WM97/Melissa-AB is based upon a number of different Word macro viruses, the main one being WM97/Melissa.
Upon closing an infected document the virus does the following:
In December, if the day of the month is greater than the 23rd, the virus displays a message box asking:
"I wish you a Merry X-mas!! Do you love me ?"
If you answer "Yes" the virus responds with
"Thank You! I Love You. You are so cute."
If you answer "No" the virus responds with:
"You are so rude."
"Fuck you, Asshole!"
The virus then forwards itself to the first 15 addresses in your mail address book:
Subject: An important advice from <username>
Message text: Take a look in this Document, urgent suggestions to be a cool man!! ;-)
The currently opened document is attached.
On January 1st the virus displays the message:
"Happy New Year!!"
On the 28th or 29th of February it displays the messsage:
"It's Kouki's Birthday!"
Also upon opening of an infected document the virus disables all the menus in Word. To recover from this payload delete your NORMAL.DOT global template.