ET MALWARE Possible Generic RAT over Telegram API

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"Microsoft"; nocase;
content:"Windows"; nocase;
content:"Pass"; nocase;
http.header;
content:"|0d 0a|Host|3a 20|api.telegram.org|0d 0a|"; fast_pattern;
Raw source ET MALWARE Possible Generic RAT over Telegram API · Suricata
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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 Possible Generic RAT over Telegram API";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"Microsoft"; nocase;
    content:"Windows"; nocase;
    content:"Pass"; nocase;
    http.header;
    content:"|0d 0a|Host|3a 20|api.telegram.org|0d 0a|"; fast_pattern;
    classtype:command-and-control;
    sid:2029323; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_27, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_27;
)

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