ET INFO AutoIt User-Agent Downloading ZIP

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".zip"; nocase; endswith;
http.user_agent;
content:"AutoIt"; depth:6; endswith; fast_pattern;
http.header_names;
content:!"Referer";
Raw source ET INFO AutoIt User-Agent Downloading ZIP · 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 INFO AutoIt User-Agent Downloading ZIP";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".zip"; nocase; endswith;
    http.user_agent;
    content:"AutoIt"; depth:6; endswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    classtype:misc-activity;
    sid:2027360; rev:5;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_05_17, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_20;
)

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