NiceHello is a worm that does not have any destructive effects, which spreads via e-mail. When it infects a computer, it sends a copy of itself to all the addresses it finds in the Contact List of the instant messaging application MSN Messenger.
Similarly, NiceHello sends an e-mail message to the virus author, which includes the affected user's MSN Messenger user name and password.
NiceHello reaches computers in a file attached to an e-mail message. The attached file will have one of the following names:
CODIGO.EXE, ANIMACION.EXE, PARCHE.EXE, ACTUALIZACION.EXE, DATOS.EXE, PRESENTACIONES.EXE, PARCHEJUEGO.EXE, FOTOS.EXE, VIDEO.EXE or POLITICOS.EXE.