Hong Kong-based advertiser has compromised more than 100 million ads to date by forming relationships with legitimate ad platforms to gain access to premium audiences. From there, it often pushes malware onto victim machines, such as tech support scams or fake anti-virus downloads. In analyzing the domains that are serving the ads, in just 2019 so far, we have seen them churn through over 50 domains, all of which are registered at Namecheap, security engineer Eliya Stein said.
Source: https://threatpost.com/malvertising-campaign-100m-ads-supply-chain/146508/