alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE LolliCrypt Ransomware Sending Data to CnC"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; http.request_body; content:"key="; startswith; fast_pattern; content:"&id="; distance:100; content:"&date="; distance:0; pcre:"/^(?:[A-Za-z0-9%2b%2f]{4})*(?:[A-Za-z0-9%2b%2f]{2}%3d%3d|[A-Za-z0-9%2b%2f]{3}%3d|[A-Za-z0-9%2b%2f]{4})$/Rs"; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:md5,8e23b560b66134dcc4e21c461ed1a399; classtype:trojan-activity; sid:2031160; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_11_02, deployment Perimeter, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_01, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)