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/detecting-and-responding

蓝队与紫队工程:检测规则编写、SIEM/EDR 调优、事件响应、数字取证、威胁狩猎、ATT&CK 映射、紫队演练闭环。Use when writing Sigma/YARA detection rules, tuning SIEM noise, responding to security incidents, conducting forensic analysis, hunting threats, or running purple team exercises.

From plugin
code-abyss
23830 skills
Install
$ npx -y skills add telagod/code-abyss --skill detecting-and-responding --agent claude-code

How it fires

How this skill gets triggered: by you, by Claude, or both.

  • Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
  • You can call itInvoke it directly when you want it.
  • Slash command/detecting-and-responding

Context preview

The summary Claude sees to decide when to auto-load this skill.

蓝队与紫队工程:检测规则编写、SIEM/EDR 调优、事件响应、数字取证、威胁狩猎、ATT&CK 映射、紫队演练闭环。Use when writing Sigma/YARA detection rules, tuning SIEM noise, responding to security incidents, conducting forensic analysis, hunting threats, or running purple team exercises.

SKILL.md

detecting-and-responding.SKILL.md
name: detecting-and-responding
description: 蓝队与紫队工程:检测规则编写、SIEM/EDR 调优、事件响应、数字取证、威胁狩猎、ATT&CK 映射、紫队演练闭环。Use when writing Sigma/YARA detection rules, tuning SIEM noise, responding to security incidents, conducting forensic analysis, hunting threats, or running purple team exercises.
user-invocable: false

蓝队检测与响应 · 镇魔盾

> **判断先于执行**:决定「是否做 / 选什么 / 如何取舍」(栈、方案、架构、权衡)前,先读领域判断内核 `skills/_kernel/security/SKILL.md`——它管 judgment,本秘典管 execution;冲突时以内核判断为准。

> 检测是工程,不是运气。每条规则必须能回答四问:**what / why / FP rate / response**。 > 站在防御侧,把告警当代码维护、把事件当事故管理、把狩猎当假设验证。 > 信级:项目日志/EDR 原始事件 > Sigma/YARA 规则库 > ATT&CK 官方矩阵 > 训练记忆(标 `[unverified]`)。

路由

| 意图 | 秘典 | 触发词 | |------|------|--------| | SIEM/EDR 规则与调优 | [siem-and-edr](references/siem-and-edr.md) | Sigma, YARA, Splunk, Elastic, Sentinel, EDR, LOLBins, detection-as-code | | 事件响应与取证 | [incident-response](references/incident-response.md) | IR, NIST 800-61, triage, chain of custody, Volatility, memory, runbook, postmortem | | 威胁狩猎与紫队 | [threat-hunting](references/threat-hunting.md) | hunt, hypothesis, IOC, IOA, TTP, ATT&CK, Atomic Red Team, Caldera, 蜜罐 |

执行链

检测:日志源 → 规则编写 → 告警分级 → 调优降噪 → 覆盖矩阵
响应:识别 → 遏制 → 根因 → 清除 → 恢复 → 复盘
狩猎:假设 → 数据源 → 验证 → 规则化 → 自动化 → 紫队闭环

每环必须可回答「我看的是哪条日志?我证伪的是哪条假设?我下一步动作是什么?」

何时使用

| 场景 | 用 | 不用 | |------|----|----| | 写 Sigma/YARA 规则、调 SIEM | ✅ siem-and-edr | — | | 处理已发生入侵、取证 | ✅ incident-response | — | | 假设驱动狩猎 / 紫队演练 | ✅ threat-hunting | — | | ATT&CK 检测覆盖打分 | ✅ threat-hunting | — | | 设计应用层防御代码 | ❌ | [defending-applications](../defending-applications/SKILL.md) | | 渗透测试、写 PoC | ❌ | [securing-systems](../securing-systems/SKILL.md) (pentest/red-team) | | 威胁建模、IAM 架构 | ❌ | [architecting-security](../architecting-security/SKILL.md) | | 代码静态扫描胶水 | ❌ | [analyzing-security](../analyzing-security/SKILL.md) | | 云配置基线、K8s 加固 | ❌ | [securing-cloud-and-supply-chain](../securing-cloud-and-supply-chain/SKILL.md) |

联动

  • **securing-systems/red-team**:攻方 TTP 是本 skill 检测规则的设计输入。
  • **securing-systems/threat-intel**:IOC/CTI 投喂本 skill 的规则与狩猎假设。
  • **architecting-security/threat-modeling**:威胁模型的 detective control 在本 skill 落地。
  • **analyzing-security**:本 skill 产出的 detection-as-code 接入 CI 门禁。
  • **automating-devops/observability**:日志/指标/链路三支柱的安全维。

铁律

1. **无噪不出闸** — 任何规则上线前必须有基线 + FP rate 测量;FP > 5% 直接打回调优,不准带病上线。 2. **不证伪即假设** — 狩猎必须有可证伪的假设;找不到不是结论,是数据缺失或假设错。 3. **取证不破坏现场** — 先采易失证据(内存/网络/进程),再动磁盘;写阻断器 + 哈希链 + 时间戳三件套必须齐。 4. **检测即代码** — 规则进 git、有 unit test、过 CI、有 owner;改规则等同改生产代码。 5. **闭环到 ATT&CK** — 每条规则、每次事件、每次狩猎必须映射到 ATT&CK 技术 ID;无 ID 不归档。

输出约束

  • 规则示例必须给完整 frontmatter + detection + condition + 反例说明(为什么不这样写)。
  • 命令示例标注操作系统与权限要求(root / SYSTEM / 普通用户)。
  • 日志样例脱敏:IP 用 `192.0.2.0/24`、域名用 `example.com`、用户名用 `<analyst>`。
  • 每条检测规则必须附 FP 来源清单与响应动作(containment / enrichment / kill)。
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