ET INFO Insecure Proxy Discovery via AWS Instance Metadata Retrieval M1

Query · suricata

flow:established,to_server;
http.uri;
content:"/proxy/"; startswith;
content:"/latest/meta-data/iam/security-credentials/"; fast_pattern; endswith;
target:dest_ip;
Raw source ET INFO Insecure Proxy Discovery via AWS Instance Metadata Retrieval M1 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> any any (
    msg:"ET INFO Insecure Proxy Discovery via AWS Instance Metadata Retrieval M1";
    flow:established,to_server;
    http.uri;
    content:"/proxy/"; startswith;
    content:"/latest/meta-data/iam/security-credentials/"; fast_pattern; endswith;
    reference:url,isc.sans.edu/diary/rss/32800;
    classtype:misc-activity;
    sid:2068312; 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;
)

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