This virus is probably made in South America.
Three_Tunes allocates approximately two kilobytes of memory and infects practically all executed COM and EXE files.
Three_Tunes activates during June, when it randomly plays one of three simple tunes through the speaker.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
Description Created: Mikko Hypponen, F-Secure and Ecuanex supportteam