3.3: Best Practices for Malware Removal

Malware Removal Best Practice

Rebuilding from scratch or restoring from backup is safest; removal may be done only to recover important files.

Step 1 - Verify Symptoms

Look for odd errors or performance issues; research the suspected malware.

Step 2 - Quarantine

Disconnect system and removable media from network to prevent spread.

Step 3 - Disable Restore

Malware can hide in restore points; turn off system protection and delete them.

Step 4 - Remediation

Update antivirus, scan and remove malware; use safe mode, bootable media, or specialized tools; may require boot sector repair; safest solution is rebuild.

Step 5 - Schedule Updates

Automate scans and enable OS updates via antivirus software or Task Scheduler.

Step 6 - Re-enable Restore

Once clean, turn on system protection and create a restore point.

Step 7 - User Education

Train users with reminders, login messages, intranet posts, or direct guidance.