Recently, we came across an emerging botnet as-a-service, the Cayosin Botnet. We first observed Cayosin on January 6, 2019, and activity has been ramping up. We have data on 55 scanning IPs, with indicators consistent to attacks built into Cayosin. Based on data from the threat actors, the bot count is over 1,100 as of February 2nd.

REFERENCE:
https://perchsecurity.com/perch-news/threat-report-sunday-february-3rd-2019/