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PRACTICAL WORKBOOK

Suspected infection: isolate first, then preserve evidence

Have the incident lead coordinate the next steps to prevent further spread.

Checklist compiled 2026.10.27 · Guide sources checked 2026-10-25 · 3 tasks

01 / Define the scope

02 / Check and Record Evidence

Confirm the scope first, then expand each item to check it. For 'Completed', enter an owner and evidence; for 'Not applicable', enter a reason. Progress reflects record status only, not a security score.

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No changes yet. After filling in the form, download the HTML to save it; this page does not save automatically.

Expand one item to focus on it, or view all items at once. Printing includes every item.

If an attack is suspected, disconnect affected devices from networks and external storage

Pending

Check your environment against this guide and official documentation. Record actual findings and differences that need follow-up.

Suggested evidence: configuration or change record number, test date, results and reviewer.

Preserve alerts and related evidence for the IT lead to follow up

Pending

Check your environment against this guide and official documentation. Record actual findings and differences that need follow-up.

Suggested evidence: configuration or change record number, test date, results and reviewer.

Check trusted recovery resources in a clean environment; do not run unfamiliar tools indiscriminately

Pending

Check your environment against this guide and official documentation. Record actual findings and differences that need follow-up.

Suggested evidence: configuration or change record number, test date, results and reviewer.

03 / Review and handover

ANTI-RANSOMWARE.NET

Open official reference

Read the security guidance cited by this checklist; the source website is authoritative.

Agree and continue ↗