Although Orbit Downloader is free, it is an advertising-supported product since it offers to change the web browser's homepage upon installation and also offers to install software that are not critical for its operation. Also it has begun to display built-in ads inside the program main window and when a dialog of a finished download appears.
Furthermore, it has been reported that since version 188.8.131.52 Orbit Downloader includes a botnet-like module which performs DDoS attacks without the user's knowledge or permission. Because of this dubious behavior, it is being detected as a virus by security companies. There has been no independent confirmation that this module had been removed in current versions since 184.108.40.206.