alert tcp $HOME_NET any -> $EXTERNAL_NET 1074 (msg:"ET MALWARE [ANY.RUN] Socks5Systemz TCP Backconnect Client Traffic"; flow:established,to_server; stream_size:server,=,1; stream_size:client,=,12; dsize:10; content:"|c0 a8 64|"; depth:3; reference:md5,1eef6f11bc52c68880c0fa35f8318923; reference:url,app.any.run/tasks/685b5fb6-1b1a-4f4d-92f5-8a9593275a92; classtype:trojan-activity; sid:2049397; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_29, deployment Perimeter, malware_family Socks5Systemz, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_29;)