DNS Unlocker adware / malware - how to fix it on a Mac
I just wanted to share my experience with this, which had caused me quite a few sleepless nights. I am not some computer expert, so it took me a lot of effort, and also I should thank bro Wiz and the people at Applecare (Giovanne) and Malwarebytes (Thomas R) for helping me to resolve this. Essentially, I woke up one morning, and surfed the "AVS", "Clubsnap" forums and Straits Times pages, and suddenly found this green clover-shaped tag on the pages, and no matter where you clicked on the page, it caused a pop up to occur, leading to some advertisement page. This Malwarebytes page gives a good summary of what it is: https://malwaretips.com/blogs/ads-by-dns-unlocker-removal/ . Basically, it changes your DNS, which is like an address on your computer, then allowing the pop up ads to appear. I did google for solutions online, but things like resetting the Firefox and Safari, or going into Network preferences to check the IP4 or DNS did not help. I also fou...