ET ADWARE_PUP Possible FakeAV Binary Download

Query · suricata

flow:established,to_client;
http.header;
content:"filename=|22|"; nocase;
content:"antiv"; fast_pattern; nocase; within:50;
pcre:"/filename\x3D\x22[^\r\n]*antiv[^\n]+\.exe/i";
Raw source ET ADWARE_PUP Possible FakeAV Binary Download · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET ADWARE_PUP Possible FakeAV Binary Download";
    flow:established,to_client;
    http.header;
    content:"filename=|22|"; nocase;
    content:"antiv"; fast_pattern; nocase; within:50;
    pcre:"/filename\x3D\x22[^\r\n]*antiv[^\n]+\.exe/i";
    classtype:pup-activity;
    sid:2012753; rev:8;
    metadata:created_at 2011_04_29, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_31;
)

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