I'm no pro at coding, but has anyone tried reaching out to the devs of Will To Live Online? Maybe they can provide some insight or even an official patch to fix the exploits.
"Yo, anyone got a working leak for WTL Online's client? Been searching for days and still can't find a decent mod. If anyone's willing to share, I'd appreciate it."
"Honestly, I'm not sure if the source codes for Will To Live Online cheats are available or not, but I can try digging it up for you. Have you checked any of the game's dev forums or modding communities? Maybe someone's shared the code or has a link to it."