# Digital Forensics

> Guides authorized digital forensics and incident response workflows including memory dump analysis, disk timeline creation, PCAP investigation, and artifact triage with evidence preservation.

- Skill: `zhaoxuya520/digital-forensics` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add zhaoxuya520/digital-forensics`
- Raw SKILL.md: https://api.skillmd.com/api/skills/zhaoxuya520/digital-forensics/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security, Incident Response, Penetration Testing, Vulnerability Scanning
- Tags: Artifact Triage, Disk Forensics, Ir Evidence, Memory Dump, Pcap, Timeline Analysis, Tshark, Volatility
- Author: zhaoxuya520 (https://skillmd.com/u/zhaoxuya520)
- Updated: 2026-08-22
- Page: https://skillmd.com/skills/zhaoxuya520/digital-forensics

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# Digital Forensics & IR Artifacts

## ACTION REQUIRED（读完后立刻执行）

1. `NOW`: 读取 `../field-journal/precedent-pentest.md` 或组织 IR 授权说明
2. `NOW`: 确认是**取证/溯源**而非进攻性扫描
3. `NOW`: 建立 case；证据只读副本优先（原始介质写保护）
4. `NEXT`: tool-index；Volatility 等常手动
5. `ACT`: 保全哈希 → 时间线 → 关键伪影

## 适用场景

- 内存转储分析（Volatility 2/3）
- 磁盘/ E01 / 落地文件时间线
- PCAP 溯源与协议还原（可联合 `protocol-reverse/`）
- 主机伪影：Prefetch、Shimcache、Event Log、浏览器历史
- 应急响应 IOC 提炼（联合 `malware-analysis/` / `threat-hunting/`）

## 工作流

### 1. 保全

```text
□ 计算 SHA256；记录时区与采集命令
□ 工作在副本上；原始只读
□ chain of custody 备注写入 timeline
```

### 2. 内存

```bash
vol -f mem.dmp windows.info
vol -f mem.dmp windows.pslist
vol -f mem.dmp windows.netscan
vol -f mem.dmp windows.cmdline
```

### 3. 主机伪影

```text
□ 事件日志：Security / PowerShell / Sysmon
□ 持久化：Run 键、服务、计划任务、WMI
□ 执行痕迹：Amcache、Prefetch、BAM
```

### 4. 网络

```text
□ tshark 统计会话与 DNS
□ 导出可疑流 → protocol-reverse 或 malware C2 分析
```

## 工具链

| 工具 | 用途 |
|------|------|
| Volatility 3 | 内存 |
| Timeline Explorer / Plaso | 超级时间线 |
| tshark | PCAP |
| Eric Zimmerman 工具集 | Windows 伪影 |
| Autopsy / FTK Imager | 磁盘 |

## 参考

- `references/forensics-triage.md`
- `../malware-analysis/` `../threat-hunting/` `../protocol-reverse/`

## 路由上下文

**上游**: MASTER R25  
**下游**: 恶意样本深挖 → malware-analysis；规则 → threat-hunting

## 任务完成自检

- [ ] 是否保全哈希与副本策略？
- [ ] 时间线是否可复核？
- [ ] IOC 是否脱敏分级？
- [ ] Checklist？