Name: email-security
Author: zhaoxuya520

Imported from zhaoxuya520/reverse-skill (skills/email-security/SKILL.md) via skills.sh. Install upstream with npx skills add zhaoxuya520/reverse-skill --skill email-security. Copyright stays with the author.

Email Security & Phishing Analysis

ACTION REQUIRED（读完后立刻执行）

NOW: 确认授权（分析样本邮件 / 租户配置评审）
NOW: 不向真实用户二次投递恶意样本
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？

Install email-security and it becomes one more candidate the router can pick - when it fits.

A listing is a routing target with a manifest: what it does, which domains it covers, what it costs and who publishes it. Once installed it sits beside your own models and tools, is scored like any other candidate for each request, and shows up in the trace when it wins. Ratings come from workspaces that installed it, one per account.

{ "ocm": "1", "id": "zhaoxuya520-reverse-skill-email-security", "kind": "skill", "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.", "publisher": "zhaoxuya520", "version": "1.0.0", "capabilities": { "domains": [ "general" ], "tags": [ "skill-md", "skills-sh" ], "languages": [ "en" ] }, "quality_prior": 0.6, "examples": [ "Use for authorized email security review including phishing analysis, header authentication (SPF/DKIM/DMARC), BEC patterns, and mailbox token abuse research." ], "primary": false, "metadata": { "source": { "provider": "skills.sh", "repository": "https://github.com/zhaoxuya520/reverse-skill", "path": "skills/email-security/SKILL.md", "ref": "HEAD", "url": "https://www.skills.sh/zhaoxuya520/reverse-skill/email-security", "key": "zhaoxuya520/reverse-skill/skills/email-security/SKILL.md" } }, "instructions": "# Email Security & Phishing Analysis\n\n## ACTION REQUIRED（读完后立刻执行）\n\n1. `NOW`: 确认授权（分析样本邮件 / 租户配置评审）\n2. `NOW`: 不向真实用户二次投递恶意样本\n3. `ACT`: 头认证 → 内容/URL → 附件沙箱 → 租户控制面建议\n\n## 适用场景\n\n- 钓鱼邮件拆解与 IOC\n- SPF/DKIM/DMARC 配置评估\n- BEC 商务邮件欺诈模式\n- OAuth 应用钓鱼 / 邮箱令牌滥用（联合 llm/cloud 身份）\n- 安全意识演练设计（授权）\n\n## 工作流\n\n```text\n□ 完整原始头：Received 链、From/Return-Path 一致性\n□ SPF/DKIM/DMARC 对齐结果\n□ URL 沙箱与附件静态（联合 malware-analysis）\n□ 仿冒品牌与回复地址差异\n□ 租户：反钓鱼策略、外部标记、MFA、OAuth app 同意\n```\n\n## 工具链\n\n| 工具 | 用途 |\n|------|------|\n| 邮件客户端「查看源」 | 头 |\n| dig/nslookup | SPF/DMARC 记录 |\n| urlscan / 沙箱 | 链接与附件 |\n| 租户管理中心 | 策略 |\n\n## 参考\n\n- `references/email", "cost": { "context_tokens": 208 } }

email-security

About

Email Security & Phishing Analysis

ACTION REQUIRED（读完后立刻执行）

适用场景

工作流

工具链

参考

路由上下文

任务完成自检

Use it

Install email-security and it becomes one more candidate the router can pick - when it fits.

Manifest

Reviews