ET MALWARE Cobalt Strike Malleable C2 Profile wordpress_ Cookie Test


Query · suricata

flow:established,to_server;
http.cookie;
content:"wordpress"; fast_pattern;
pcre:"/^_?=?(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/";
http.header_names;
content:!"Referer";
Raw source ET MALWARE Cobalt Strike Malleable C2 Profile wordpress_ Cookie Test · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged.
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Cobalt Strike Malleable C2 Profile wordpress_ Cookie Test";
    flow:established,to_server;
    http.cookie;
    content:"wordpress"; fast_pattern;
    pcre:"/^_?=?(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/";
    http.header_names;
    content:!"Referer";
    reference:url,thedfirreport.com/2021/06/20/from-word-to-lateral-movement-in-1-hour/;
    classtype:trojan-activity;
    sid:2033158; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2021_06_22, deployment Perimeter, malware_family Cobalt_Strike, performance_impact Moderate, confidence Medium, signature_severity Major, updated_at 2024_04_25, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;
)

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