Hi,
I would like to suggest you that you should update the system security software that is installed in the system. After that run the system scan on your PC, it would fix the problem. To know more about browser hijacker and how it spreads in the system along with its precautions, you can visit:
http://www.keepbrowsersafe.com/gotoinstall-ru-redirect-best-ways-get-rid-pc-browser