It appears my Safari 11.1.2 on my MacOS Sierra 10.12.6 has been hijacked. Strange web pages appear randomly and take over the screen. How can I find out what's doing this and remove it?
MacBook Air (13-inch Mid 2013), macOS Sierra (10.12.6)
If you can, download and run Malwarebytes > Free Antivirus Replacement & Anti-Malware Tool | Malwarebytes
What is listed as the Homepage address?
Followed first set of instructions. Found and deleted all stuff mentioned including Profiles (which I never knew was there). Went back and address was still in Homepage.
Thought bad thoughts--then closed Safari and reloaded (which should be mentioned in the instructions for us dummies) Thank you so much.
Safari/Preferences/Advanced - enable the Develop menu, then go there and Empty Caches. Quit/reopen Safari and test. Then try Safari/History/Show History and delete all history items. Quit/reopen Safari and test. You can also try try Safari/Clear History…. The down side is it clears all cookies. Doing this may cause some sites to no longer recognize your computer as one that has visited the web site. Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library/Caches/com.apple.Safari/Cache.db and move it to the trash.
Go to Safari Preferences/Extensions and turn all extensions off. Test. If okay, turn the extensions on one by one until you figure out what extension is causing the problem.
Malwarebytes Premium didn't find this. But I found that my Safari Preferences Homepage has a dimmed out homepage address that seems to be the problem. I don't know how to remove a dimmed out homepage. Would appreciate your help.
Can't see the whole thing but it starts: http:www.weknow.ac/search/
Please use the manual instructions. Do not download anything.
Good grief. Why did i get credit? You solved the problem. Can you fix?
You are welcome. You are the only one who can award points and once you do, they can't be changed. I'm just glad things are okay.
Safari Hijacked?
