alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE UNK_ConsoleCollie Go Backdoor CnC Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; bsize:7; content:"/c7db25"; fast_pattern; http.user_agent; bsize:18; content:"Go-http-client/1."; http.header; content:"Authorization|3a 20|"; pcre:"/^(:[a-f0-9]{6}-){2}[a-f0-9]{6}/R"; reference:md5,9de2806368f77203832f5b4b421af88f; reference:url,ti.qianxin.com/blog/articles/UTG-Q-010-Targeted-Attack-Campaign-Against-the-AI-and-Gaming-Industry-CN/; classtype:trojan-activity; sid:2052833; 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 TLSDecrypt, created_at 2024_05_22, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag UNK_ConsoleCollie, updated_at 2024_05_22; target:src_ip;)