Threat Description

Leonor

Details

Aliases:Leonor
Category:Malware
Type:Virus
Platform:W97M

Summary



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



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



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

Variant:Leonor.B

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

Variant:Leonor.C

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





Technical Details: Katrin Tocheva and Sami Rautiainen, F-Secure


SUBMIT A SAMPLE

Suspect a file or URL was wrongly detected? Submit a sample to our Labs for analysis

Submit Now

Scan & clean your PC

F-Secure Online Scanner will scan and clean your PC in just a few minutes for free

Learn More