alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET PHISHING Successful Email System Manager Phish 2016-04-13";
flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"userid="; nocase; depth:7; fast_pattern;
content:"&Pass"; nocase; distance:0;
content:"save=Download"; nocase; distance:0;
classtype:credential-theft;
sid:2032432; rev:5;
metadata:attack_target Client_Endpoint, created_at 2016_04_13, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_09_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)