http://spywareitdaiuyfo2sqb5vsg7mek5cjabdr73luhnda57t2hyuzg7yyd.onion/articles/redshell.html
The purpose of this is to fingerprint the user as well as possible, destroying any kind of anonymity. It goes beyond most spyware programs in the information it collects, by scanning your computer for installed programs and collecting various demographic information about the user.