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 91f4895b-5e2a-42e4-b330-e2e713d86f4c.exe by King Gainer Lab has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a scheduled task under the Windows Task Scheduler triggered to execute each time a user logs in. It is distributed as part of the Brightcircle group of browser-extensions.