Chrome web dev plugin with 1m+ users hijacked, crams ads into browsers
Toolmaker phished, Google account pwned, malicious code pushed out – and now fixed
Chris Pederick, maker of the Web Developer for Chrome extension, is urging anyone who uses his programming tool to update to version 0.5 or later. That's because miscreants apparently phished his Google account, updated the software to version 0.4.9, and pushed it out to its 1,044,000 users.
It's understood the software was compromised about five to six hours ago, around 6am Pacific Time, pulled down from the Chrome store around 8am PT, and fixed about an hour later. Here's the key tweets from Pederick, a software engineer based in San Francisco:
The Web Developer for Chrome account has been compromised and a hacked version of the extension (0.4.9) uploaded 😞— Chris Pederick (@chrispederick) August 2, 2017
Version 0.5 of Web Developer for Chrome is now live which removes the compromised code. Please update immediately.— Chris Pederick (@chrispederick) August 2, 2017
I stupidly fell for a phishing attack on my Google account 😞— Chris Pederick (@chrispederick) August 2, 2017
With over a million users, the compromised code would have allowed the crooks behind the scam to bank a sizable commission from the ads during the few hours the evil JS was active. Not every machine running the extension was affected, it seems – here's an example of the injected advertising:
Weird thing is I could only get 2 machines out of 10 to generate the ads. All had 0.4.9 on them. pic.twitter.com/ZG0L1h75qT— ᕦ[ •́ ﹏ •̀ ]⊃-]═── (@SEOMalc) August 2, 2017
The Firefox version of the plugin is not believed to have been compromised. The cause of the incident, Pederick believes, was a phishing email that resulted in the loss of his developer credentials. Folks have posted various negative reviews on the Chrome plugin's page, complaining of ads and Google Analytics tracking suddenly appearing in the software.
The tool normally "adds a toolbar button to the browser with various web developer tools." It's a Swiss army knife for coders.
We've asked Pederick for comment, and will update this piece with more information as it becomes available, such as what was the situation with his Google account and two-factor authentication. ®
Sponsored: Becoming a Pragmatic Security Leader