There are a number of procedures that people can follow. We're still in the middle of this attack. It has probably reached its peak now, in that we've had one complete day with the virus. Most systems have been exposed to it now, and people are taking action to control the problem. I think we will see many more of the existing types of viruses before we see anything important and new.
Viruses are just programs.
They are often badly written, but there is no magic formula for writing viruses. The most important thing for most companies is to contain the problem and restore confidence in their systems, to get back to work as soon as possible. For other viruses, further measures may be necessary. Companies may also wish to consider reporting viruses to law enforcement agencies. The larger the organization, the greater the probability.