alert dns $HOME_NET any -> any any (msg:"ET MALWARE Cayosin/Mirai CnC Domain in DNS Lookup"; dns.query; content:"hostnamepxssy.club"; nocase; endswith; reference:url,perchsecurity.com/perch-news/threat-report-sunday-february-3rd-2019/; classtype:command-and-control; sid:2026915; rev:3; metadata:created_at 2019_02_15, deployment Perimeter, malware_family Mirai, malware_family Cayosin, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_16;)