Category: Malware

Type: Virus

Platform: W97M

Aliases: Leonor


W97M/Leonor is a simple Word macro virus. It consists of one module "AutoOpen" and infects when open documents.


Automatic action

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

Knowledge Base

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About the product

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Submit a sample

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Technical Details

Depending on a random number, every Monday or Saturday W97M/Leonor virus creates 100 text files in the "C:\WINDOWS\ESCRITORIO" directory. These files contain the following string:

I love Leonor forever

The names of the files range from "1.txt" to "100.txt".

The virus also contains the comment:

Leonor macro (v1.1) made by uhjov


This variant is similar to W97/Leonor.A. The files it creates when payload activates contains the following text:

Recuerdo de Leonor 	

Una noche de verano
 -estaba abierto el balcn
 y la puerta de mi casa-
 la muerte en mi casa entr.
 Se fue acercando a su lecho
 -ni siquiera me mir-,
 con unos dedos muy finos
 algo muy tenue se rompi.
 Silenciosa y sin mirarme,
 la muerte otra vez pas
 delante de m. Qu has hecho?
 La muerte no respondi.
 Mi nia qued tranquila,
 dolido mi corazn.
 Ay, lo que la muerte ha roto
 era un hilo entre los dos! 		 		A. Machado 		 		

The comment in the virus code is also different:

Leonor macro (v1.2) made by Uhjov


W97M/Leonor.C is slightly modified variant from W97M/Leonor.A.