Here is a list of the Sony and EMI CD that contain the XCP software.
If you have played one of these CD on your PC then you are infected.
BACKGROUND FOR THOSE WHO CAME IN LATE:
The "XCP" copy protection on certain Sony music CD installs rootkit
software to hide the copy protection software from the computer owner.
This problem only affects Microsoft Windows computers. Apple Mac
users are safe from this particular flaw.
That Sony rootkit is now being used by virus authors to hide their
viruses from antivirus software. There is a background article on it
Un-installing the XCP software by simply deleting the files will cause
your CD drive to stop working. There is a very technical explanation
Sony provides an un-install utility. However, the un-install has a
bug in it that causes it to install another security flaw (in ActiveX)
that has already been exploited by malicious hackers.
See info at
Information on XCP hiding viruses is at
There are complicated manual removal procedures at
but I haven't tried them and I don't know if they will work. You may
need the Rootkit Revealer software from the nice people at
Sysinternals just to find the files so you can delete them.
There are instructions for patching the security hole that the Sony
un-installer creates at
If you are infected then you can go to Google and search for
xcp class action lawsuit