alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Data Submitted to MyFreeSites.com - Possible Phishing"; flow:to_server,established; urilen:12; http.method; content:"POST"; http.uri; content:"/form/Submit"; fast_pattern; http.header; content:"myfreesites.net|0d 0a|"; content:"X-Requested-With|3a 20|XMLHttpRequest|0d 0a|"; http.request_body; content:"{|22|siteID|22 3a|"; depth:10; http.accept; content:"application/json, text/javascript"; startswith; http.content_type; content:"application/json"; startswith; classtype:trojan-activity; sid:2032025; rev:3; metadata:attack_target Client_Endpoint, created_at 2016_06_28, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_07_15, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)