email-security

securityzhaoxuya520

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

Install

npx skills add https://github.com/zhaoxuya520/reverse-skill --skill email-security

SKILL.md

---name: email-securitydescription: 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）

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？

Related skills

azure-compliancemicrosoft606KRun Azure compliance and security audits with azqr plus Key Vault expiration checks. Covers best-practice assessment, resource review, policy/compliance validation, and security posture checks. WHEN: compliance scan, security audit, BEFORE running azqr (compliance cli tool), Azure best practices, Key Vault expiration check, expired certificates, expiring secrets, orphaned resources, compliance assessment.firebase-security-rules-auditorfirebase124KAudits Firebase (Firestore, Cloud Storage) security rules for vulnerabilities, privilege escalation, role bypasses, create vs update inconsistencies, resource exhaustion, type safety, size limits, and hasOnly ownership checks. Use when auditing/reviewing rules, running red-team rule assessments, or scoring against auditor checklists. Don't use for Firebase CLI (login, deploy), Auth, Crashlytics, Remote Config, or database queries.browser-fingerprint-auditliarjsdev69KAudit a browser fingerprint for internal contradictions with the liarjs CLI - canvas, WebGL, WebGL2, WebGPU, audio, 220 fonts, WebRTC and timezone probes, scored against the TLS/HTTP/ASN view of the same request. Use when asked to run a browser fingerprint test, see what a fingerprint looks like, check canvas or WebGL fingerprint stability, compare a spoofed profile against a real browser, or find out whether a browser profile is self-consistent.cloudflare-onecloudflare66KDesign, configure, troubleshoot, or review Cloudflare One Zero Trust and SASE deployments. Use cloudflare-one-migrations for migration planning from other vendors.