Rule History

SID: 2057746 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 1 • Nov 20, 2024, 12:00 PM

Message:

ET INFO Observed Cloudflare Page Developer Domain (pages .dev in TLS SNI)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Cloudflare Page Developer Domain (pages .dev in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".pages.dev"; endswith; fast_pattern; threshold:type limit, count 1, seconds 300, track by_src; classtype:misc-activity; sid:2057746; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_11_20, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_20;)

Created:

Nov 20, 2024, 12:00 PM

Updated:

Nov 20, 2024, 12:00 PM

DB Created:

Dec 3, 2024, 4:00 PM

DB Updated:

Jul 7, 2025, 9:34 PM

Filename:

rules/emerging-info.rules