W32.HLLW.Neight

W32.HLLW.Neight is a mass-mailing worm. It uses Microsoft Outlook to send itself to all contacts in Outlook Address Book. The email message can have various subject lines; the attachment is PhotoAlbum.exe.

The worm creates a Visual Basic (VB) script file and inserts this file into Microsoft Word documents. This VB script file is also a mass-mailing worm that emails itself to the first 50 contacts in the Outlook Address Book. This email message has the subject "Important E-Mail from <current user>," and the Melissa.vbs file is attached.

The worm attempts to spread by copying itself to the KaZaA shared folder and ICQ shared folder.