S7 edge security warning

A

AC Question

Recently bought an s7 edge, went on google tonight on the zoopla website when a pop up came up alerting me that my phone had a virus that would corrupt my sim etc so I pressed ok, it then took me to a screen which had the play store logo and it said to download something but before I had a chance to read it I instinctively clicked off of it. How can I check for any viruses or malware?