Rule History

SID: 2033431 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 4 • Jul 26, 2021, 12:00 PM

Message:

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

Rule:

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET HUNTING NOP Sled in HTTP URI Inbound - Possible Exploit Activity"; flow:established,to_server; http.uri.raw; content:"|90 90 90 90|"; fast_pattern; classtype:bad-unknown; sid:2033431; rev:4; metadata:created_at 2021_07_26, confidence Medium, signature_severity Minor, tag possible_exploitation, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_29;)

Created:

Jul 26, 2021, 12:00 PM

Updated:

Aug 29, 2022, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 9, 2025, 9:34 PM

Filename:

rules/emerging-hunting.rules