S7/EtherNet/IP 等协议暴露
- 工程师站、HMI、历史库、跳板主机
- IT/OT 融合边界(防火墙规则、单向闸)
安全铁律(MUST)
MUST NOT 在未明确允许时:
- 对 PLC 写线圈/寄存器
- 全网高速率扫描生产 OT
- 中断安全仪表系统(SIS)相关路径
优先:只读识别、流量镜像、离线固件/配置分析
工作流
Phase 1 — 分区与资产
□ Purdue L0–L5 草图:现场设备 → 控制 → 监督 → 站点 DMZ → 企业
□ 资产清单:PLC/RTU/HMI/工程师站/历史库/Jump host
□ 协议与端口基线(仅授权网段)
Phase 2 — 被动与只读
□ SPAN/镜像 PCAP → protocol-reverse / Wireshark 工控解析器
□ 配置与工程文件离线审计(TIA/RSLogix 导出等)
□ 默认口令与明文协议(Modbus 无认证)记录为 Finding,不写盘改值
Phase 3 — 受限主动(仅授权)
□ 低速识别,维护窗口
□ 只读功能码优先
□ 每步 Evidence;异常立即停止并通报
Phase 4 — 固件/补丁面
□ 控制器固件版本 → CVE 映射(不盲刷固件)
□ 联合 firmware-pentest 做离线镜像分析
工具链
| 工具 | 用途 | 注意 |
|---|---|---|
| Wireshark 工控 dissectors | 被动解析 | 镜像流量 |
| Nmap NSE(受限) | 识别 | 速率与时间窗 |
| Claroty/Nozomi 等 | 资产发现 | 商业/现场 |
| PLC 厂商工程软件 | 配置审计 | 离线优先 |
| binwalk / Ghidra | 固件 | 离线 |
参考
references/ot-safe-assessment.md../firmware-pentest/../protocol-reverse/../networkvia pentest-tools
路由上下文
上游: MASTER R28
下游: 固件深挖 firmware-pentest;协议 protocol-reverse;IT 横向 windows-ad/attack-chain
同级: 不要用普通 Web 扫默认参数打 OT
任务完成自检
- 是否默认被动/只读并记录授权边界?
- 是否避免对控制回路写操作(除非明确允许)?
- Finding 是否含物理/过程影响说明?
- Checklist / journal?
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