alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Blackmoon/Banbra Configuration Request"; flow:to_server,established; http.method; content:"GET"; http.uri; content:"/fcg-bin/cgi_get_portrait.fcg?uins="; depth:35; http.header; content:"Accept|3a 20|*/*|0d 0d 0a|User-Agent"; fast_pattern; http.host; content:".qq.com"; endswith; reference:url,blog.fortinet.com/post/over-100-000-south-korean-users-affected-by-blackmoon-campaign; reference:md5,bbcbd3dc203829c9cdbf7d1b057f0e79; classtype:trojan-activity; sid:2022759; rev:3; metadata:created_at 2016_04_25, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_07_07;)