This illegal advertising application belongs to the adware category. It is designed to receive and show relevant commercial advertisements in many pop-ups, web browser windows or toolbars. BTGab can be secretly installed to the computer while visiting some insecure web sites. It also may be distributed along with some ad-supported software. The threat alters computer or browser configuration, so it could start on every Windows startup and secretly work in background. BTGab violates user privacy and may decrease overall PC performance.