Enciclopedia Virus reports that
the FBI confiscated SCO servers and workstation. These seizures are, according to an IBM employee, both in connection with the SCO vs. IBM lawsuit about the copyright of certain IBM-contributed Linux source files, and with the spread of the MyDoom/Novarg worm. So, SCO seems to be suspected of having brought this worm into the wild by itself (or by one of its employees) to spin-doctor the public opinion about the Linux and open source community.
If you can't read the article because you don't speak Spanish, don't worry,
the fish and some basic knowledge of Latin vocabulary helps a lot in understanding the text.