alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET POLICY Observed KnowBe4/Popcorn Training Simulated Phish Landing Page M2";
flow:established,to_client;
file.data;
content:"|3c|meta|20|name|3d 22|IMPORTANT|22 20|content|3d 22|This|20|page|20|is|20|part|20|of|20|a|20|simulated|20|phishing|20|attack|20|initiated|20|by|20|KnowBe4";
threshold:type limit, track by_dst, count 1, seconds 120;
classtype:credential-theft;
sid:2031517; rev:3;
metadata:attack_target Client_Endpoint, created_at 2021_01_12, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_23;
)