aegis-malicious-code SKILL.md skillB
aegis-malicious-code from as-foss/aegis-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add as-foss/aegis-skills/aegis-malicious-code@git:20260826.9702747Pins git:20260826.9702747 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- as-foss/aegis-skills
- Path
skills/code/malicious-code/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260826.9702747, committed Aug 26, 2026
- First version recorded
- Aug 25, 2026
- Size
- 47,988 bytes
- Repository stars
- 16
- License
- Apache-2.0
Hunts deliberately malicious constructs — obfuscated payloads, exfil beacons, backdoor routes, install-time implants, and provenance-less vendored blobs — across source trees, dependencies, build scripts, and repo-local automation.
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
# MALCODE — Deliberate Malice Detection > **Adaptation note:** This module reuses the shared playbook skeleton with two deliberate deviations. **Exploitation & Reproduction** is a *tabletop lab exercise*: you construct a throwaway repo containing a fully disclosed, inert canary implant, then practice locating it using this module's own sweep block — dynamic detonation (firecracker/qemu sandboxes, any.run-style services) belongs to a separate dynamic-analysis category and is out of scope here; this module is static-only. **Severity Assessment** is a *trust-impact classification* (how much attacker trust a finding implies), not CVSS scoring; no base scores, vectors, or environmental metrics are computed in this module. ## Scope & Objectives This module detects code that someone placed with intent to harm — not accidental defects. The difference drives everything below: accidental vulnerabilities look like bugs and hide in plain sight; deliberate malware looks like nothing and works to hide. Scan for concealment as aggressively as for capability. Threat origins to model before scanning (know where malice comes from so you know which surfaces it touches): …
Read the whole file at its exact version.
How to install
mdr add as-foss/aegis-skills/aegis-malicious-code@sha256:fe924f1c34d0c47cThe line at the top of this page pins the label git:20260826.9702747, 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_j3wa5egcf6dc5k7k)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 25, 2026 and Aug 26, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260826.9702747 latest | 2026-08-26 | 9702747 | 47,988 B | B | view · diff |
| git:20260825.85624bc | 2026-08-25 | 85624bc | 47,989 B | B | view · diff |
| git:20260825.244c198 | 2026-08-25 | 244c198 | 46,927 B | B | view |
Audit of the latest version
- fail: No curl or wget piped into a shell (matched: curl | sh)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (47988 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
as-foss/aegis-skills · 16 stars · license Apache-2.0 · pushed 2026-08-26 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_j3wa5egcf6dc5k7k GET https://markdownregistry.com/api/v1/resolve?ref=as-foss/aegis-skills/aegis-malicious-code GET https://markdownregistry.com/api/v1/blob/fe924f1c34d0c47c4e3e28bcb2992f2260e85d3d73c6e5b6146461a69a155540
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.