alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Ave Maria/Warzone RAT Encrypted CnC Checkin (Inbound)"; flow:established,to_client; stream_size:server,=,13; dsize:12; content:"|5a 6f 57 81|"; depth:4; fast_pattern; content:"|09 a4 b9|"; distance:1; within:3; content:"|e6 55 6f |"; distance:1; within:3; reference:md5,3bc9680077b50ad074e607b3ba700edc; reference:url,twitter.com/StopMalvertisin/status/1549826315884572672; classtype:command-and-control; sid:2037801; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_21, deployment Perimeter, malware_family AveMariaRAT, confidence High, signature_severity Major, updated_at 2022_07_21, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1573, mitre_technique_name Encrypted_Channel;)