ET MALWARE UNK_ConsoleCollie Go Backdoor CnC Checkin

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;
)