ET MALWARE BluStealer - SysInfo Exfil via Telegram M2

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE BluStealer - SysInfo Exfil via Telegram M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.host;
    content:"api.telegram.org"; bsize:16;
    http.uri;
    content:"/bot"; startswith;
    content:"/sendMessage"; endswith;
    http.request_body;
    content:"text=Passwords|3a 3a 3a|"; startswith; fast_pattern;
    content:"Username|3a 20|"; distance:0;
    content:"CompName|3a 20|"; distance:0;
    content:"Windows Version|3a 20|"; distance:0;
    content:"&chat_id="; distance:0;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    reference:md5,b95798891c33a49b161c00f869877cd2;
    reference:url,decoded.avast.io/anhho/blustealer/;
    classtype:credential-theft;
    sid:2037261; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_05, deployment Perimeter, deployment SSLDecrypt, malware_family BluStealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_20, reviewed_at 2025_01_22;
)