ET ADWARE_PUP Fake Adobe Update Request

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/en"; nocase;
content:"/reader/download/?installer=Reader_DC_20"; nocase; within:45;
pcre:"/\d{2}\.0\d{2}\.200\d{2}_English(?:_for)?_Windows/R";
http.host;
content:!"get.adobe.com";
Raw source ET ADWARE_PUP Fake Adobe Update Request · 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 Fake Adobe Update Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/en"; nocase;
    content:"/reader/download/?installer=Reader_DC_20"; nocase; within:45;
    pcre:"/\d{2}\.0\d{2}\.200\d{2}_English(?:_for)?_Windows/R";
    http.host;
    content:!"get.adobe.com";
    classtype:pup-activity;
    sid:2026735; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_12_17, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_31;
)

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