//該腳本對應光盤:\chap03\IDA pro\encrypted\encrypted.exe
#include <idc.idc>
static decrypt(from, size, key ) { 
   auto i, x; 
   for ( i=0; i < size; i=i+1 ) { 
      x = Byte(from); 
      x = (x^key); 
      PatchByte(from,x); 
      from = from + 1;
   } 

}