SSIWG

Worm SSIWG spreads in e-mails with infected attachments. When a user executes such attachment, the worm installs itself to the computer and starts to spread. It uses Microsoft Outlook mail application to send its copies to all addresses found in the Address Book. It also places infected files on available shared disks found in a local network. Some versions of this worm contain mistakes in code, so in most cases the worm is not able to distribute itself by e-mail.