QSearch fits the mold of garden-variety Mac adware, which means that disabling it equals completely removing the associated app, browser extension, and files. There is an extra layer of the system tidying, though. To maintain persistence, this threat enrolls a new login item and creates a configuration profile that manages browser behavior. Furthermore, QSearch tends to add an enterprise policy in Google Chrome so that the victim’s web surfing activity follows a rogue pattern specified by the infection. All of these must be removed as well. To get started on repair, though, you should stop the process used by this malicious app; otherwise it may re-download its components, thereby making your effort futile. Open the Activity Monitor, pinpoint the executable named QSearch or another one you don’t recognize, and force quit it. Then, check the LaunchAgents, LaunchDaemons, and ApplicationSupport directories for suspicious items and send them to the Trash once found. To overcome the persistence tricks mentioned above, head to Users & Groups and Profiles under System Preferences and delete unwanted entries spawned by the pest. Finally, open the affected web browser and disable the QSearch extension. If it’s not listed there, go ahead and reset the browser’s settings to their original defaults. At this point, all that’s left to do is customize the homepage, search engine, and new tab page so that the browser loads the right services when you need them.