An adware named Stamplive comes out.
Users have somehow acquired Stamplive which could pop up ads to drive them to distraction. They checked for browsers, no rogue extension found. They checked Windows and Programs and Features, no unusual programs found. They assume it's a rootkit and they think it already synched with browsers. And the reason why they can't find it hides itself up. Some victims claim that they can't close Stamplive boxes without shutting down chrome through the task manager.