aegis-dfir-triage-linux SKILL.md skillC
aegis-dfir-triage-linux 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-dfir-triage-linux@git:20260826.9702747Pins git:20260826.9702747 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 14 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- as-foss/aegis-skills
- Path
skills/operations/dfir-triage/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260826.9702747, committed Aug 26, 2026
- First version recorded
- Aug 25, 2026
- Size
- 41,686 bytes
- Repository stars
- 16
- License
- Apache-2.0
First-60-120-minute DFIR triage for a suspected-compromised Linux host or Kubernetes node - volatile capture, session forensics, persistence and webshell sweeps, and the rebuild-versus-investigate decision.
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
> **Adaptation note (this module remaps the fixed skill headings):** *What To Check* = the ordered triage sequence steps. *Where To Look* = artifact paths on disk. *Patterns & Signatures* = indicator shapes (webshell greps, deleted-exe signatures, suspicious-line examples). *Taint Tracing Guidance* = lateral-movement reading (which artifact implicates which next hop). *Exploitation & Reproduction* = TABLETOP walkthrough procedures on an owned, isolated lab host - explicitly never production. *Remediation* = eradication/rebuild actions. *Severity Assessment* = incident-impact classification aid, not CVSS scoring. ## Scope & Objectives Apply this module to: suspicious ubuntu/fedora servers, bare-metal or cloud VMs, Kubernetes nodes, and hosts running internet-facing python/rust services behind cloudflare tunnels (cloudflared). Assume no EDR, no preinstalled forensics tooling, SSH access as an admin, and a small team with one responder on the keyboard. Objectives, in order: 1. Preserve volatile evidence to an EXTERNAL collector before anything mutates the host. 2. Prove or disprove compromise within 60-120 minutes with concrete indicators. …
Read the whole file at its exact version.
How to install
mdr add as-foss/aegis-skills/aegis-dfir-triage-linux@sha256:aade8e90e3c59b45The 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_qj5apcqcgqwh2uiy)
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 | 41,686 B | C | view · diff |
| git:20260825.85624bc | 2026-08-25 | 85624bc | 41,680 B | C | view · diff |
| git:20260825.244c198 | 2026-08-25 | 244c198 | 40,626 B | C | view |
Audit of the latest version
- fail: No curl or wget piped into a shell (matched: curl ...|sh)
- fail: No link to a raw IP address (matched: http://127.0.0.1:9)
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (41686 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
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_qj5apcqcgqwh2uiy GET https://markdownregistry.com/api/v1/resolve?ref=as-foss/aegis-skills/aegis-dfir-triage-linux GET https://markdownregistry.com/api/v1/blob/aade8e90e3c59b45476f7aec9c2d8699aee94b52758e51ad3e3710778b2a00fc
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.