Linux DFIR

Ethical Hacking & Penetration Testing

Linux DFIR

Hash, image, timeline, hunt logs/network, contain malware, and report — lab evidence only.

Eight practical Linux DFIR labs on synthetic evidence: chain of custody and hashing, read-only disk/filesystem analysis, memory volatility concepts, auth.log SSH hunts, MACB-style timelines, beacon detection in conn/PCAP summaries, malware IR containment without destroying evidence, and stakeholder-ready reporting with IOC and custody appendices. Authorized training images only — no unauthorized forensics on live orgs.

Level
Advanced
Duration
4–6 weeks
Modules
4 modules · 8 lessons
Learning method
Lessons + labs
Preview first lesson

What you will learn

  • Hash originals and maintain chain-of-custody logs on lab images
  • Mount and analyze working copies read-only with noexec discipline
  • Explain why memory is captured before disk when policy allows
  • Hunt brute-then-success SSH patterns in synthetic auth logs
  • Build investigation windows from auth + filesystem + network events
  • Identify beacon-like destinations in conn/PCAP summaries
  • Contain malware findings with isolate → preserve → sandbox → rebuild
  • Write DFIR reports with executive summary through custody appendix

Course curriculum

Expand each module for lessons, progress, and labs assigned to that module — not a flat topic dump.

Module 1

Evidence handling and disk forensics

Custody, hashing, and safe read-only filesystem analysis on working copies.

0/2 lessons

Lessons

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Module 2

Memory concepts and auth log hunts

Volatile capture rationale and SSH/sudo evidence in auth logs.

0/2 lessons

Lessons

  • 1. Memory Forensics Concepts~20 min
  • 2. Log and Auth Forensics~20 min

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Module 3

Timelines and network forensics

Correlate host times with beacon-like network summaries.

0/2 lessons

Lessons

  • 1. Filesystem Timeline Analysis~20 min
  • 2. Network Forensics on Linux~20 min

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Module 4

Malware IR and reporting

Evidence-safe containment and stakeholder DFIR write-ups.

0/2 lessons

Lessons

  • 1. Malware and Compromise Incident Response~20 min
  • 2. DFIR Reporting and Evidence Narrative~20 min

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Inside this course

Labs · Quizzes · Certificate

Labs below are curated for this syllabus (shared engine, course-specific assignments). They unlock with enrol; quizzes match course topics; finish ≈90%+ to claim a CYNARKS Academy certificate.

Course labs

8 assigned labs · free with this course enrol

Track quiz

99 questions matched to this course topics

Knowledge checks for this track only — not a separate global quiz menu.

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CYNARKS certificate

Educational completion certificate · verify by ID

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