I used a very similar approach in the mid-ninties to get full root access to all of our high-school's systems (which was technically not even illegal at this ti

I used a very similar approach in the mid-ninties to get full root access to all of our high-school's systems (which was technically not even illegal at this time and place). The output file used a simple single-character XOR obfuscation, to make it a little bit less obvious if someone looked at the log file.