ET HUNTING Redirect via HTTP 300 to URI Shortening Service (rb .gy) with Fragment Identifier

Query · suricata

flow:established,to_client;
http.stat_code;
content:"30"; startswith;
http.location;
content:"http"; startswith;
content:"rb.gy/"; nocase; fast_pattern;
content:"#"; distance:5; within:1;
pcre:"/^https?\x3a\x2f\x2f(?:www\.)?rb.gy\/[a-z0-9]{5}\#/mi";
target:dest_ip;
Raw source ET HUNTING Redirect via HTTP 300 to URI Shortening Service (rb .gy) with Fragment Identifier · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET HUNTING Redirect via HTTP 300 to URI Shortening Service (rb .gy) with Fragment Identifier";
    flow:established,to_client;
    http.stat_code;
    content:"30"; startswith;
    http.location;
    content:"http"; startswith;
    content:"rb.gy/"; nocase; fast_pattern;
    content:"#"; distance:5; within:1;
    pcre:"/^https?\x3a\x2f\x2f(?:www\.)?rb.gy\/[a-z0-9]{5}\#/mi";
    reference:url,medium.com/@thrunter/cyberuptive-identifies-and-disrupts-ferest-smuggler-a-mass-credential-harvesting-campaign-22875c563854;
    classtype:misc-activity;
    sid:2047708; rev:1;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_08_23, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Minor, updated_at 2023_08_23, reviewed_at 2023_08_23;
    target:dest_ip;
)

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