alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Possible Successful Generic Windows.net Hosted Phish 2020-10-14"; flow:established,to_server; flowbits:isset,ET.genericphish; http.method; content:"POST"; http.host; content:".windows.net"; isdataat:!1,relative; fast_pattern; http.uri; content:!"/getEffectiveAccess?api-version="; classtype:credential-theft; sid:2031012; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_10_14, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2020_11_30, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)