alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET PHISHING Successful Outlook Web App Phish 2015-10-15";
flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:".php?";
http.request_body;
content:"app=o365&"; nocase; depth:9; fast_pattern;
content:"&name="; nocase; distance:0;
content:"&password="; nocase; distance:0;
classtype:credential-theft;
sid:2031731; rev:3;
metadata:attack_target Client_Endpoint, created_at 2015_10_14, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_06_04, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)