Troj/Iframe-ET is a Trojan found in a malicious web page.
Troj/Iframe-ET is usually seen in web pages that perform clickjacking, forcing users to "like" pages in Facebook without their knowledge.
The first stage of the attack typically involves a variety of temptingly titled links shown on a Facebook profile, eg: "The Prom Dress That Got This Girl Suspended From School.". If
clicked, the user will be sent to an attack site.
If at this point the user is logged into Facebook, the malicious web page will attempt to recommend the page to the user's Facebook friends, using a link similar to the one before.