Versions (4)
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Rev: 1 • Jul 26, 2021, 12:00 PMET HUNTING NOP Sled in HTTP Header Inbound - Possible Exploit Activity
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;)
Jul 26, 2021, 12:00 PM
Jul 26, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 9, 2025, 9:34 PM
rules/emerging-hunting.rules