> Especially in case of EXEs, AFAIK not all EXEs has the same 'MAGIC BYTE' > (MZ). MZ only appears in the first two bytes of Win32 executable files. Just for the curiosity: if you'll change "MZ" to "ZM" then the 16-bit executables (MZ and NE executables) will still run and 32-bit (PE) executables will execute their DOS stub part. It will be very interesting to check if such files will be detected as executables at all in all mentioned antiviruses and what sections PE files will be examined. The 'MZ' -> 'ZM' hack is the old feature of MS-DOS loader that still lives in WinXP (at least, didn't tested others, but believe that they also carry that feature). That's what is called 'interoperability between various versions' ;) -- rea
