I closed the source code of player in the tags [hide][/hide] for the guest site (CMS Dle) :
[hide]<video width="640" height="360" style="display:block;margin-left:auto;margin-right:auto;" id="" class="default-skin auto-subtitles" poster="---" preload="none" controls
data-setup="{ }"><source src="---" type="video/mp4"></video>[/hide]
in the tags [hide][/hide] for the guest site!
That is, for a guest and a robot, a link to the video is not available.Only this helps. And the attack stopped!