It’s rearing its ugly head again – the fake Java Update sites are salting reputable websites with poisoned banner ads, which take you to a “Update your Java now” message. These pop up even if your Google Chrome settings are to block all popups. DO NOT click on anything, just quit your browser immediately
The URL that it redirects to is randomized, it may say something like java-updating-now(d0t)com Do not fall for it, quit your browser without clicking anything. I recommend that you turn off Java entirely in your browser. If you are one of the few people who need it (for videoconferencing or other specialized software) then you will know. See our article on disabling Java https://computer-answers.ca/2013/computer-questions/windows-questions/zero-day-java-exploit-disable-java-now/
We recommend discontinuing the use of Internet Explorer and switching to Firefox with the NoScript plugin.