There are specific variations for Google Chrome, Microsoft Edge and Mozilla Firefox as well as a catch-all for any other browser client. Wang also found that the format of the pages displayed will vary depending upon the browser version being used. These HTML documents within other HTML documents are "added by setting iframe as the page's showLogin," Wang reports, "making it appear when the URL is entered." The iframe content is the authentication page URL, hence the loop which effectively freezes the browser in a seemingly inescapable lock. Rather than applying basic JavaScript coding to loop the user back to the same pop-up window, this scam does it by adding iframes. While creating a loop to a web page isn't unusual in and of itself, Wang says this campaign is different thanks to the methodology used.
It urges the user to call a support number to remove the infection and prevent "further damage to our network." While such language would ordinarily be highly suspicious to most people, the scammers have employed another tactic to scare the user into believing the threat is real: freezing the web browser. The "support" window, meanwhile, claims that the computer has been infected by "a virus and a spyware" that has stolen your Facebook login, credit card details, email credentials and photos stored on the device. Clicking to cancel the authentication pop-up just loops the user back to the same page.
#Microsoft windows license scam call password#
One asks for a username and password from the user while the other suggests they telephone Microsoft for urgent technical support as the computer has now been blocked. Nothing could actually be further from the truth, of course, and the user will be faced with two pop-up windows as they arrive. Thought to be using the traditional social engineering method of malvertising to distribute malicious links, the fraudsters direct potential victims to a web page that appears to be typical of a Microsoft technical support site.
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