alert http any any -> any any (msg:"ET INFO Insecure Proxy Discovery via AWS Instance Metadata Retrieval M2"; flow:established,to_server; http.uri; content:"/proxy/"; startswith; content:"/latest/dynamic/instance-identity/document"; fast_pattern; endswith; reference:url,isc.sans.edu/diary/rss/32800; classtype:trojan-activity; sid:2068313; rev:1; metadata:affected_product Any, attack_target Web_Server, created_at 2026_03_17, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Informational, tag Scanning, updated_at 2026_03_17, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1046, mitre_technique_name Network_Service_Discovery; target:dest_ip;)