I-Worm.Win32.Mari is a mass-mailing worm written in Visual Basic language and has a size of 45,056 bytes.  

The worm sends mail to all addresses in the MS Outlook Address Book. The following is a sample of the mail it sends:..

I-Worm.Win32.PetLil.B is a mass-mailing worm that sends itself to all contacts in Microsoft Outlook Address Book. The email has the following characteristics:

Subject: XXX Picture...
Body: A pretty girl..

W97M.Class is a macro virus that infects "Normal.dot" when the infected Microsoft Word 97 file is opened, then propagates itself to other files.

It drops "Class.sys" under the root directory and adds itself if there is a..