ET MALWARE CopperStealer - Remote Desktop - CnC Server Response via Pastebin


Query · suricata

flow:established,to_client;
http.response_body;
content:"data|2d|sourceurl|3d 22|https|3a 2f 2f|pastebin|2e|com|2f|raw|2f|";
content:"|0a 20 20 3c|pre|3e 40 40|"; distance:0; fast_pattern;
content:"|7e 7e 40 40 3c 2f|pre|3e 0a 20 20|"; within:200;
Raw source ET MALWARE CopperStealer - Remote Desktop - CnC Server Response via Pastebin · 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 CopperStealer - Remote Desktop - CnC Server Response via Pastebin";
    flow:established,to_client;
    http.response_body;
    content:"data|2d|sourceurl|3d 22|https|3a 2f 2f|pastebin|2e|com|2f|raw|2f|";
    content:"|0a 20 20 3c|pre|3e 40 40|"; distance:0; fast_pattern;
    content:"|7e 7e 40 40 3c 2f|pre|3e 0a 20 20|"; within:200;
    reference:md5,cb39d19f07ea387b1f1dcd22f889545b;
    reference:md5,04bc575585d4663f227cef14a65bea26;
    reference:url,www.trendmicro.com/en_us/research/22/f/websites-hosting-fake-cracks-spread-updated-copperstealer.html;
    classtype:command-and-control;
    sid:2037029; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_06_17, deployment Perimeter, malware_family CopperStealer, confidence Medium, signature_severity Major, tag c2, updated_at 2022_06_17, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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