ET MALWARE APT29/Wellness CnC Host Checkin

Query · suricata

flow:established,to_server;
urilen:1;
http.method;
content:"POST";
http.cookie;
content:".+"; fast_pattern;
isdataat:100,relative;
content:".+"; distance:0;
content:".+"; distance:0;
content:"%3a"; nocase;
content:"%2c"; nocase;
http.request_body;
pcre:"/^(?:[a-z0-9:.,]{3,10}\s){50,}[a-z0-9:.,]{3,10}\s*$/i";
Raw source ET MALWARE APT29/Wellness CnC Host 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE APT29/Wellness CnC Host Checkin";
    flow:established,to_server;
    urilen:1;
    http.method;
    content:"POST";
    http.cookie;
    content:".+"; fast_pattern;
    isdataat:100,relative;
    content:".+"; distance:0;
    content:".+"; distance:0;
    content:"%3a"; nocase;
    content:"%2c"; nocase;
    http.request_body;
    pcre:"/^(?:[a-z0-9:.,]{3,10}\s){50,}[a-z0-9:.,]{3,10}\s*$/i";
    reference:md5,98fe909510c79b21e740fec32fb6b1a0;
    reference:url,blogs.jpcert.or.jp/en/2018/07/malware-wellmes-9b78.html;
    classtype:targeted-activity;
    sid:2030846; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_09_08, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_08;
)

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