Chrome extensions with 1.4M installs covertly track visits and inject code

Google has eliminated browser extensions with greater than 1.4 million downloads from the Chrome Web Store after third-party researchers reported they had been surreptitiously monitoring customers’ looking historical past and inserting monitoring code into particular ecommerce websites they visited.

The 5 extensions flagged by McAfee purport to supply varied companies, together with the flexibility to stream Netflix movies to teams of individuals, take screenshots, and mechanically discover and apply coupon codes. Behind the scenes, firm researchers mentioned, the extensions stored a operating record of every website a person visited and took further actions when customers landed on particular websites.

The extensions despatched the title of every website visited to the developer-designated website, alongside with a novel identifier and the nation, metropolis, and zip code of the visiting machine. If the positioning visited matched a listing of ecommerce websites, the developer area instructed the extensions to insert JavaScript into the visited web page. The code modified the cookies for the positioning in order that the extension authors obtain affiliate cost for any objects bought.

To assist hold the exercise covert, among the extensions had been programmed to attend 15 days after set up earlier than starting the info assortment and code injection. The extensions McAfee recognized are:

NameExtension IDUsers
Netflix Partymmnbenehknklpbendgmgngeaignppnbe800,000

Netflix Party 2


FlipShope – Price Tracker Extension



Full Page Screenshot Capture – Screenshotting


AutoBuy Flash Salesgbnahglfafmhaehbdmjedfhdmimjcbed20,000

As of Wednesday, all 5 extensions have been faraway from the Chrome Web Store, a Google spokesperson mentioned. Removing the extensions from its servers isn’t the identical as uninstalling the extensions from the 1.4 million contaminated units. People who’ve put in the extensions ought to manually examine their browsers and guarantee they not run.


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