ET MALWARE ErbiumStealer Response From CnC


Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.response_body;
content:"|7b 22|k|22 3a 22|"; startswith;
content:"|22|rer_module|22 3a 22|";
content:"|22|rer_direct_link|22 3a 22|";
content:"|22|fem_module|22 3a 22|";
content:"|22|fem_header|22 3a 22|";
content:"|22|fem_body|22 3a 22|";
content:"|22|fg_module|22 3a 22|";
content:"|22|fg_dirs|22 3a 22|";
content:"|22|fg_ext|22 3a 22|";
content:"|22|self_kill|22 3a 22|";
content:"|22|mozilla_modules|22 3a 22|";
content:"|22|anti_vm_score|22 3a 22|"; fast_pattern;
Raw source ET MALWARE ErbiumStealer Response From CnC · 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 ErbiumStealer Response From CnC";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.response_body;
    content:"|7b 22|k|22 3a 22|"; startswith;
    content:"|22|rer_module|22 3a 22|";
    content:"|22|rer_direct_link|22 3a 22|";
    content:"|22|fem_module|22 3a 22|";
    content:"|22|fem_header|22 3a 22|";
    content:"|22|fem_body|22 3a 22|";
    content:"|22|fg_module|22 3a 22|";
    content:"|22|fg_dirs|22 3a 22|";
    content:"|22|fg_ext|22 3a 22|";
    content:"|22|self_kill|22 3a 22|";
    content:"|22|mozilla_modules|22 3a 22|";
    content:"|22|anti_vm_score|22 3a 22|"; fast_pattern;
    reference:md5,6b74547f37e8c088ffa81dab867b241e;
    classtype:trojan-activity;
    sid:2038746; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_06, deployment Perimeter, malware_family Erbium, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_06;
)

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