alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Snatch Ransomware Checkin (POST)"; flow:established,to_server; http.request_line; content:"POST /news HTTP/1.1"; fast_pattern; http.request_body; content:"|22|pid|22 3a|"; content:"|22|host|22 3a|"; distance:0; content:"|22|type|22 3a|"; distance:0; content:"|22|username|22 3a|"; distance:0; reference:md5,5a9ae5f51c41f2de4f3eca94ddb4ccfd; classtype:trojan-activity; sid:2035898; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_04_12, deployment Perimeter, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_12, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)