alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET PHISHING Webmail Account Upgrade Phishing Landing 2016-07-20";
flow:from_server,established;
http.stat_code;
content:"200";
http.content_type;
content:"text/html"; startswith;
file.data;
content:"<title>|3a 3a|WEBMAIL"; nocase; fast_pattern;
content:"Sign in to Update Your Account"; nocase; distance:0;
content:"Email"; nocase; distance:0;
content:"Password"; nocase; distance:0;
content:"Webmail Admin"; nocase; distance:0;
classtype:social-engineering;
sid:2032031; rev:3;
metadata:attack_target Client_Endpoint, created_at 2016_07_21, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Phishing, updated_at 2020_07_20;
)