A small white rectangle on my desktop

I was looking for an extension to open a publisher file on my Mac and there were all kinds of ads including Mac sweeper . I didn't download any but I think i tried to download an extension from the Microsoft pages. Since then the small white rectangle on my desktop. I use the browser 'Ecosia' and Chrome mostly. I read on another thread that this might mean I have some malware. How can I check on a Macbook bought in 2019? Many thanks.

MacBook Pro 13″, macOS 10.13

Posted on Aug 12, 2020 8:54 PM

Top-ranking reply

sterling r

Community Specialist

Posted on Aug 14, 2020 10:23 AM

Greetings seekinghelp1,

Welcome to Apple Support Communities. We're glad you're here!

We understand that while looking for extensions on your MacBook Pro, you may have unintentionally installed malware due to the small, white rectangle which now appears on your desktop. We understand that it's essential to get this resolved so you can enjoy your Mac and have peace of mind.

It will be our pleasure to share a few tips to guide you:

First, we recommend reviewing this informative article About pop-up ads and windows in Safari.
Scroll down to the section entitled "If you might have installed adware or other unwanted software on your Mac".
Also, check out this link to Safely open apps on your Mac.

Feel free to reach out if you continue to encounter any issues.

All the best!

View in context

A small white rectangle on my desktop

Similar questions