Page 1
VDI & REMOTEDESKTOPEVIDENCE · A GUIDE FOR UK LAWYERS Citrix, VDI and Remote Desktop: Where the Evidence Actually Resides Session Hosts, Golden Images, Profile Stores and the Endpoint That Holds Almost Nothing COMPUTER FORENSICS LAB
§ ABOUT THE AUTHOR PREPARED BY COMPUTER FORENSICS LAB E-DISCOVERY TEAM VDI & SESSION-HOST COLLECTION CPR PART 35 EXPERT REPORT S FULL CHAIN-OF-CUSTODY DOCUMENTATION
§ CONTENTS In this guide 01 Executive summary 02 The problem in plain English: imaging the window 03 The architectures in plain English: RDS, Citrix, VDI 04 Persistent versus non-persistent: the question that decides everything 05 Where the user's world actually lives: profiles and redirection 06 The connection record: brokers, gateways and session logs 07 What the end point does keep 08 Source architecture: where else the evidence lives 09 Worked examples 10 Common mistakes and technical limitations 11 Questions to ask · Suggested wording 12 Checklist and red flags · When to involve a digital forensic expert 13 Frequently asked questions 14 Glossary · References · Disclaimer · How a specialist laboratory can assist
§ 01 · ORIENTATION Executive summary THE HEADLINE POINT: FOLLOWTHESESSION, NOTTHESCREEN
§ 02 · FIRST PRINCIPLES The problem in plain English: imaging the window
§ 03 · THEESTATES The architectures in plain English: RDS, Citrix, VDI
Page 2
§ 04 · THEDECIDINGQUESTION Persistent versus non-persistent: the question that decides everything
§ 05 · THEUSER ' SREALHARDDRIVE Where the user's world actually lives: profiles and redirection
§ 06 · THELOGBOOK The connection record: brokers, gateways and session logs
§ 07 · THETHINTRACE What the end point does keep
§ 08 · THEWIDERMAP Source architecture: where else the evidence lives EVIDENCE GATEWAY END POINT DESKTOP / PROFILE IDENTIT Y DELETED / HOST STORE PROVIDER RECOVERABLE BROKER / LOGS
§ 09 · IN THE WILD Worked examples EXAMPLE1 · THEEMPTYLAPTOPANDTHEFULLPROFILECONTAINER EXAMPLE2 · THE02: 00SESSIONSANDTHEBORROWEDCREDENTIALS EXAMPLE3 · THENIGHTLYREVERTANDTHEEIGHT - HOURWINDOW
Page 3
§ 10 · WHEREITGOESWRONG Common mistakes and technical limitations Common mistakes Technical limitations
§ 11 · INTERROGATORIES & DRAFTING AIDS Questions to ask · Suggested wording Ask your client Ask your opponent Ask your e Discovery / forensic provider
§ 12 · QUICK CONTROL Checklist and red flags · When to involve a digital forensic expert The VDI / remote desktop checklist Red flags When to involve a digital forensic expert
§ 13 · COMMON QUESTIONS Frequently asked questions The employee only ever used a company laptop. Why isn't imaging it enough? The desktop rebuilds itself every night. Has the evidence been destroyed? Can these environments show us exactly what the user saw on screen? How do we prove which person was behind a session, rather than which account? Work happened through published apps, not a desktop. What changes? Our opponent runs Citrix and says session data "is not retained". How do we test that?
§ 14 · REFERENCE Glossary VDI Sources and authoritative references DISCLAIMER
§ HOW A SPECIALIST LABORATORY CAN ASSIST Working with Computer Forensics Lab Speak to a forensic examiner, not a salesperson. INSTRUCTTHELAB NEWENQUIRIESEMAILE - DISCOVERY
Cite as: Joseph Naghdi, Citrix VDI And Remote Desktop Where The Evidence Actually Resides (1), Computer Forensics Lab, https://e-discovery.uk/library/citrix-vdi-and-remote-desktop-where-the-evidence-actually-resides-1/pdf.
