alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Magician/M461c14n Ransomware CnC Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/setup?c="; fast_pattern; content:"&u="; distance:0; content:"&p="; distance:0; http.protocol; content:"1.0"; http.header_names; content:"|0d 0a|Host|0d 0a 0d 0a|"; bsize:10; reference:md5,4839223e68ed38639186038f9b07ef67; classtype:command-and-control; sid:2029237; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_08, deployment Perimeter, malware_family Ransomware, malware_family Magician, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_01_08, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)