alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Win32/RisePro CnC Server Response M3"; flow:to_client,established; http.stat_code; content:"200"; http.response_body; content:"918_tok"; startswith; bsize:7; fast_pattern; reference:url,flashpoint.io/blog/risepro-stealer-and-pay-per-install-malware-privateloader; classtype:command-and-control; sid:2043090; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_12_28, deployment Perimeter, deployment SSLDecrypt, malware_family Win32_RisePro, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_28, reviewed_at 2025_10_24;)