ET MALWARE SuperSocialat Plugin Backdoor Code Execution Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/wp-content"; startswith;
content:"/plugins/super-socialat/super_socialat.php?dl="; fast_pattern;
pcre:"/^(?:[A-Z0-9+/]{4})*(?:[A-Z0-9+/]{2}==|[A-Z0-9+/]{3}=|[A-Z0-9+/]{4})$/Ri";
Raw source ET MALWARE SuperSocialat Plugin Backdoor Code Execution Attempt · Suricata
Esc
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 -> $HOME_NET any (
    msg:"ET MALWARE SuperSocialat Plugin Backdoor Code Execution Attempt";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/wp-content"; startswith;
    content:"/plugins/super-socialat/super_socialat.php?dl="; fast_pattern;
    pcre:"/^(?:[A-Z0-9+/]{4})*(?:[A-Z0-9+/]{2}==|[A-Z0-9+/]{3}=|[A-Z0-9+/]{4})$/Ri";
    classtype:command-and-control;
    sid:2028992; rev:1;
    metadata:affected_product Wordpress_Plugins, created_at 2019_11_18, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_11_18;
)

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