Need help. Virus warning keeps popping up

[Munnymikee]

I've gotten this pop up a lot lately. When I click on the link or what not it takes me to the play store and has me download, (360 security) this happens when I close my browser (Google Chrome) and then come back to the browser or reopen the browser it says this. Does anyone have any idea on fixing this? I have lookout and the 360 security it made me download and no virus show up.