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How do I preserve logs before rebooting a suspect device?

A reboot wipes a lot of forensically valuable info. Before restarting anything, spend fifteen minutes collecting.

Try this first

  1. 1Take phone photos of what you see: running processes (Task Manager > Details), network connections, unusual prompts.
  2. 2Open Event Viewer (Windows key + 'Event Viewer'). Under 'Windows Logs' > Security and System: export both to .evtx on an external USB. Not on the device itself.
  3. 3For network connections: open PowerShell as admin and run 'Get-NetTCPConnection' and 'netstat -ano'. Copy the output.
  4. 4Got more time? Microsoft has a free tool 'Process Explorer' (Sysinternals) that gives more detail. Do not install if the device is already suspect, run from USB.
  5. 5Only then, when you have enough: reboot (or better, isolate, reboot is usually not the right first step).

When to bring us in

Forensic investigation is a craft. For a real breach (fraud amount, customer data exfil): we work with digital-forensics specialists. Regular IT people can destroy evidence without knowing it.

See also

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