alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MZRevenge Ransomware CnC"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; endswith; http.user_agent; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; bsize:38; http.request_body; content:"filename|3d 22|TVpS"; fast_pattern; http.content_type; content:"multipart/form-data|3b 20|boundary=--------"; startswith; http.header_names; content:!"Referer|0d 0a|"; reference:url,app.any.run/tasks/e5a3d700-993f-47ab-bde1-e9ed8e9d323e/; classtype:trojan-activity; sid:2029647; rev:3; metadata:attack_target Client_Endpoint, created_at 2020_03_18, deployment Perimeter, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_09, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)