What is the file in a WordPress website?

Anyone any idea why someone would try this I know it has something to do with WordPress But I still

!> adminUrl> postEditingUrl> ![CDATA[ wp-admin?action=edit&post=

slot number There's no point in removing it It's a static file with information on how Windows Live Writer can talk to wordpress

slot ggbet I have constant probes, hacking and web app attack attempts on my sites, search WP paths to access Is there a way to set this up either