In addition to the traditional e-mail chain letter hoaxes, several innocent programs have received lots of publicity lately as they have been accused of being trojans or viruses.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
The first example of these programs was GHOST.EXE. This is a Windows demonstration program which displayed a graveyard and a set of ghosts in a window. On Friday the 13th, the title of the screen was changed to 'Happy Friday the 13th!' and the ghosts started flying around the Windows desktop. This program was analysed and found harmless.