In 2013, it was discovered that it's servers are currently down, and any registration key entered in its download window is useless.
It had its own website, Navashield.com. NavaShield's site looked very user friendly like any antivirus website, so normal Windows users may have thought it was legitimate. This is aided by the rogue's design.
The rogue does not do anything until one week has passed, when it begins nagging the user to buy the "full" version. It does this by making an annoying ticking sound and displaying an ad encouraging you to buy NavaShield. After the rogue has been on the system for several more weeks, it attempts to simulate an actual malware infection to get the user to purchase the fake program. To do this, it plays the sound of a group of men laughing over and over again. If the user has one of Microsoft's Text-To-Speech voices installed (usually Microsoft Sam), Navashield will make the TTS Voice swear at the user or say nonsensical things, such as "I am a Robot from outer space." The icon tray bar will also start changing in size, and random websites are opened in the user's web browser. Finally, another laugh that is higher in pitch starts to play.
Another variant of Navashield will fake a malware infection by displaying an inescapable message box that says "Disk drive C:\ is being deleted" and slowly grows while making a beeping sound. Eventually it consumes the entire screen, and afterwards it flashes to your desktop wallpaper, but with no icons, taskbar, etc. Some minutes after rebooting, the screen goes back to normal.