alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Possible Successful Phish to .tk domain Aug 26 2016"; flow:to_server,established; flowbits:isset,ET.genericphish; http.method; content:"POST"; http.host; content:".tk"; endswith; fast_pattern; classtype:credential-theft; sid:2023137; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_08_26, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_09_14, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)