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threat-hunting

Blue-team threat hunting: detection engineering with Sigma/YARA, SIEM query design, and validation of incident detections against known technique patterns.

Threat Hunting & Detection Engineering

When to Use

  • Proactively hunting for adversary activity in telemetry.
  • Writing or validating detection rules mapped to ATT&CK techniques.

适用场景

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

工作流

1. 建假说

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

□ 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

# 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

□ 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/

路由上下文

上游: MASTER R27 下游: 确认入侵 → forensics;恶意样本 → malware-analysis MUST NOT: 在无授权生产环境跑攻击模拟

任务完成自检

  • [ ] 是否有明确假说与结论?
  • [ ] 规则是否注明误报与数据源?
  • [ ] Checklist?

Limitations

  • Hypothesis quality bounds results; weak telemetry yields weak hunts.
  • Rule tuning is continuous; expect false positives initially.
Adapted from [zhaoxuya520/reverse-skill](https://gi

Subscribers only

The full skill, its 2 bundled files and every download is included with every paid Complete AI plan.

Details

Sourcezhaoxuya520/reverse-skill
LicenseMIT
Risk labelsafe ("critical" means the skill may run commands or touch files — read before use)
FilesSKILL.md, references/hunting-loop.md
Added2026-08-25

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