Search.memetab.com hijacker could be accountable for the modified browser's settings, and it must have invaded your operating system along with free software. You probably installed some type of free software recently, and it came along with a browser hijacker. If you wish to block these kinds of annoying threats, be cautious about what kind of software you install. Search.memetab.com isn't a high-level infection but the way it behaves will get on your nerves. Your browser's home web page and new tabs will be set to load the browser hijacker's advertised web page instead of your normal page. Your search engine will also be changed, and it might insert sponsored links among the legitimate results. Redirect viruses want to reroute users to advertisement web pages so as to boost traffic for them, which permits their owners to make profit from advertisements. Some of those reroutes may redirect to insecure pages, so you might end up in a malicious program ridden-site and accidentally get a malicious software. Malicious software would be more trouble so avoid it as much as possible. You might think hijackers are beneficial extensions but you can find the same features in proper extensions, ones that will not try to redirect you. Some redirect viruses are also known to gather certain type of data, like websites visited, so that content users are more likely to press on could be displayed. In addition, unrelated third-parties may be given access to that information. So you are highly encouraged to eliminate Search.memetab.com as soon as possible.
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