ET WEB_SERVER Possible SSRF Attempt Inbound Using Common Dork M7

Query · suricata

flow:to_server,established;
http.uri;
content:"?window="; fast_pattern;
pcre:"/^(?:\w{2,6}://|\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/R";
Raw source ET WEB_SERVER Possible SSRF Attempt Inbound Using Common Dork M7 · 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 -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET WEB_SERVER Possible SSRF Attempt Inbound Using Common Dork M7";
    flow:to_server,established;
    http.uri;
    content:"?window="; fast_pattern;
    pcre:"/^(?:\w{2,6}://|\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/R";
    classtype:misc-activity;
    sid:2036434; rev:1;
    metadata:attack_target Web_Server, created_at 2022_05_02, deployment Perimeter, deployment Internal, deprecation_reason Performance, performance_impact Moderate, confidence Medium, signature_severity Informational, updated_at 2022_05_02;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.