ET MALWARE Gazer HTTP POST Checkin

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:".php?";
pcre:"/^(?:(?:a(?:(?:lbu|d)m|ccount|uthor)|c(?:ont(?:ac|en)|lien)t|p(?:artners|hoto)|(?:memb|us)er|session|video|hash|key|id)=[a-z0-9]{6,12}&){4}/Ri";
http.request_body;
content:"|ff ff ff ff 00 00 00 00|"; depth:8; fast_pattern;
http.header_names;
content:!"Accept|0d 0a|";
content:!"Referer|0d 0a|";
Raw source ET MALWARE Gazer HTTP POST 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 Gazer HTTP POST Checkin";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:".php?";
    pcre:"/^(?:(?:a(?:(?:lbu|d)m|ccount|uthor)|c(?:ont(?:ac|en)|lien)t|p(?:artners|hoto)|(?:memb|us)er|session|video|hash|key|id)=[a-z0-9]{6,12}&){4}/Ri";
    http.request_body;
    content:"|ff ff ff ff 00 00 00 00|"; depth:8; fast_pattern;
    http.header_names;
    content:!"Accept|0d 0a|";
    content:!"Referer|0d 0a|";
    reference:url,www.welivesecurity.com/wp-content/uploads/2017/08/eset-gazer.pdf;
    classtype:command-and-control;
    sid:2024637; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_08_30, deployment Perimeter, confidence Medium, signature_severity Major, updated_at 2020_08_11;
)

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