ET CURRENT_EVENTS [Fireeye] Backdoor.DNS.BEACON.[CSBundle DNS]

Query · suricata

content:"|00 01 00 01|"; offset:4; depth:4;
content:"|03|"; within:15;
content:"|0a|_domainkey"; distance:3; within:11;
content:"|00 00 10 00 01 c0 0c 00 10 00 01 00 00 00 02 01 00 ff|v=DKIM1\; p="; fast_pattern;
Raw source ET CURRENT_EVENTS [Fireeye] Backdoor.DNS.BEACON.[CSBundle DNS] · 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 dns any any -> any any (
    msg:"ET CURRENT_EVENTS [Fireeye] Backdoor.DNS.BEACON.[CSBundle DNS]";
    content:"|00 01 00 01|"; offset:4; depth:4;
    content:"|03|"; within:15;
    content:"|0a|_domainkey"; distance:3; within:11;
    content:"|00 00 10 00 01 c0 0c 00 10 00 01 00 00 00 02 01 00 ff|v=DKIM1\; p="; fast_pattern;
    reference:url,github.com/fireeye/red_team_tool_countermeasures;
    classtype:trojan-activity;
    sid:2031265; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_08, deployment Perimeter, confidence High, signature_severity Major, tag c2, updated_at 2020_12_09, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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