Check Safari for extensions, and check your macOS DNS settings, and - if you have access to it from your ISP - check that your router is configured per your ISP requirements and is up to the most current firmware. Usual way that Safari browser sites are redirected elsewhere is either a DNS hijack or a router hijack, or a Safari browser extension. Less effort than a reinstallation, and might address the problems here. If your Mac is infested, you can try to clean up the mess, or can try add-on software that claims to be able to clean up malware - that stuff can be just as much of a problem as the malware itself, and Malware Bytes and which is reputedly reasonable itself recently caused problems for Windows systems with bad updates - or you can transfer all your files to backup and wipe the system and reinstall from known-good copies of macOS and apps, and (in any case) change all of your local and your remote passwords. Short of analyzing the pieces and parts, no one can know. Or this is something else other than MacKeeper, that's claiming to be MacKeeper. Either directly, or via a bogus download of some other app. It would be appreciated if someone could please suggest how I could rectify this issue. I updated the OS to Sierra yesterday and hoped that would solve things, however it hasn't. However, the problem has retuned and this time I cannot see any suspicious app in my Applications and don't know where to start? I also followed previous Apple Discussion's advice and deleted a few links from my Library (e.g. I thankfully didn't click 'install' and managed to find the Mackeeper application in 'Applications' and deleted it. However, I recently downloaded an update link for a Adobe Flash Player and believe that MacKeeper malware was 'bundled up' in this download. I have not clicked 'OK' or proceeded to download and software. They go on to say they have detected a trojan virus on my Mac, and I should click 'OK' to begin the repair process. I've noticed that when I search for web addresses in Safari the browser will either redirect me to a random websites, often re-directing me to some of the following websites:įor example, the '' website notes my 'system is infected with 3 viruses (malware and phishing/ spyware) and immediate action is required. I have a MacBook Pro and am aware it has a 'virus' - it could be malware or a trojan?

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