alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful Microsoft Credential Phish 2022-05-26"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"source=dropbox-office&email="; startswith; fast_pattern; content:"&password="; distance:0; reference:md5,5fbed67f70900d85754d690e2760fc1f; classtype:social-engineering; sid:2036701; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_05_26, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2022_05_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)