alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET PHISHING Common Form POST - Yahoo Phishing Landing 2020-06-11";
flow:established,to_client;
file.data;
content:"<form action=|22|challenge.php|22 20|id=|22|login-username-form|22 20|method=|22|post|22 20|class=|22|username-challenge|20 22|>";
classtype:social-engineering;
sid:2030290; rev:2;
metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_06_11, deployment Perimeter, confidence Medium, signature_severity Minor, tag Phishing, updated_at 2020_06_11;
)