hellovirus
Self-replicating program - unloaded worm
This is a demonstration of how easy it is to write a self-replicating program. This virus will infect all files with names ending in FILETYPE in the directory in which you execute an infected file. If you send an infected file to someone else and they execute it, their FILETYPE files will be damaged also.
Note that this is a safe virus (for educational purposes only) since it does not carry a harmful payload. All it does is prints out this message and comment out the code in FILETYPE files.