According to Ron Amodeo from ars technica, malware and adware creators have been buying up Google Chrome extensions. Since "one of the coolest things about Chrome is the silent, automatic updates that always ensure that users are always running the latest version," this allows an extension to bought, so that the new owners can "issue an ad-filled update over Chrome's update service, which sends the adware out to every user of that extension."
A first-hand account of this, which was first spotted by OMGChrome, was given by Amit Agarwal, developer of the "Add to Feedly" extension. One morning, Agarwal got an e-mail offering "4 figures" for the sale of his Chrome extension. The extension was only about an hour's worth of work, so Agarwal agreed to the deal, the money was sent over PayPal, and he transferred ownership of the extension to another Google account. A month later, the new extension owners released their first (and so far only) update, which injected adware on all webpages and started redirecting links. Chrome's extension auto-update mechanism silently pushed out the update to all 30,000 Add to Feedly users, and the ad revenue likely started rolling in. While Agarwal had no idea what the buyer's intention was when the deal was made, he later learned that he ended up selling his users to the wolves. The buyer was not after the Chrome extension, they were just looking for an easy attack vector in the extension's user base.
This isn't a one-time event, either. About a month ago, I had a very simple Chrome extension called "Tweet This Page" suddenly transform into an ad-injecting machine and start hijacking Google searches. A quick search for the Chrome Web Store reveals several other extensions that reviewers say suddenly made a U-turn from useful extension to ad-injector. There is even an extension that purports to stop other extensions from injecting ads. Injected ads are allowed in Chrome extensions, but Google's policy states that which app the ads are coming from must be clearly disclosed to the user, and they cannot interfere with any native ads or the functionality of the website.
|Great Animation Promoting Google Fiber With a Brief History of Internet Speeds|
|Advertising Designed to Show a Message Only Children Will See|
|New Rules of Work|
|Official Trailer for 'Life of Pi'|
|The Billboard That Smells Like Steak: Advertising For Your Nose|
|“A company headquartered in Toronto runs a successful affordable mobile phone service in the US.”|
|“Inhibiting this pathway has extended life span in every species studies to date.”|
|Japanese Robot Serves Ice Cream From Inside a Vending Machine|
|“Civilisation is a movement, and not a condition, a voyage and not a harbour.”|
|Why, Typewriters Are Alive and Well, Thank you|
|Somebody Needs to Build a New Facebook Stat|
|The (Very Scary) People of Public Transit|
|“Prof Mallett has wanted to build a time machine for most of his life.”|
|CaptchaTweet: Write Tweets in Captcha Form|
|How to Avoid Jury Duty|
|“Artificial intelligence can detect your sexuality and politics just by looking at your face.”|
|“Social media can be good but we must be careful with how we use it.”|