Issue Description
Fake DMG installers disguise malware as popular apps, updates, or utilities.
Common Causes
- Downloading software from ads or pop-ups
- Fake “Flash/Player/Codec” updates
- Pirated software
Step-by-Step Solution
Step 1: Verify App Source
- Download apps only from:
- Mac App Store
- Official developer websites
Step 2: Inspect DMG Contents
- Legitimate apps usually contain only:
- App icon → Applications folder shortcut
- Be suspicious of installers asking for passwords
Step 3: Block Unknown Installers
- System Settings → Privacy & Security
- Ensure Allow apps from App Store and identified developers
Step 4: Delete Suspicious DMGs Immediately
- Empty Trash
- Restart Mac
Explore Further
- Review Gatekeeper logs
Prevention & Best Practices
If a DMG asks for admin access unexpectedly – stop.