It appears that over 100K users have downloaded a Chrome extension call Archive Poster and is mining Monero whenever the browser is open. It seems like everyday there’s a new cryptoming malware release and all the browsers are being hijacked one way of the other. Also, this thing has been reported to Google for weeks and it’s still available for download on the Chrome Web Store. At this time it’s not known if it’s an intentional addition to the extension or not.
Google doesn’t seem to care, allowing the extension to continue to be available on the official Chrome Web Store. A user even reported Archive Poster on the Google Chrome Help Forum, but a Google staffer told the user “to get in touch with the extension developer for further assistance.”