ET ADWARE_PUP Fake Adobe Update Download

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.header;
content:"filename=readerdc"; fast_pattern; nocase;
pcre:"/(_[a-z]{2}){1,3}_[a-z]{3}_install\.exe/Ri";
content:!"Server|3a 20 20|Apache";
content:"Set-Cookie|3a 20|session=";
Raw source ET ADWARE_PUP Fake Adobe Update Download · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET ADWARE_PUP Fake Adobe Update Download";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.header;
    content:"filename=readerdc"; fast_pattern; nocase;
    pcre:"/(_[a-z]{2}){1,3}_[a-z]{3}_install\.exe/Ri";
    content:!"Server|3a 20 20|Apache";
    content:"Set-Cookie|3a 20|session=";
    classtype:pup-activity;
    sid:2026734; 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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