ET MALWARE Lunar Builder Exfil Response

Query · suricata

flow:established,to_client;
http.content_type;
content:"application/json"; bsize:16;
file.data;
content:"|22|title|22 3a 20 22|Lunar|20|Builder|22|"; fast_pattern;
content:"|22|name|22 3a 20 22|Stolen|20|From|22 2c|"; distance:0;
Raw source ET MALWARE Lunar Builder Exfil Response · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Lunar Builder Exfil Response";
    flow:established,to_client;
    http.content_type;
    content:"application/json"; bsize:16;
    file.data;
    content:"|22|title|22 3a 20 22|Lunar|20|Builder|22|"; fast_pattern;
    content:"|22|name|22 3a 20 22|Stolen|20|From|22 2c|"; distance:0;
    reference:md5,19917b254644d1039dd31d0a488ddeeb;
    classtype:command-and-control;
    sid:2033449; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_07_27, deployment Perimeter, deployment SSLDecrypt, malware_family Lunar_Builder, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_27;
)

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