ET MALWARE PlugX Checkin

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.uri;
pcre:"/^\/[A-F0-9]{24}$/";
http.header;
content:"Accept|3a 20 2a 2f 2a 0d 0a|"; depth:13;
pcre:"/^[A-Z]{4}/R";
content:"1|3a 20|0|0d 0a|"; fast_pattern; within:6;
http.header_names;
content:!"Referer";
Raw source ET MALWARE PlugX Checkin · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE PlugX Checkin";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    pcre:"/^\/[A-F0-9]{24}$/";
    http.header;
    content:"Accept|3a 20 2a 2f 2a 0d 0a|"; depth:13;
    pcre:"/^[A-Z]{4}/R";
    content:"1|3a 20|0|0d 0a|"; fast_pattern; within:6;
    http.header_names;
    content:!"Referer";
    reference:url,fireeye.com/blog/technical/cyber-exploits/2013/11/exploit-proliferation-additional-threat-groups-acquire-cve-2013-3906.html;
    reference:md5,17f9f999e1814b99601446f8ce7eb816;
    classtype:command-and-control;
    sid:2017714; rev:8;
    metadata:created_at 2013_11_14, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_10;
)

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