If you would like to block this traffic, below is my pf firewall rules you can copy-paste with all the yandex ip ranges:
```
block in quick from 5.45.198.0/23
block in quick from 5.45.224.0/25
block in quick from 5.255.192.0/18
block in quick from 37.140.190.0/23
block in quick from 77.88.28.0/24
block in quick from 77.88.29.0/24
block in quick from 87.250.224.0/19
block in quick from 95.108.128.0/17
block in quick from 95.108.130.0/23
block in quick from 95.108.205.0/24
block in quick from 178.154.239.80/28
block in quick from 178.154.239.72/29
block in quick from 178.154.239.144/28
block in quick from 178.154.239.136/29
block in quick from 178.154.239.208/28
block in quick from 178.154.239.200/29
block in quick from 213.180.192.0/19
block in quick from 2a02:6b8:c00::/40
block in quick from 2a02:6b8:0:1472::/64
block in quick from 2a02:6b8:0:1619::/64
block in quick from 2a02:6b8:0:1a2d::/64
block in quick from 2a02:6b8:0:801::/64
```
Likely incomplete, it's usually kind of like whack-a-mole with these things,...
