Everyone should check this:
It would seem that normal advertisements are more and more used as channels to spread malware. This is a really nasty phenomenon. Popular and trustworthy sites are silently turned into malware spreading platforms.
But luckily there is an easy way to protect yourself from these stealth exploit malware ads. Just install this small and handy program, Malwarebytes Anti-Exploit: https://www.malwarebytes.org/antiexploit/ . It's a specialized shield that will block all exploit attempts. At least hopefully. But for me at least it gives a certain sense of peace when "surfing the net". :)
And also, everyone should uninstall Flash, Java and Silverlight. These 3 "technologies" can be considered constantly vulnerable and are often exploited by the bad guys.