Yonfrul.com is a redirect virus that was possibly adjoined to free programs, which is how it invaded your computer. Freeware sometimes have some kind of offers added, and when users don't unmark them, they are authorized to install. Such infections are why it is important that you pay attention to what programs you install, and how you do it. Hijackers are quite low-level threats they do perform a lot of unnecessary activity. You will notice that instead of the usual home web page and new tabs, your browser will now load a different page. Your search engine will also be changed, and it could inject sponsored content into results. If you click on such a result, you will be redirected to weird pages, whose owners are trying to earn money from traffic. You need to be cautious with those reroutes since one of them may lead you to a malicious software infection. The malware infection that you could get might cause much more serious consequences, so make sure that doesn't occur. So that people see them as handy, browser hijackers pretend to have helpful features but the reality is, they're replaceable with real plug-ins which would not reroute you. Hijackers are also collecting data about the users, so that content users would be more likely to press on could be displayed. Suspicious third-parties could also be given access to that info. So you are really encouraged to delete Yonfrul.com the moment you see it.
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