WhitePages.com has stopped ad networks from delivering ads to its site after they were found to contain fake antivirus malware. Visitors to the Drudge Report, The New York Times, the San Francisco Chronicle, and other Web sites were found. Ad networks found to be delivering ads containing malware last year. Read the full article at http://www.cnetcnet.com/whitePages-com/news/janjanjan/2013/08/06/08. iReport.com: Tell us what you want to see.
Source: https://threatpost.com/online-ad-networks-are-malware-hot-seat-031010/73661/