Informations in RS2 WebAdmin are encoded in iso-8859-1 as default, causing all the Korean characters break down. The most painful part here is being blocked to send messages in web admin.
This mod is server-side mutator for server(s) running in Korea, which gives an option to utilize web admin chat console. When server receives a message in following format, broadcast handler renders it as complemented one:
(from web) /kaTest! /BB34/C2A8 /C77C/C774/C5D0/C694/003F?
(in game) Test! 무슨 일이에요?