alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Blackmoon/Banbra Configuration Request M2"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/fcg-bin/cgi_get_portrait.fcg?uins="; startswith; fast_pattern; http.header; content:"keep-alive|0d 0a|User-Agent"; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|accept"; reference:url,blog.fortinet.com/post/over-100-000-south-korean-users-affected-by-blackmoon-campaign; reference:md5,56b8f9428b2171f45dc447fb9fa1b03f; classtype:trojan-activity; sid:2023694; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_01_04, deployment Perimeter, malware_family Banking_Trojan, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_05_02;)