WoofLocker Toolkit Hides Malicious Codes in Images to Run Tech Support Scams

Cybersecurity researchers have detailed an updated version of an advanced fingerprinting and redirection toolkit called WoofLocker that's engineered to conduct tech support scams. The sophisticated traffic redirection scheme was first documented by Malwarebytes in January 2020, leveraging...

Malvertising campaign on PornHub and other top adult brands exposes users to tech support scams

Threat actors involved in tech support scams have been running a browser locker campaign from November 2020 until February 2021 on the worlds largest adult platforms including PornHub. The same group behind this campaign has been active for much longer and we believe is tied to previous schemes...

Facebook, News and XSS Underpin Complex Browser Locker Attack

A sophisticated “browser locker” campaign is spreading via Facebook, ultimately pushing a tech-support scam. The effort is more advanced than most, because it involves exploiting a cross-site scripting XSS vulnerability on a popular news site, researchers said. Browser lockers are a type of...

WOOF locker: Unmasking the browser locker behind a stealthy tech support scam operation

Update 01-27-2020: Shortly after this blog was published we noticed that a large part of the infrastructure behind this browlock was taken down. The malicious server responsible for redirections is no longer responding and we have not observed any new live browlock from this 2 year old campaign. ...

Browlock flies under the radar with complete obfuscation

Browlocks are the main driving force behind tech support scams, using a combination of malvertising and clever browser locker tricks to fool users. In fact, the effects can be so convincing that people call the rogue Microsoft support number for help because they believe their computer has been...

Partnerstroka: Large tech support scam operation features latest browser locker

Tech support scams continue to be one of the top consumer threats in 2018, despite actions from security vendors and law enforcement. Scammers are constantly looking for new ways to reel in more victims, going beyond cold calls impersonating Microsoft to rogue tech support ads using the good name...