The Zimperium zLabs team recently discovered a malicious browser extension, originally called Cloud9, which not only steals the information available during the browser session but can also install malware on a user's device and subsequently assume control of the entire device. In this blog, we will take a deeper look into this malicious browser extension.
The “Dormant Colors” is yet another vast campaign of malicious extensions with millions of active installations worldwide, this time with a color-related theme and full of deception all through the chain. It starts with the trickery malvertising campaign, continues with a crafty novel way to side-load the real malicious code without anyone noticing (until now!), and finally with stealing not only your searches and browsing data, but also affiliation to 10,000 targeted sites — a capability that is easily leveraged for targeted spear phishing, account takeover and credential extraction — all using this powerful network of millions of infected computers worldwide!
A few months ago, we blogged about malicious extensions redirecting users to phishing sites and inserting affiliate IDs into cookies of eCommerce sites. Since that time, we have investigated several other malicious extensions and discovered 5 extensions with a total install base of over 1,400,000
"...the extensions also track the user’s browsing activity."
A vulnerability in the Mac Zoom Client allows any malicious website to enable your camera without your permission. The flaw potentially exposes up to 750,000 companies around the world that use Zoom to conduct day-to-day business.
Despite open source software’s essential role in all software built today, it’s far too easy for bad actors to circulate malicious packages that attack the systems and users running that software. Unlike mobile app stores that can scan for and reject malicious contributions, package repositories have limited resources to review the thousands of daily updates and must maintain an open model where anyone can freely contribute. As a result, malicious packages like ua-parser-js, and node-ipc are regularly uploaded to popular repositories despite their best efforts, with sometimes devastating consequences for users.
How handcrafted SVGs in applications can compromise applications and lead to full remote code execution in MIT’s Scratch.