ET MALWARE Cohhoc RAT CnC Request

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"gAAAA"; offset:2; depth:5;
content:"AAAAAAAAAAAAAAMjAx"; distance:1; within:18;
content:"MiR"; distance:4; within:3;
http.header_names;
content:!"Referer";
Raw source ET MALWARE Cohhoc RAT CnC Request · 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 Cohhoc RAT CnC Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"gAAAA"; offset:2; depth:5;
    content:"AAAAAAAAAAAAAAMjAx"; distance:1; within:18;
    content:"MiR"; distance:4; within:3;
    http.header_names;
    content:!"Referer";
    reference:url,public.gdatasoftware.com/Presse/Publikationen/Whitepaper/EN/GDATA_TooHash_CaseStudy_102014_EN_v1.pdf;
    classtype:command-and-control;
    sid:2019625; rev:5;
    metadata:created_at 2014_11_03, signature_severity Major, updated_at 2020_08_18;
)

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