We experienced this at our site.

Fortunately we were able to use Novell's Filer utility to restore all of the deleted versions of the SCT files (we didn't need to go tape backup). Due to ricocheting infection (we have several curious users), we made sure that we were restoring the correct version of the SCT files by the size of the infected versions which were all of identical size. It took us about 4-6 hours to recover from the hit.

There is a lot of good help available regarding clean up from Norton and Macafee for those unfortunate enough to be hit.

One thing we 'discovered' was that people need to make sure that they get rid of infected files from the recycle bin after they have deleted them.