ET MALWARE KWN Clipper Checkin via Telegram

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE KWN Clipper Checkin via Telegram";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/bot"; startswith;
    content:"/sendMessage"; endswith;
    http.host; bsize:16;
    content:"api.telegram.org";
    http.content_type; bsize:33;
    content:"application/x-www-form-urlencoded";
    http.user_agent;
    content:"Go-http-client/"; startswith;
    http.request_body;
    content:"&text=FROM+UID+%3A+%0D%0A";
    content:"%0D%0A+Victim+By+KWN++%0D%0ANEW+USER"; distance:0; fast_pattern;
    reference:url,twitter.com/suyog41/status/1645694318756220928;
    reference:md5,14485f6b7327d25d8a255b9feca41e7b;
    classtype:trojan-activity;
    sid:2044916; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_04_11, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_11;
    target:src_ip;
)