Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE PS/SunCrypt Ransomware CnC Activity"; flow:established,to_server; urilen:1; http.method; content:"POST"; http.uri; content:!"."; http.request_body; content:"|19 10 03 41 24 29 70 24|"; depth:8; fast_pattern; http.header_names; content:!"Referer"; content:!"Accept"; reference:md5,c171bcd34151cbcd48edbce13796e0ed; classtype:command-and-control; sid:2030907; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_09_24, deployment Perimeter, malware_family SunCrypt, confidence Medium, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_24, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)