Besides the StripedFly cryptomining botnet (1M devices) spotted by Kaspersky, there's another ginormous crypto-mining botnet spreading around too.

This one was spotted by Positive Technologies, another Russian security firm, and primarily infected Russian users (blame it on boobytrapped torrents). This one hit 250k users.

https://www.ptsecurity.com/ru-ru/research/pt-esc-threat-intelligence/a-pirated-program-downloaded-from-a-torrent-site-infected-hundreds-of-thousands-of-users/