Espejo is a typical boot sector virus. It's partly encrypted and contains the following text:
Esto te pasa por programas que a nosotros nos cuesta tanto trabajo hacer. Que te quede de Experiencia, Mexico,1994
which translates to something like this:
This happened to you because you copied the programs we worked so hard at to create. Remember this experience, Mexico, 1994
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
The virus activates on April 7th. On that date it will overwrite part of the hard drive with the above message.
Virus also contains this encrypted text:
This Virus is from MEXICO, I have 15 years old
Date Created: -
Date Last Modified: -