ET MALWARE Anchor_DNS stickseed Variant CnC Checkin

Query · suricata

dns.query;
content:"efkezwpdxpsq3l"; startswith; fast_pattern;
pcre:"/\.[dghbcijklmnfqrwxyz23stuopaev4569]{26}\.[a-z0-9_-]{1,50}\.[a-z]{2,8}$/";
Raw source ET MALWARE Anchor_DNS stickseed Variant CnC Checkin · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert dns $HOME_NET any -> any any (
    msg:"ET MALWARE Anchor_DNS stickseed Variant CnC Checkin";
    dns.query;
    content:"efkezwpdxpsq3l"; startswith; fast_pattern;
    pcre:"/\.[dghbcijklmnfqrwxyz23stuopaev4569]{26}\.[a-z0-9_-]{1,50}\.[a-z]{2,8}$/";
    classtype:command-and-control;
    sid:2033420; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2021_07_26, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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