ET MALWARE Suspected APT15/NICKEL KETRUM CnC Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".aspx?id=";
http.accept;
content:"text/html,text/xml,application/xhtml+xml,application/xml|3b|q=0.9,*/*|3b|q=0.8"; fast_pattern;
content:"*/*"; distance:0;
http.accept_lang;
content:"q=0.8,en|3b|q=0.7";
http.header;
content:!"Referer";
content:!"User-Agent";
Raw source ET MALWARE Suspected APT15/NICKEL KETRUM CnC Activity (GET) · 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 Suspected APT15/NICKEL KETRUM CnC Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".aspx?id=";
    http.accept;
    content:"text/html,text/xml,application/xhtml+xml,application/xml|3b|q=0.9,*/*|3b|q=0.8"; fast_pattern;
    content:"*/*"; distance:0;
    http.accept_lang;
    content:"q=0.8,en|3b|q=0.7";
    http.header;
    content:!"Referer";
    content:!"User-Agent";
    reference:md5,278ac5d64e21a1ab63ec2c590a803253;
    classtype:command-and-control;
    sid:2030208; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_05_22, deployment Perimeter, malware_family APT15, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_05_22;
)

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