building-detection-rules-with-sigma SKILL.md skillA
building-detection-rules-with-sigma from adriannoes/awesome-agentic-ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add adriannoes/awesome-agentic-ai/building-detection-rules-with-sigma@v1.0Pins v1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- adriannoes/awesome-agentic-ai
- Path
cursor-claude-codex/skills/anthropic-cybersecurity-skills/skills/building-detection-rules-with-sigma/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0, committed Jun 25, 2026
- First version recorded
- Jun 11, 2026
- Size
- 10,694 bytes
- Repository stars
- 69
- License
- MIT
'Builds vendor-agnostic detection rules using the Sigma rule format for.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Building Detection Rules with Sigma ## When to Use Use this skill when: - SOC engineers need to create detection rules portable across multiple SIEM platforms - Threat intelligence reports describe TTPs requiring new detection coverage - Existing vendor-specific rules need standardization into a shareable format - The team adopts Sigma as a detection-as-code standard in CI/CD pipelines **Do not use** for real-time streaming detection (Sigma is for batch/scheduled searches) or when the target SIEM has native detection features that Sigma cannot express (e.g., Splunk RBA risk scoring). ## Prerequisites - Python 3.8+ with `pySigma` and appropriate backend (`pySigma-backend-splunk`, `pySigma-backend-elasticsearch`, `pySigma-backend-microsoft365defender`) - Sigma rule repository cloned: `git clone https://github.com/SigmaHQ/sigma.git` - MITRE ATT&CK framework knowledge for technique mapping - Understanding of target SIEM log source field mappings ## Workflow ### Step 1: Define Detection Logic from Threat Intelligence Start with a threat report or ATT&CK technique. Example: detecting Mimikatz credential dumping (T1003.001 — LSASS Memory): ```yaml …
Read the whole file at its exact version.
How to install
mdr add adriannoes/awesome-agentic-ai/building-detection-rules-with-sigma@sha256:37f59e2eb077b8dfThe line at the top of this page pins the label v1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_jp2urs43qzval52i)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 11, 2026 and Jun 25, 2026, about one every 14 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0 latest | 2026-06-25 | f69bd81 | 10,694 B | A | view · diff |
| v1.0 | 2026-06-11 | ff4cc7c | 10,622 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10694 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
adriannoes/awesome-agentic-ai · 69 stars · license MIT · pushed 2026-10-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jp2urs43qzval52i GET https://markdownregistry.com/api/v1/resolve?ref=adriannoes/awesome-agentic-ai/building-detection-rules-with-sigma GET https://markdownregistry.com/api/v1/blob/37f59e2eb077b8dfdd8c476942164b5294b232829b0ca9ad20c82516730cb219
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.