ET MALWARE Win32/PurpleFox Retrieving File (GET)

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET /conf.dat HTTP/1.1"; fast_pattern;
http.user_agent;
content:"Mozilla/4.0|20|(compatible|3b 20|MSIE 6.0|3b 20|Windows|20|NT|20|5.0)"; bsize:50;
http.header_names;
content:!"Referer";
Raw source ET MALWARE Win32/PurpleFox Retrieving File (GET) · 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 1024: (
    msg:"ET MALWARE Win32/PurpleFox Retrieving File (GET)";
    flow:established,to_server;
    http.request_line;
    content:"GET /conf.dat HTTP/1.1"; fast_pattern;
    http.user_agent;
    content:"Mozilla/4.0|20|(compatible|3b 20|MSIE 6.0|3b 20|Windows|20|NT|20|5.0)"; bsize:50;
    http.header_names;
    content:!"Referer";
    reference:md5,57b8bccf9cb8592ae86b4453cf74b4e8;
    classtype:trojan-activity;
    sid:2035385; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_03_03, deployment Perimeter, malware_family PurpleFox, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_03;
)

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