alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Possible Office 365 Phishing Landing 2016-08-24"; flow:established,from_server; threshold:type limit, track by_src, count 1, seconds 30; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"<meta name=|22|SiteID|22 20|content=|22 22|"; nocase; content:"<meta name=|22|ReqLC|22 20|content=|22|1033|22|"; fast_pattern; nocase; distance:0; content:"<meta name=|22|LocLC|22 20|content="; nocase; distance:0; content:"microsoftonline-p.com"; nocase; distance:0; content:"id=|22|credentials|22|"; nocase; distance:0; content:!"action=|22|/common/login|22|"; nocase; within:50; classtype:social-engineering; sid:2025673; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_08_24, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_08_19;)