Internet Download Manager extension is dangerous for your PC

ByLance T. Lee

Aug 28, 2022

The Google Chrome extension “Internet Download Manager”, which has more than 200,000 user installations, contains adware. According to early user reviews, the extension has been available on the Chrome Web Store since at least June 2019.

Although the extension may install a known and legitimate download manager program, BeepComputer observed the extension engaging in unwanted behavior such as opening links to spammy sites, changing the browser’s default search engine, and tracking the user with pop-ups requesting installation of unwanted programs.

The extension boosts the download speed of the browser tenfold to entice consumers to download it. It is actually an imitation of genuine software supported by Windows since at least June 2019. And we also call it Internet Download Manager. IDM Integration Module is the name of Chrome and Firefox extensions for this software.

Internet Download Manager Chrome extension is malicious

The publisher of the real Internet Download Manager, Tonec, warns users on the site dedicated to this program that “all IDM extensions that can be found in the Google Store are fake and should not be used”, acknowledging that its software reputation is used for malicious purposes. In response to a query from the publication Bleeping Computer, Tonec states that if it regularly alerts Google, the fake variants reappear soon after.

Because installing the extension from the Chrome store is not enough to make the virus active. Advanced users are unlikely to fall for this. Installing a simple browser extension involves one-time manipulation. Which consists of downloading a .zip archive and launching an executable program from it. The experience on Chrome will subsequently change significantly. Because of the JavaScript code that can then run, as it did before. Hackers frequently use Chrome extensions to deliver malware.


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