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Defensive detection rules in Sigma and YARA v1.0.0

Use this resource to design and validate threat detection rules

New

  • 590 downloads
  • 134 likes
  • 218 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install write-detection-rules

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent writes Sigma or YARA rules and SIEM queries, maps them to MITRE ATT&CK techniques, finds coverage gaps and proposes a detection-as-code pipeline. You get rules ready to test, with their coverage map.

Mostly picked by

Updated November 2, 2026

Card for the “Defensive detection rules in Sigma and YARA” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: working rules, detection method and scope
  • reference/: detection as code, incident response playbook, Snort rules and threat intelligence

Good fit for

  • You want to spot an attack technique in your logs
  • You are adding detection tests to your CI pipeline

Not for

    Tags

    • detection
    • sigma
    • yara
    • mitre att&ck

    About

    You say

    “Write a Sigma rule that flags privilege escalation through PowerShell in our Windows logs.”

    Card for the “Defensive detection rules in Sigma and YARA” skill

    Skill published by simota under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to design and validate threat detection rules
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1 KB
    • NOTICE-PALATEKIT.md0.4 KB
    • reference/autorun-schema.md0.8 KB
    • reference/detection-as-code.md13.7 KB
    • reference/detection-patterns.md13.6 KB
    • reference/handoffs.md3.2 KB
    • reference/ioc-threat-intel.md8.7 KB
    • reference/playbook-incident-response.md9.6 KB
    • reference/snort-network-detection.md7.2 KB
    • SKILL.md24.1 KB

    Origin and licence

    Listed unmodified

    Author
    simota
    Source
    github.com/simota/agent-skills/tree/2e02cc9efb3852a45334495df3784d59b87b0e18/vigil
    Licence
    MIT

    Notice

    « vigil » (simota, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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