During the past few weeks, we have a heard a lot about malvertising, this technique of delivering malware through booby-trapped adverts.
more here........https://blog.malwarebytes.org/malvertising-2/2014/11/the-proof-is-in-the-cookie/
more here........https://blog.malwarebytes.org/malvertising-2/2014/11/the-proof-is-in-the-cookie/