Mmcp.market

ot-ics skill

by zhaoxuya520·zhaoxuya520/reverse-skill·39k stars·MIT

Use for authorized OT/ICS security assessment covering Purdue model zoning, PLC/SCADA exposure, industrial protocol discovery, and safe passive-first evaluation.

A100/100content scan

Is the ot-ics skill safe?

Clean: nothing in its files matched our rules. We read 2 files in the folder on 2026-09-28.

No findings.

Install the ot-ics skill

A skill is a folder. Copy it into your agent's skills folder and the agent loads it when the task matches its description. 

git clone --depth 1 https://github.com/zhaoxuya520/reverse-skill.git /tmp/reverse-skill
mkdir -p ~/.claude/skills
cp -r /tmp/reverse-skill/skills/ot-ics ~/.claude/skills/ot-ics
available in every project

In the Claude apps, zip the folder and upload it from the Skills settings. The folder on GitHub

The instructions your agent would load

SKILL.md as published, without the frontmatter. Read it on GitHub

OT / ICS Security

ACTION REQUIRED（读完后立刻执行）

  1. NOW: 读取 ../field-journal/precedent-pentest.md — 工控环境误操作可致物理危害
  2. 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
  3. NOW: case-init；默认 passive-first；readyforact 前禁止对 PLC 写操作
  4. NEXT: tool-index；多数工控工具需手动与隔离实验网
  5. 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

参考

  • references/ot-safe-assessment.md
  • ../firmware-pentest/ ../protocol-reverse/ ../network via 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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