alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful Phishing Attempt via GetGoPhish Phishing Tool"; flow:to_server,established; http.method; content:"POST"; http.header; content:"?rid="; fast_pattern; pcre:"/\?rid=[a-f0-9]{64}\x0d\x0a/i"; http.host; content:!"xerox.com"; endswith; reference:url,getgophish.com; classtype:credential-theft; sid:2022487; rev:5; metadata:attack_target Client_Endpoint, created_at 2016_02_03, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_09_16, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)