An user submitted to us a suspicious link that was present in his website as an hidden iframe.
Malicious hidden iframes are mainly inserted in html pages of legit websites by bad hackers that want to spread their malware with the objective to infect all the users that will visit the compromised website and in most of the cases, is possible that the hackers have infected the entire files of the website or they have installed a malicious url redirect to other websites with installed other exploits for common used web browsers.