This adware is a web browser extension that will inject advertising in the browser in the form of unwanted banners and text-links which may link to malware sites and install unwanted software. The module internet speed checker-buttonutil.dll by Naruto Source has been detected as adware by 11 anti-malware scanners. This file is typically installed with the program Internet Speed Checker by Sailor Project which is a potentially unwanted software program. The ButtonUtil module (32-bit version) uses the Crossrider web extension monetization toolkit and will perform a number of helper integration activities on the user's web browser's as well as the Window's Shell in order to install the addon. It is part of the Brightcircle group of web-extensions that inject advertisements in the browser.