alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING Canada Revenue Agency Phishing Landing 2016-01-25"; flow:to_client,established; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"DEBUT DE L|27|EN-TETE"; nocase; fast_pattern; content:"DU GABARIT NSI"; nocase; distance:0; content:"<title>Get Tax Refund"; nocase; distance:0; content:"Canada Revenue Agency"; nocase; distance:0; classtype:social-engineering; sid:2031965; rev:4; metadata:attack_target Client_Endpoint, created_at 2016_01_25, deployment Perimeter, confidence Medium, signature_severity Major, tag Phishing, updated_at 2020_06_17;)