ET ADWARE_PUP Windows Explorer Tab Add-on Post Install Checkin

Query · suricata

flow:established,to_server;
http.request_line;
content:"POST /api HTTP/1.1"; bsize:18;
http.request_body;
content:"f=100&p=ew0KICAgIk0iOi"; startswith; fast_pattern;
Raw source ET ADWARE_PUP Windows Explorer Tab Add-on Post Install Checkin · 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 ADWARE_PUP Windows Explorer Tab Add-on Post Install Checkin";
    flow:established,to_server;
    http.request_line;
    content:"POST /api HTTP/1.1"; bsize:18;
    http.request_body;
    content:"f=100&p=ew0KICAgIk0iOi"; startswith; fast_pattern;
    reference:md5,47d9aee3497bed660b640194dbab5879;
    classtype:pup-activity;
    sid:2031386; rev:2;
    metadata:created_at 2020_12_15, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_15;
)

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