ET MALWARE TA450 GRAMDOOR Telegram CnC Activity (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.host;
content:"api.telegram.org"; bsize:16;
http.uri;
content:"/bot2003026094:AAGoitvpcx3SFZ2_6YzIs4La_kyDF1PbXrY/sendMessage?"; fast_pattern; startswith;
Raw source ET MALWARE TA450 GRAMDOOR Telegram CnC Activity (POST) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE TA450 GRAMDOOR Telegram CnC Activity (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.host;
    content:"api.telegram.org"; bsize:16;
    http.uri;
    content:"/bot2003026094:AAGoitvpcx3SFZ2_6YzIs4La_kyDF1PbXrY/sendMessage?"; fast_pattern; startswith;
    reference:url,www.mandiant.com/resources/telegram-malware-iranian-espionage;
    classtype:trojan-activity;
    sid:2035409; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_03_08, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_08;
)

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