ET ADWARE_PUP Win32/TrojanDownloader Variant Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?p=";
content:"&t="; within:10;
content:"&title="; within:20;
http.user_agent;
content:"Inno Setup"; startswith; fast_pattern;
http.header_names;
content:!"Referer";
target:src_ip;
Raw source ET ADWARE_PUP Win32/TrojanDownloader Variant Activity (GET) · 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 ADWARE_PUP Win32/TrojanDownloader Variant Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?p=";
    content:"&t="; within:10;
    content:"&title="; within:20;
    http.user_agent;
    content:"Inno Setup"; startswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    reference:md5,3c4563bae9514a3d01298dc223e96d3d;
    classtype:pup-activity;
    sid:2047660; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2023_08_16, deployment Perimeter, performance_impact Moderate, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_18, reviewed_at 2024_04_01;
    target:src_ip;
)

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