What can be mentioned about this contamination
Searcher.ilowcost.ru is a redirect virus not believed to be a high-level infection. Reroute viruses are commonly accidentally installed by users, they may not even be aware of the contamination. You must have recently set up some type of a free application, since browser hijackers generally use application packages to spread. A reroute virus is not a malicious piece of malware and should not do any direct damage. You will, however, experience frequent redirects to advertisement pages, since that is the main reason behind their existence. Those portals will not always not dangerous so if you visited a dangerous portal, you may end up with malware on your OS. It will not present any handy features to you, so keeping it is relatively pointless. To go back to usual browsing, you must delete Searcher.ilowcost.ru.