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Threat Hunting

ASecurity

Use for blue-team threat hunting, detection engineering with Sigma/YARA, SIEM query design, and incident detection validation.

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  • Added September 23, 2026
ai-agentsshellgitsecurity

Works with

  • cli

Security analysis

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Scanned September 23, 2026

npx -y skills add coco-research/coco --skill threat-hunting --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md
---
name: threat-hunting
description: Use for blue-team threat hunting, detection engineering with Sigma/YARA, SIEM query design, and incident detection validation.
user-invocable: true
---

# Threat Hunting & Detection Engineering

## 适用场景

- 威胁狩猎(hypothesis-driven)
- Sigma / YARA 检测工程
- 告警调优、误报分析
- 与 `malware-analysis/`:样本侧 IOC → 本 skill 落地检测
- 与 `digital-forensics/`:案件伪影 → 横向狩猎

## 工作流

### 1. 建假说

```text
例:攻击者用 living-off-the-land 做横向
→ 数据源:Sysmon 1/3/10、Windows Security 4624/4648
→ 成功标准:发现异常父进程或罕见账户日志源
```

### 2. 查询与堆叠

```text
□ 基线:正常管理员行为时段与主机
□ 异常:新服务、编码 PowerShell、异常出站
□ 关联:同账号多主机短时登录
```

### 3. 规则化

```yaml
# Sigma 骨架见 malware-analysis;本 skill 强调:
# - 误报面
# - 数据源字段映射
# - 响应 playbook 链接
```

### 4. 验证

```text
□ 原子测试(Atomic Red Team)仅在授权实验室
□ 回放历史日志验证召回
```

## 工具链

| 工具 | 用途 |
|------|------|
| Sigma CLI / sigmac | 规则转换 |
| YARA | 文件/内存 |
| SIEM(ELK/Splunk 等) | 查询 |
| osquery | 端点狩猎 |
| Atomic Red Team | 检测验证(实验室) |

## 参考

- `references/hunting-loop.md`
- `../malware-analysis/references/yara-sigma-rules.md`
- `../digital-forensics/`

Files in this skill

  • SKILL.md1.5 KB
  • references/hunting-loop.md181 B

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