alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win64/Agent.qwiakk CnC Checkin"; flow:established,to_server; http.request_line; content:"POST|20|/upload|20|"; startswith; http.content_type; content:"multipart/form-data|3b 20|boundary="; startswith; http.request_body; content:"|2e|yaml|22|"; content:"userName|3a 20|"; content:"userDir|3a 20|"; content:"memSize|3a 20|"; content:"processlist|3a 0a 20|"; fast_pattern; reference:md5,c2e7680c73e6bfdc773a1c3a4895d04f; classtype:trojan-activity; sid:2037760; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_13, deployment Perimeter, malware_family Win64_Agent_qwiakk, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_07_13;)