ET MALWARE Arid Viper APT Exfiltrating files

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"account="; depth:8;
content:"&name=";
content:"&folder="; fast_pattern;
content:"&fname=";
content:"&s=";
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET MALWARE Arid Viper APT Exfiltrating files · 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 MALWARE Arid Viper APT Exfiltrating files";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"account="; depth:8;
    content:"&name=";
    content:"&folder="; fast_pattern;
    content:"&fname=";
    content:"&s=";
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,trendmicro.com/cloud-content/us/pdfs/security-intelligence/white-papers/wp-operation-arid-viper.pdf;
    classtype:targeted-activity;
    sid:2020435; rev:4;
    metadata:created_at 2015_02_17, signature_severity Major, updated_at 2020_09_29;
)

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