Startscan.net or http://Startscan.net/9/ pop-up is a harmful cyber threat classified as browser hijacker malware which in fact belongs to a fraudulent domain. It’s distributed by cyber hackers to cause troubles to target computer and internet users. Careless users may get caught by the virus unknowingly when they visit hacked websites or download insecure “free” application through the internet. Don’t belittle the bug. It’s dangerous enough to overwhelm the whole PC system if not taken seriously.