Researchers have detected a malvertising campaign running on a pair of sites owned by Huffington Post that is using ads distributed through an AOL ad network. The attack is sending victims through a series of redirects that eventually brings them to a landing page that is running an exploit kit. The campaign emerged first on huffingtonpost.ca on Dec. 31 and researchers from security firm Cyphort soon found it on the main Huffington Post site in the United States as well. AOL has taken steps to shut down the campaign.
Source: https://threatpost.com/malvertising-campaign-uses-aol-ad-network-leads-to-exploit-kit/110230/