Just remember, kids, nothing on the Internet is ever really private...

Documents: FBI Spyware Has Been Snaring Extortionists, Hackers for Years | Threat Level from Wired.com

The documents, which are heavily redacted, do not detail the CIPAV's capabilities, but an FBI affidavit in the 2007 case indicate it gathers and reports a computer's IP address; MAC address; open ports; a list of running programs; the operating system type, version and serial number; preferred internet browser and version; the computer's registered owner and registered company name; the current logged-in user name and the last-visited URL.