alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET PHISHING Successful UK Tax Phishing M1 2016-02-01";
flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:".php?&sessionid="; fast_pattern;
content:"&securessl="; distance:0;
http.request_body;
content:"form-data|3b 20|name=|22|email|22|";
content:"form-data|3b 20|name=|22|ccexp|22|"; nocase; distance:0;
reference:md5,8a14eb5764c7c9d01b2b64430933036d;
classtype:credential-theft;
sid:2032277; rev:4;
metadata:attack_target Client_Endpoint, created_at 2016_02_01, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_08_12, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;
)