It seems that the bruteforcer didnt knew how things and member levels work in ExeTools (= isnt a member or never been) because bruteforcing my account doesnt make any sense, since my level allows basic and limited things in forum and only uploading in FTP (the interesting part for most).

Anyway, a forum/ftp ban to the C class (218.86.217.*) would be good solution for now. And I dont believe that is an open proxy because ports 8080 and 1080 are closed.