Full story:://www.ibtimes.com/yahoo-malware-hundreds-thousands-users-may-be-infected-due-malicious-ads-report-1526736 A new report details the possibility that hundreds of thousands of visitors to Yahoo may have been exposed to malware advertisements. The activity was first discovered on Jan. 3 and involved several hosted ads, served by ads.yahoo.com. Fox-IT, an Internet security firm, discussed the malware attack on its blog. “On Jan. 3 we detected and investigated the infection of clients after they visited yahoo.com,” said Fox-IT. Not all of the advertisements delivered by ads.yahoo.com are malicious but several malware ads were detected, redirecting users to a “Magnitude” exploit kit that installed several malware files. Per Fox-IT, “This exploit kit exploits vulnerabilities in Java and installs a host of different malware including ZeuS, Andromeda, Dorkbot/Ngrbot, Advertisement clicking malware, Tinba/Zusy and Necurs.” As described by Fox-IT, the user sees an iframe ad. The malicious redirects the visitor to one of several domains and the malware is then served from one IP For those who go on Yahoo.