ET MALWARE Gamaredon/Armageddon CnC Activity (Sending Windows System Information)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"_540AD80E/walt.html"; endswith; fast_pattern;
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
Raw source ET MALWARE Gamaredon/Armageddon CnC Activity (Sending Windows System Information) · 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 Gamaredon/Armageddon CnC Activity (Sending Windows System Information)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"_540AD80E/walt.html"; endswith; fast_pattern;
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    reference:url,ssu.gov.ua/uploads/files/DKIB/Technical%20report%20Armagedon.pdf;
    classtype:trojan-activity;
    sid:2034352; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_11_05, deployment Perimeter, malware_family Gamaredon, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_05;
)

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