Today while watching Funny videos on YouTube i clicked on Ad that is for creating Cartoons characters but when i clicked on the Ad the , Ad website is asking me to install an Active X control on my pc and my antivirus program is also showing warning message.
When i was on malicious website, it is showing me messages like my PC is at high risk and scan with malicious website scanner.
This might be because of the fact the AdSense is most widely used Ad Serving program and YouTube is word largest Online video serving website.