alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Sendinblue Credential Phish Landing Page 2022-06-28"; flow:established,to_client; http.stat_code; content:"200"; http.header; content:"X-Sib-Server"; file.data; content:"<title>"; pcre:"/(?:outlook|helpdesk|help desk)/Ri"; content:"</title>"; distance:0; content:"name|3d 22|EMAIL|22|"; content:"name|3d 22|LASTNAME|22|"; content:"name|3d 22|FIRSTNAME|22|"; content:"name|3d 22|email|5f|address|5f|check|22 20|value|3d 22 22|"; distance:0; fast_pattern; reference:md5,ba59d193ba95bd5140b8a272a88b79c5; classtype:credential-theft; sid:2037138; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_28, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_03;)