The security researcher Andrey Meshkov, co-founder of Adguard, has discovered five malicious Ad Blockers extensions in the Google Chrome Store that had been installed by at least by 20 million users.
The fake Ad blockers are
Seven months ago big news broke: 37,000 users were tricked into installing a fake Adblock Plus extension.
What if I told you that thanks to poor Chrome's WebStore moderation the situation is much worse, and in reality over 20,000,000 users are affected and tricked into installing fake malicious ad blockers
“Just look at the search results. All the extensions I’ve highlighted are simple rip-offs with a few lines of code and some analytics code added by the “authors”. Instead of using tricky names they now spam keywords in the extension description trying to make to the top search results.”
Now this is quite disturbing that not only are Chrome Webstore lacking in their screening process, but they are actually allowing malicious code to be uploaded and then installed in unsuspected users computers forming botnets right out of Chrome's own webstore?
If you want to know more about the analysis done by Andrey, then check out his blogpost here: https://blog.adguard.com/en/over-20-000-000-of-chrome-users-are-victims-of-fake-ad-blockers/
It seems that since Andrey wrote this all five adblockers have been removed from the Chrome Webstore. A bit late, but better late than never I suppose?