This joke program shows a small window with a picture of woman's breasts and duplicates it when a user tries to close the window. It also tries to evade mouse cursor on attempt to move it close to the client part of the joke's window. The joke's task can be killed from Task Manager. This will stop it duplicating its windows.
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.