alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed WaveStealer Related Domain (wavebysudryez .fr in TLS SNI)"; flow:established,to_server; tls.sni; bsize:16; content:"wavebysudryez.fr"; fast_pattern; reference:url,twitter.com/crep1x/status/1782887599788486787; reference:md5,3fad2c665be40587cc55b6ec71b5e69e; reference:md5,3fad2c665be40587cc55b6ec71b5e69e; classtype:domain-c2; sid:2052252; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_04_24, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_24, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)