ET HUNTING NOP Sled in HTTP Header Inbound - Possible Exploit Activity

Query · suricata

flow:established,to_server;
http.header;
content:"|90 90 90 90 90 90 90 90 90 90 90|"; fast_pattern;
Raw source ET HUNTING NOP Sled in HTTP Header Inbound - Possible Exploit Activity · 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 HUNTING NOP Sled in HTTP Header Inbound - Possible Exploit Activity";
    flow:established,to_server;
    http.header;
    content:"|90 90 90 90 90 90 90 90 90 90 90|"; fast_pattern;
    classtype:bad-unknown;
    sid:2033430; rev:1;
    metadata:created_at 2021_07_26, confidence Medium, signature_severity Minor, tag possible_exploitation, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_26;
)

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.