ET MALWARE Possible Malicious Macro DL BIN May 2016 (No UA)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/system/"; depth:8; nocase; fast_pattern;
pcre:"/^(?:cache|logs)\/[^\x2f]+\.(?:exe|dll|doc|bin)$/Ri";
http.header_names;
content:!"Referer";
Raw source ET MALWARE Possible Malicious Macro DL BIN May 2016 (No UA) · Suricata
Esc
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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Possible Malicious Macro DL BIN May 2016 (No UA)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/system/"; depth:8; nocase; fast_pattern;
    pcre:"/^(?:cache|logs)\/[^\x2f]+\.(?:exe|dll|doc|bin)$/Ri";
    http.header_names;
    content:!"Referer";
    reference:md5,c6747ca29d5c28f4349a5a8343d6b025;
    classtype:trojan-activity;
    sid:2022834; rev:6;
    metadata:created_at 2016_05_24, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_17;
)

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