Individual skill
defense-dfir-triage
First-response DFIR triage: scope an incident, collect volatile evidence, and find attacker activity on Linux/Windows. Load on "incident", "we got breached", "investigate this host", "IOCs", suspected compromise, or forensic triage. Signals: alert to investigate, suspicious host, "what happened".
skills/defense/defense-dfir-triage/SKILL.md
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- Last checked
- Nov 7, 2026
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- 27
- Repository last updated
- Oct 14, 2026
- License
- MIT
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- agent-skills Repository topic
- ai-agents Repository topic
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- engineering Derived category
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# DFIR triage & investigation
## When it applies
A host or account is suspected compromised and you need to determine what happened, scope it,
and preserve evidence — quickly, without destroying volatile data.
## Why it works
Attacker activity leaves artifacts across a known set of locations (execution, persistence,
logons, network). A disciplined order — preserve volatile first, then map to ATT&CK — gives a
timeline and scope instead of a guess.
## Method
1. **Preserve volatile first** (order of volatility): memory (if warranted), then running
processes, network connections, logged-on users — before shutdown/changes.