From the doc: 'RegFun is a very simple program, created to get access to lamerz on LAN partys. It looks like a folder but it is actually a program that enables the remote administration via registry. This won't ever be recognized as trojan or virus coz it does nothing bad. The victim needs to restart his computer in order that the changes take effect (use a nuker or something like that). The default password is 'vxrulez', change it if you want. After the program has made the changes it waits some time and then shows a fake error messagebox. You should change the message to your language. The program does NOT work on winNT/win2K coz there's no remote admin option on these systems.'