This is family of two viruses, which originated in Solano county in California. One, known as "Dyslexia" is 2000 bytes long and adds 1991 bytes in front of .COM files and 9 bytes at the end.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.
The other known member of the family, "Subliminal 1.10" is 1494 bytes long. This variant constantly flashes the text "LOVE, REMEMBER?" for a fraction of a second in a corner of the screen.