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;)