alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE [PTsecurity] Paradise Ransomware Check-in"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"v1="; depth:3; content:"v2="; distance:0; content:"start_e="; distance:0; content:"end_e="; distance:0; content:"files_count="; distance:0; fast_pattern; content:"key="; distance:0; http.header_names; content:!"Referer"; content:!"Cache"; content:!"Accept"; content:!"User-Agent"; classtype:trojan-activity; sid:2025631; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_06_29, deployment Perimeter, malware_family Paradise, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_24, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)