Malvertising is “a major channel of delivering malware this year,” a security vendor says. Malvertisements appear to have been removed from Adtech.de, Adxpansion.com and Addirectrev.com. The Huffington Post and the LA Weekly saw malicious ads pop up on major websites over the last month. The ads automatically redirect victims to other websites or pages that silently attack their computer and install malware. The malware installed is called Kovter, which is used to fraudulently generate ad impressions.”]