Rule History

SID: 2065886 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Nov 24, 2025, 12:00 PM

Message:

ET HUNTING POST Request to .cfd Domain

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING POST Request to .cfd Domain"; flow:established,to_server; http.method; content:"POST"; http.host; content:".cfd"; endswith; fast_pattern; http.header_names; content:!"|0d 0a|referer|0d 0a|"; nocase; classtype:misc-activity; sid:2065886; rev:1; metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_11_24, deployment Perimeter, deployment SSLDecrypt, performance_impact Significant, confidence Low, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_24; target:src_ip;)

Created:

Nov 24, 2025, 12:00 PM

Updated:

Nov 24, 2025, 12:00 PM

DB Created:

Nov 24, 2025, 10:34 PM

DB Updated:

Nov 25, 2025, 9:34 PM

Filename:

rules/emerging-hunting.rules