A badly written virus, which contains the text
The Midnight Serial Killer is roaming in your computer...Beware! [JD]
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 scanning & removal options
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.
One slightly longer variant is known, where the following text message can be found:
The Eternal Blaze Virus has been unleashed...Beware! [JD]
As the viruses destroy the programs they infect it is extremely difficult for them to spread unnoticed.