Websense® Security LabsTM ThreatSeekerTM Network has detected that the site media-servers.net has been compromised and injected with malicious code. The Web site belongs to a high-profile advertiser on the Internet realm. It’s important to note that media-servers.net serves advertising content from ad.media-servers.net, and that this site is clean. The injected code is part of an ongoing mass injection campaign that compromised thousands of legitimate Web sites. Websense Security labs have been tracking this campaign for months.