ioc-patterns SKILL.md skillA
ioc-patterns from hermeticormus/libresecops-claude-code is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hermeticormus/libresecops-claude-code/ioc-patterns@git:20260930.71a2663Pins git:20260930.71a2663 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hermeticormus/libresecops-claude-code
- Path
plugins/malware-analysis/skills/ioc-patterns/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260930.71a2663, committed Sep 30, 2026
- First version recorded
- Feb 25, 2026
- Size
- 9,264 bytes
- Repository stars
- 4
- License
- MIT
Indicator of compromise taxonomy ranked by the Pyramid of Pain, extraction and defanging patterns, quality assessment, and structured formats such as STIX 2.1 for sharing. Use when extracting, prioritizing, or formatting IOCs from an investigation.
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
# IOC Patterns
> Taxonomy of indicator of compromise types, extraction techniques, quality assessment, and structured formatting for threat intelligence sharing.
## Knowledge Base
### Indicator Taxonomy
The Pyramid of Pain (David Bianco, 2013) ranks indicator types by how much effort it costs an adversary to change them:
```
/ TTPs \ <- Hardest to change (most valuable)
/ Tools \
/ Artifacts \
/ Domain Names \
/ IP Addresses \
/ Hash Values \ <- Easiest to change (least valuable)
```
**Hash Values (Trivial to change)**
- MD5 (32 hex chars) -- collision-prone, still used for lookup compatibility
- SHA-1 (40 hex chars) -- deprecated for security, still common in threat intel
- SHA-256 (64 hex chars) -- standard for reliable identification
- ssdeep (fuzzy hash) -- identifies similar files despite minor changes
- TLSH (Trend Micro Locality Sensitive Hash) -- better than ssdeep for many use cases
- Imphash (PE import hash) -- groups samples by import table, survives recompilation
**IP Addresses (Easy to change)**
- C2 server addresses
- Exfiltration endpoints
- Scanning/reconnaissance sources
- Proxy/relay infrastructure
…Read the whole file at its exact version.
How to install
mdr add hermeticormus/libresecops-claude-code/ioc-patterns@sha256:631ece335d2ae205The line at the top of this page pins the label git:20260930.71a2663, 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_2slu5toawhnea35u)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Feb 25, 2026 and Sep 30, 2026, about one every 218 days. Its first recorded version is graded C and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260930.71a2663 latest | 2026-09-30 | 71a2663 | 9,264 B | A | view · diff |
| git:20260225.4a0a620 | 2026-02-25 | 4a0a620 | 8,970 B | C | 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 (9264 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
hermeticormus/libresecops-claude-code · 4 stars · license MIT · pushed 2026-10-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2slu5toawhnea35u GET https://markdownregistry.com/api/v1/resolve?ref=hermeticormus/libresecops-claude-code/ioc-patterns GET https://markdownregistry.com/api/v1/blob/631ece335d2ae20586d0f9043b6751a8e01386335c3f463ca0da7e0ad7d9f64b
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.