alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Moltbook skill.md request"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/skill.md"; nocase; fast_pattern; http.host; content:"moltbook.com"; reference:url,simonwillison.net/2026/Jan/30/moltbook/; classtype:trojan-activity; sid:2067250; rev:1; metadata:affected_product Any, attack_target Client_and_Server, tls_state TLSDecrypt, created_at 2026_02_02, deployment Perimeter, deployment Internal, 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;)