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:..

T-Rex.1800 is a DOS memory-resident virus.

It infects ".COM" and ".EXE" files. However, this virus does not infect "COMMAND.COM" and files with the text string WIN and F-PROT in it.

T-Rex.1800 is a DOS memo..

VBS.San.A is written with Visual Basic Script and spreads via emails. It utilizes the security vulnerability of MS Outlook Express, infecting the system through opening of the email or through Preview Pane.

It deletes all folders in C..

VBS.Valentin is written with Visual Basic Script and spreads via emails. It utilizes the security vulnerability of MS Outlook Express, infecting the system through opening of the email or through Preview Pane.

It deletes all folders i..

W95M.Alex.A is a macro virus that displays an illegible message. If the user clicks OK, it deletes c:autoexec.bat, c:config.sys, and c:command.com on 23rd of every month.

On every 1st of the month, it displays a m..