Banners warn of 'trojan presence' on my MacBook Pro after visiting a website

You do not have a Trojan or any Malware on your computer. You simply allowed a website to send you Notifications and they are using that to scare you into believing you have a problem so you will buy/subscribe to whatever they are selling.

All you need to do is open Safari and go to Safari > Settings > Websites > Notifications, and remove every website that you have allowed to send you Notifications. Problem Solved!

Wait -- Exactly WHO is telling you this? Detecting viruses and trojans is difficult from INSIDE your computer, and IMPOSSIBLE from outside.

By allowing notifications from less-than-perfectly trustworthy sites, you have allowed them to pass through messages from criminals telling you your Mac has been compromised. They are attempting to PANIC you into doing something stupid.

There is a slight grammatical error in their message. They say HAS been compromised. The correctly-communicated message is you are ABOUT TO BE compromised, once you cave in and take hasty action that is completely unwarranted.

Do this instead:

Stop unwanted Notifications

sdiocou wrote:

• Hi

Since I tried the website: kora-live.im/ to watch football, I have been "bombarded" with banners at the right-top corner of my screen (as shown below) warning me:

"your system has been infected"

• "your I-cloud has been infected"

[Edited by Moderator]

Original Title: trojan presence

Recognize and avoid phishing messages, phony support calls

Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support

Block pop-up ads and windows in Safari

Block pop-up ads and windows in Safari - Apple Support

This is a screenshot of what the others have been suggesting as a fix: