Where do these 404 responses come from in Yandex Webmaster?

Question

cloudflare

Good day.
For the past few days, Yandex.Webmaster has been reporting that yesterday there were 0 pages on my site with a 200 response and 60+ with a 404 response.
Of course, I became interested in what was happening and saw the following picture:

I want to note that I have such pages on my site not at all and never has been.
Where did they come from? Yandex? wordpress? cloudflare? Viruses? Some questions.
Has anyone else experienced this kind of crap?
Example pages:
../reg/addcity.php?idC=1&idR=34
../reg/reg1.php?idC=24
../reg/addcity.php?idC=1&idR=18
../recover/
.. /imya/
../cdn-cgi/l/email-protection
On the second site, which is on the same hosting, similar crap, only links of a different kind:
../en/joomla/smart-seach/seach
../k2/k2-grid/grid-2-columns/item/397-vestibulum-sit-amet-fringilla-lobortis-posuere-at-odio-class-aptent -taciti
../en/?tmpl=comingsoon
And so on.
The second, by the way, without Cloudflare, but both of them are on WP, and I have no idea where the links to Joomla come from.
Has anyone experienced this and what do you recommend?

Answer 1

Look at the sitemap