Windows Chrome users: Tech-support scams try new trick to freeze your browser

Tech-support scammers have developed a new trick to freeze browsers on a bogus security alert with a number to a fake support line. The ultimate goal of the browser freeze is to cause stress to lots of potential victims in the hope some will call the bogus hotline offered in the alert.

Previously, tech-support scams have used pop-under windows, pop-up loops, and other shady techniques that aim to prevent users from closing the bogus security alert page. Scammers frequently use malicious ads to nudge browser users to booby-trapped webpages that freeze the browser.

A new technique found by researchers at Malwarebytes targets the current version of Chrome, 64.0.3282.140, on Windows. This scam works by instructing the browser to rapidly download thousands of files from the web, which quickly results in Chrome becoming unresponsive and makes it impossible to close tabs or the window by clicking the X button. Malwarebytes’ Jerome Segura said that the booby-trapped pages in this case include code that abuses a web application programming interface for saving files from the web on the browser.

Read more about the new scamming technique targetting Windows Chrome users which can be effectively countered by using an ad-blocker, on ZDNet.

Track the strategic threats to your business with the Threat Brief, delivered to your email daily.

Subscribe Here