MS Blast remover is a free utility that can quickly scan your system to detect and remove the W32.Blaster.Worm.
More about MSBlast Remover
MSBlast Remover is a lightweight, downloadable application that runs without installing any components on your system and passes results of the scan to a Webroot hosted web page. For comprehensive results, including recommendations for preventing future infections, the tool should be run with an open Internet connection. Learn more.