Abusing callback to run shellcode.
Eksekusi shellcode dengan DrawState.
BOOL DrawStateA (HDC hdc, HBRUSH hbrFore, DRAWSTATEPROC qfnCallBack, LPARAM lData, WPARAM wData, int x, int y, int cx, int cy, UINT uFlags);
BOOL DrawStateW (HDC hdc, HBRUSH hbrFore, DRAWSTATEPROC qfnCallBack, LPARAM lData, WPARAM wData, int x, int y, int cx, int cy, UINT uFlags);