alert dns $HOME_NET any -> any any (msg:"ET MALWARE PHPStudy CnC Domain in DNS Lookup"; dns.query; content:".360se.net"; pcre:"/^(?:www|bbs|cms|down|up|file|ftp)/"; reference:url,github.com/blackorbird/APT_REPORT/tree/master/phpstudyGhost; reference:url,twitter.com/blackorbird/status/1175951448678420480; classtype:domain-c2; sid:2028630; rev:3; metadata:affected_product Web_Server_Applications, attack_target Server, created_at 2019_09_25, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_02;)