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.
This variant sends messages with the following content:
Subject: Thank You For Flying With Arab Airlines Body: Please check if the bill is correct, by opening the attached file. Attachment: ArabAir.TXT.vbs
VBS/LoveLetter.K deletes files with ".dll" and ".exe" extensions and creates a new file with an additional ".vbs" extension. Then the virus locates all files with the ".sys" extension, creates a new file with the ".vbs" extension and hides the original file.