A small virus, with an interesting encryption algorithm, and a strange twist: when it is run it will infect all programs in the current directory, but the length of the first one increases by 268 bytes, the next one by 269 bytes, then 270 and so on.
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.