Rece

try this

http://www.bitdefender.com/solutions/adware-removal-tool.html

and if that doesn't work I would ask for help here;

https://discussions.apple.com/thread/5554258?tstart=0

Make sure you read the entire page on that second link. They seemed to have solved the problem with the removal of Genieo but they warn you not to use the uninstaller but to follow the instructions listed on that page instead. It seams you downloaded Genieo and something else recently from somewhere. It likely came bundled with something else you downloaded without your knowledge. Any ways, whether that is true or not I would follow the instructions.