ET INFO Moltbook AI Agent Registration Attempt

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/api/v1/agents/register"; fast_pattern;
http.host;
content:"moltbook.com";
http.content_type;
content:"application/json";
http.request_body;
content:"|22|name|22|";
content:"|22|description|22|";
target:src_ip;
Raw source ET INFO Moltbook AI Agent Registration 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET INFO Moltbook AI Agent Registration Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/v1/agents/register"; fast_pattern;
    http.host;
    content:"moltbook.com";
    http.content_type;
    content:"application/json";
    http.request_body;
    content:"|22|name|22|";
    content:"|22|description|22|";
    reference:url,simonwillison.net/2026/Jan/30/moltbook/;
    classtype:trojan-activity;
    sid:2067249; rev:1;
    metadata:affected_product Any, attack_target Client_and_Server, tls_state TLSDecrypt, created_at 2026_02_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2026_02_02, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1102, mitre_technique_name Web_Service;
    target:src_ip;
)

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