reverse-skills-max: initial public release (restored, redacted, hardened)
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reverse-skill-repo/skills/digital-forensics/SKILL.md
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reverse-skill-repo/skills/digital-forensics/SKILL.md
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name: digital-forensics
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description: Use for authorized digital forensics including memory dumps, disk timelines, PCAP investigation, artifact triage, and IR evidence preservation.
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---
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# Digital Forensics & IR Artifacts
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## ACTION REQUIRED(读完后立刻执行)
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1. `NOW`: 读取 `../field-journal/precedent-pentest.md` 或组织 IR 授权说明
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2. `NOW`: 确认是**取证/溯源**而非进攻性扫描
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3. `NOW`: 建立 case;证据只读副本优先(原始介质写保护)
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4. `NEXT`: tool-index;Volatility 等常手动
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5. `ACT`: 保全哈希 → 时间线 → 关键伪影
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## 适用场景
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- 内存转储分析(Volatility 2/3)
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- 磁盘/ E01 / 落地文件时间线
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- PCAP 溯源与协议还原(可联合 `protocol-reverse/`)
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- 主机伪影:Prefetch、Shimcache、Event Log、浏览器历史
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- 应急响应 IOC 提炼(联合 `malware-analysis/` / `threat-hunting/`)
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## 工作流
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### 1. 保全
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```text
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□ 计算 SHA256;记录时区与采集命令
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□ 工作在副本上;原始只读
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□ chain of custody 备注写入 timeline
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```
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### 2. 内存
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```bash
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vol -f mem.dmp windows.info
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vol -f mem.dmp windows.pslist
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vol -f mem.dmp windows.netscan
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vol -f mem.dmp windows.cmdline
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```
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### 3. 主机伪影
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```text
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□ 事件日志:Security / PowerShell / Sysmon
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□ 持久化:Run 键、服务、计划任务、WMI
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□ 执行痕迹:Amcache、Prefetch、BAM
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```
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### 4. 网络
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```text
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□ tshark 统计会话与 DNS
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□ 导出可疑流 → protocol-reverse 或 malware C2 分析
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```
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## 工具链
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| 工具 | 用途 |
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|------|------|
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| Volatility 3 | 内存 |
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| Timeline Explorer / Plaso | 超级时间线 |
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| tshark | PCAP |
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| Eric Zimmerman 工具集 | Windows 伪影 |
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| Autopsy / FTK Imager | 磁盘 |
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## 参考
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- `references/forensics-triage.md`
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- `../malware-analysis/` `../threat-hunting/` `../protocol-reverse/`
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## 路由上下文
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**上游**: MASTER R25
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**下游**: 恶意样本深挖 → malware-analysis;规则 → threat-hunting
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## 任务完成自检
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- [ ] 是否保全哈希与副本策略?
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- [ ] 时间线是否可复核?
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- [ ] IOC 是否脱敏分级?
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- [ ] Checklist?
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# 取证分诊顺序
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1. 保全与哈希
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2. 内存急症(进程、网络、注入)
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3. 持久化与执行痕迹
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4. 横向与账号异常
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5. 外联 IOC
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6. 报告与修复建议
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输出模板字段:Time | Host | Artifact | Finding | Confidence | Evidence path
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