Because computer worms do not spread by email, you may have little or no warning before your computers are infected. There are such things as mass-mailing worms that are spread by e-mail, so the first part is not technically correct. The second, however, is certainly correct for Sasser. The creater of Sasser are prolific, too. With four variants in as many days, it looks like someone's making use of their debugging skills. If you know a geek in the IT security field, they may need a hug today. ;)
Is this the vulnerability that the critical updates covered a couple of weeks ago? I just checked windows update and there were no new critical updates.
I have a 5 computer network here at work that I want to make sure is safe. I've updated the AV but would like to know that I've got the vulnerabilities covered.