This virus infects EXE files when they are executed. It won't infect TURBO.EXE, P.EXE, QBASIC.EXE or Windows kernel (KRNL*.EXE) files.
Bresci contains an activation routine which attempts to display some video tricks on the screen. Otherwise the virus just spreads.
Bresci was reported to be in the wild in Switzerland in July 1996.
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