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Security
Skill

/email-security

Use for authorized email security review including phishing analysis, header authentication (SPF/DKIM/DMARC), BEC patterns, and mailbox token abuse research.

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reverse-skill
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$ npx -y skills add zhaoxuya520/reverse-skill --skill email-security --agent claude-code

How it fires

How this skill gets triggered: by you, by Claude, or both.

  • Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
  • You can call itInvoke it directly when you want it.
  • Slash command/email-security

Context preview

The summary Claude sees to decide when to auto-load this skill.

Use for authorized email security review including phishing analysis, header authentication (SPF/DKIM/DMARC), BEC patterns, and mailbox token abuse research.

SKILL.md

email-security.SKILL.md
name: email-security
description: Use for authorized email security review including phishing analysis, header authentication (SPF/DKIM/DMARC), BEC patterns, and mailbox token abuse research.

Email Security & Phishing Analysis

ACTION REQUIRED(读完后立刻执行)

1. `NOW`: 确认授权(分析样本邮件 / 租户配置评审) 2. `NOW`: 不向真实用户二次投递恶意样本 3. `ACT`: 头认证 → 内容/URL → 附件沙箱 → 租户控制面建议

适用场景

  • 钓鱼邮件拆解与 IOC
  • SPF/DKIM/DMARC 配置评估
  • BEC 商务邮件欺诈模式
  • OAuth 应用钓鱼 / 邮箱令牌滥用(联合 llm/cloud 身份)
  • 安全意识演练设计(授权)

工作流

□ 完整原始头:Received 链、From/Return-Path 一致性
□ SPF/DKIM/DMARC 对齐结果
□ URL 沙箱与附件静态(联合 malware-analysis)
□ 仿冒品牌与回复地址差异
□ 租户:反钓鱼策略、外部标记、MFA、OAuth app 同意

工具链

| 工具 | 用途 | |------|------| | 邮件客户端「查看源」 | 头 | | dig/nslookup | SPF/DMARC 记录 | | urlscan / 沙箱 | 链接与附件 | | 租户管理中心 | 策略 |

参考

  • `references/email-auth-checklist.md`
  • `../malware-analysis/` `../attack-chain/`(钓鱼阶段) `../windows-ad/`(令牌)

路由上下文

**上游**: MASTER R36 **MUST NOT**: 未授权对第三方域群发测试钓鱼

任务完成自检

  • [ ] 头认证结论是否完整?
  • [ ] IOC 是否可检测化(联合 threat-hunting)?
  • [ ] Checklist?
Ships withreverse-skill

Reverse Engineering / Authorized Penetration Testing / Security Research Skill Router Pack AI-powered routing + On-demand toolchain bootstrapping + Self-evolving knowledge base Supports Claude Code, Kiro, Cursor, Cline, and other AI coding clients 逆向/渗透/安全技能路由包 - AI 自动路由 + 按需自举工具链 + 自动进化经验库 | 支持 Claude Code / Kiro / Cursor / Cline 等代码 AI 客户端

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Language
MIT
License
11d ago
Last commit
4mo ago
Created
3h ago
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Repo: zhaoxuya520/reverse-skill

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