alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Jackpot Ransomware CnC Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php?HWInfo="; nocase; content:"}&Time="; nocase; distance:0; http.user_agent; content:"My Session"; fast_pattern; startswith; http.request_body; content:"|2e 00 70 00 68 00 70 00 3f 00 48 00 57 00 49 00 6e 00 66 00 6f 00 3d|"; http.header_names; content:!"Referer|0d 0a|"; reference:md5,5624c920b1fd3da3a451d564bb7488d3; classtype:command-and-control; sid:2023465; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_10_27, deployment Perimeter, malware_family Ransomware, malware_family Jackpot, confidence High, signature_severity Major, tag Ransomware, updated_at 2020_08_03, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)