ET RETIRED abubasbanditbot CnC Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET RETIRED abubasbanditbot CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/bot"; startswith;
    content:"/sendMessage"; endswith;
    http.header;
    content:"host|3a 20|api.telegram.org";
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    content:!"|0d 0a|User-Agent|0d 0a|";
    content:"|0d 0a|content-type|0d 0a|accept|0d 0a|host|0d 0a|content-length|0d 0a 0d 0a|";
    http.request_body;
    content:"chat_id"; startswith;
    content:"&text|3d 25 44 30 25 39 34 25 44 30 25 42 42 25 44 31 25 38 46 2b 25 44 30 25 42 32 25 44 30 25 42 30 25 44 31 25 38 31 2b 25 44 31 25 38 32 25 44 31 25 38 30 25 44 31 25 38 33 25 44 30 25 42 34 25 44 30 25 42 38 25 44 31 25 38 32 25 44 31 25 38 31 25 44 31 25 38 46 2b 25 44 30 25 39 46 25 44 30 25 39 41 25 33 41 2b 25 32 33|"; fast_pattern; distance:0;
    pcre:"/^[A-F0-9]{8}-(?:[A-F0-9]{4}-){3}[A-F0-9]{12}$/R";
    reference:md5,9bd1cc9b027a4420d6e4f780c50af93c;
    classtype:trojan-activity;
    sid:2047015; rev:2;
    metadata:created_at 2023_08_01, deployment Perimeter, deployment SSLDecrypt, former_category MALWARE, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_10_01, reviewed_at 2024_10_01;
    target:src_ip;
)