decompile the 'Donkey Trigger' and u will be able to stop those forms of attack.
which is what they want of course!!!.... as they (D2 & Keytonics friends ehh X22) make money .... you patch it , that in turn makes it anulled. $30 bux gone, and then they will make another undetectable cheat , which they sell for another $30 bux.
your anticheat if this is ever goin to come-about (whistles*)....
woudl be to target memory injections which is the next wave of attacks , as donkey trigger shows, it is merely a .exe which resides in your system tray and is loaded after you have started ut.
good luck
one way you may approach this is to create something of similar nature to an Antivirus
, where by it searches for malformed strings in code that are tested against a db of malformed strings. And if found then player is kicked banned and sent packing.