If you've seen any of the Terminator movies, you might remember that Arnold Schwarzenegger plays a deadly T-800 assassin robot. In Terminator 2, there's an even more deadly robot called the T-1000. So, when you hear about a virus called the T9000, you know it has to be bad.
Unlike the terminators, however, which announce themselves by leaving a trail of bodies and blowing up half of Los Angeles, the T9000's danger is that you don't even know it's there. According to security researchers at Palo Alto Networks, it sits quietly on your computer stealing your information.
While the T9000 steals data from the usual places, such as documents and Web history, it goes a bit further. For example, it can take screenshots of what you're doing on your computer, steal encrypted data, and it is especially good at stealing information from Skype. It actually records and stores audio and video from you Skype conversations.
While T9000 was originally targeted at companies and high-profile individuals, it's spreading fast because it works on any computer and doesn't take much to install. In fact, it won't even trip most security software.