Rule History

SID: 2057440 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Nov 13, 2024, 12:00 PM

Message:

ET HUNTING HTTP Redirect Chain With Image Filetype in URI

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING HTTP Redirect Chain With Image Filetype in URI"; flow:established,to_server; http.method; content:"GET"; http.uri; pcre:"/(?:png|jpg|jpeg)/"; content:"|3f|response|2d|content|2d|type|3d|"; fast_pattern; within:36; content:!"X-Amz-Algorithm="; classtype:misc-activity; sid:2057440; rev:1; metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_11_13, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_13;)

Created:

Nov 13, 2024, 12:00 PM

Updated:

Nov 13, 2024, 12:00 PM

DB Created:

Dec 3, 2024, 4:00 PM

DB Updated:

Jul 15, 2025, 9:34 PM

Filename:

rules/emerging-hunting.rules