Information security researchers are highlighting how attackers could use the File System Access API in some browsers to encrypt user files to try and extort money from them.
You probably know better than to click on links that download unknown files onto your computer. It turns out that uploading files can get you into trouble, too.
These capabilities, combined with the browser’s access to the host computer’s files — including ones in the cloud, shared folders and external drives — via the File System Access API In particular, we designed and implemented the first browser-based ransomware called RøB and analyzed its use with browsers running on three different major operating systems — Windows, Linux and MacOS — five cloud providers and five antivirus products.Because RøB runs within the browser, there are no malicious payloads for a traditional antivirus program to catch. This means existing ransomware detection systems face several issues against this powerful browser-based ransomware.
File System Access API Google Chrome Headline Microsoft Edge Ransomware Security
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