Browser Hijacker
GhostPoster attacks hide malicious JavaScript in Firefox addon logos
A new campaign dubbed ‘GhostPoster’ is hiding JavaScript code in the image logo of malicious Firefox extensions with more than 50,000 downloads, to monitor browser activity and plant a backdoor. The malicious code grants operators persistent high-privilege access to the browser, enabling them to hijack affiliate links, inject tracking code, and commit click and ad fraud. […]
New Syncjacking attack hijacks devices using Chrome extensions
A new attack called ‘Browser Syncjacking’ demonstrates the possibility of using a seemingly benign Chrome extension to take over a victim’s device. The new attack method, discovered by security researchers at SquareX, involves several steps, including Google profile hijacking, browser hijacking, and, eventually, device takeover. Despite the multi-stage process, the attack is stealthy, requires minimal permissions, […]
Malware force-installs Chrome extensions on 300,000 browsers, patches DLLs
An ongoing and widespread malware campaign force-installed malicious Google Chrome and Microsoft Edge browser extensions in over 300,000 browsers, modifying the browser’s executables to hijack homepages and steal browsing history. The installer and extensions, which are usually undetected by antivirus tools, are designed to steal data and execute commands on infected devices. The campaign was discovered by […]