Free Software

Not freeware or shareware
All links are good - updated 11/01/2005

RootKits download

Sysinternals - Rootkit removal (bottom)
Microsoft - Ghostbuster detection
Microsoft - Malicious removal

Not Free but use it

F-Secure - Beta Rootkit tool
 
GRC - Main Rootkits Links

RootKits Info Links

Sony - Remove Now
Sysinternals - Found Sony Rootkits
PCWorld - Rootkits: Invisible Assault on Windows
PCWorld - Sony Uncloaks Hidden DRM Code
Symantec Corp RootKit in SystemWorks
Norton - Eweek posted Jan 11, 2006

RootKits is another spyware attack but its hides as hidden files on your computer.
This is new but you need to stay informed of this new attack.