I received 2 copies of this email yesterday, and downloaded the MSOUTRC2007Update-KB863892.exe from http://cronos.dsmodena.it/************/.
A NIS scan showed the file to be safe. Upon installation it created the following files and added them to HKCU\..\Run:
C:\WINDOWS\config.exe
C:\WINDOWS\MSHelp.exe
C:\WINDOWS\helpme.exe
Also created and set to run as a service:
C:\WINDOWS\AntiSpyware.exe
C:\WINDOWS\spywaredoctor.dll
It also added AntiSpyware.exe entries to HKLM\SYSTEM\ControlSet003\Services\
Manually deleted all files and registry entries.

This information is provided for those who unknowingly got caught with this as an aid to clean their system.