ET RETIRED QwixxRAT - Telegram CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/bot"; startswith;
content:"/sendMessage?chat_id="; distance:0;
content:"text|3d e2 98 a0 20|Qwixx|20|Steal"; distance:0; fast_pattern;
http.host;
content:"api.telegram.org";
http.header_names;
content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|";
target:src_ip;
Raw source ET RETIRED QwixxRAT - Telegram CnC Checkin · 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 RETIRED QwixxRAT - Telegram CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/bot"; startswith;
    content:"/sendMessage?chat_id="; distance:0;
    content:"text|3d e2 98 a0 20|Qwixx|20|Steal"; distance:0; fast_pattern;
    http.host;
    content:"api.telegram.org";
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|";
    reference:url,www.uptycs.com/blog/remote-access-trojan-qwixx-telegram;
    classtype:trojan-activity;
    sid:2047647; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_08_14, deployment Perimeter, deployment SSLDecrypt, former_category MALWARE, malware_family QwixxStealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_01, reviewed_at 2024_10_01;
    target:src_ip;
)

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