The developers, XSTNS GAMES, face a constant battle against these exploits. While grinding stats isn't inherently bannable, using scripts to do so certainly is. This has led to a culture of secrecy where scripters recommend using "Alt Accounts" to test new versions before risking their mains.
There are various aimbots available, some of which are open-source. However, integrating or developing these requires significant programming knowledge, typically in C++. ff2 qb aimbot