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Create a targeted intrusion timeline for a Windows incident using whatever artifacts are available (event logs, EDR, SIEM exports, triage notes).
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
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Professional malware analysis workflow for PE executables and suspicious files. Triggers on file uploads with requests like "analyze this malware", "analyze this sample", "what does this executable do", "check this file for malware", or any request to examine suspicious files. Performs static analysis, threat intelligence triage, behavioral inference, and produces analyst-grade reports with reasoned conclusions.
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Hypothesis-driven hunt plan for suspicious PowerShell, plus query snippets for common telemetry.
| id | analysis.windows-intrusion-timeline |
| name | Windows intrusion timeline (targeted) |
| description | Create a targeted intrusion timeline for a Windows incident using whatever artifacts are available (event logs, EDR, SIEM exports, triage notes). |
| version | 0.1.0 |
| author | awesome-dfir-skills contributors |
| license | Apache-2.0 |
| tags | ["windows","timeline","intrusion","authentication","process-execution"] |
| category | analysis |
| platforms | ["windows"] |
| inputs | [{"name":"case_context","description":"Environment + scope: host roles, time window, timezone, suspected technique, what telemetry/artifacts exist (event logs, EDR, SIEM, triage notes).","required":true},{"name":"artifacts","description":"Relevant investigation artifacts (bounded): event entries (text/JSON/CSV), EDR process tree, alerts, command lines, file hashes/paths, network indicators, or short summaries with examples.","required":true}] |
| outputs | [{"name":"timeline","description":"Chronological list of notable events with interpretations and confidence."},{"name":"followup_queries","description":"Concrete event filters/queries to run next (by EventID and fields)."}] |
To get the best timeline, provide a "case bundle":
Role: You are a Windows DFIR analyst.
Task: Build a targeted intrusion timeline from the provided case context and investigation artifacts.
Rules:
- Don’t invent events. If there are gaps, call them out and explain what would fill them.
- Normalize timestamps. If timezone is unclear, explicitly label times as “untrusted”.
- Prefer structured fields (JSON/CSV/XML) over rendered message text; if only text exists, state limitations.
- Track confidence per finding (High/Med/Low) with a one-line reason.
- Separate facts (observed events) from interpretation (hypotheses).
- If you identify a suspicious execution, pivot around it (parent/child relationships) and trace activity backwards and forwards.
Case context: {{case_context}}
Artifacts: {{artifacts}}
Deliverables:
- Timeline assumptions
- Timezone used, clock skew considerations, host naming assumptions (if redacted)
- Notable event timeline as a table with columns:
time(ISO 8601)hostlog(e.g., Security/System/PowerShell/Sysmon)event_idactor(user/service account; or “unknown”)artifact(process/service/task/account/network)summary(what happened)interpretation(why it matters)confidence(High/Med/Low)- Key threads (map events into phases: initial access → execution → persistence → privilege escalation → lateral movement → collection/exfil)
- Gaps & limitations
- Missing logs (e.g., no Sysmon, no PowerShell 4104, no 4688)
- Missing fields (e.g., no command line, no parent process)
- Audit policy implications (what might be disabled)
- Follow-up queries / filters to run next, grouped by log source
- Provide EventID + key fields to filter on
- Include 1–2 examples per log source
- Recommended next artifacts to collect to validate each key hypothesis
- e.g., Sysmon config, Amcache, Prefetch, SRUM, Shimcache, scheduled tasks export, services list, browser history, EDR telemetry
Use this procedure whenever the incident involves a suspicious process/script/service/task.
When you propose follow-ups, express them as:
TargetUserName, IpAddress, LogonType, AuthenticationPackageName, WorkstationName