ET MALWARE Ducktail APT Style Payload Request

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/file/t/"; startswith; fast_pattern;
content:".exe"; endswith;
http.header_names;
content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|"; bsize:22;
http.connection;
content:"Keep-Alive"; bsize:10;
Raw source ET MALWARE Ducktail APT Style Payload Request · 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 Ducktail APT Style Payload Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/file/t/"; startswith; fast_pattern;
    content:".exe"; endswith;
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|"; bsize:22;
    http.connection;
    content:"Keep-Alive"; bsize:10;
    reference:url,twitter.com/suyog41/status/1742462453559222731;
    classtype:trojan-activity;
    sid:2049901; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2024_01_03, deployment Perimeter, malware_family Ducktail, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_01_03;
)

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