alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Retdoor CnC Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:10; content:"/api/infos"; http.request_body; content:"name|3d 5e|"; startswith; fast_pattern; content:"|26|ret|3d|"; endswith; reference:url,www.zscaler.com/blogs/security-research/unveiling-revc2-and-venom-loader; classtype:trojan-activity; sid:2058145; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_12_09, deployment Perimeter, malware_family Retdoor, performance_impact Low, confidence High, signature_severity Major, tag Venom_Spider, tag Golden_Chickens, updated_at 2024_12_09; target:src_ip;)