In this game there are two roles. The attacker and the defender, both processes running in userspace. The attacker's goal is to make changes and modify behavior in the defender's program without being detected.
The defender's goal is to detect and stop the attacker at all costs.
Note that the attacker must have root privileges, but the defender must not.
Run setuid.sh to take root ownership of the attacker executable and set the
setuid bit.
Run the judge to initiate the battle.