Ibex aka Bones replicates when you boot from an infected floppy. Once you infect a machine, all accessed floppies get the virus.
Ibex has code to activate and overwrite all of the hard drive on the 7th of each month when any floppy disk is accessed.
Ibex was reported to be in the wild in USA in December 1995.
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.