alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET PHISHING Mailbox Upgrade Phishing Landing 2016-06-27";
flow:to_client,established;
http.stat_code;
content:"200";
http.content_type;
content:"text/html"; startswith;
file.data;
content:"<title>Signin Template"; nocase; fast_pattern;
content:"Please upgrade your mailbox"; nocase; distance:0;
content:"Password"; nocase; distance:0;
content:"upgrade account"; nocase; distance:0;
classtype:social-engineering;
sid:2032022; rev:3;
metadata:attack_target Client_Endpoint, created_at 2016_06_27, deployment Perimeter, confidence Medium, signature_severity Major, tag Phishing, updated_at 2020_07_15;
)