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 application 7fc841e5-f25c-434f-83d3-8967e4853c43.exe, “Internet Speed Checker exe” by Naruto Source has been detected as adware by 20 anti-malware scanners. It runs as a scheduled task under the Windows Task Scheduler triggered to execute each time a user logs in. This file is typically installed with the program Internet Speed Checker by Sailor Project which is a potentially unwanted software program. It is built using the Crossrider cross-browser extension toolkit. While the file utilizes the Crossrider framework and delivery services, it is not owned by Crossrider. It is part of the Brightcircle group of web-extensions that inject advertisements in the browser.