Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING IRS Phishing Landing 2016-01-15"; flow:to_client,established; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"GOVERNMENT SYSTEM IS FOR AUTHORIZED"; fast_pattern; content:"Use of this system constitutes"; nocase; distance:0; content:"Internal Revenue Service"; nocase; distance:0; content:"Electronic Filing PIN"; nocase; distance:0; content:"foreignPostalLbl"; nocase; distance:0; classtype:social-engineering; sid:2031958; rev:5; metadata:attack_target Client_Endpoint, created_at 2016_01_15, deployment Perimeter, confidence Medium, signature_severity Major, tag Phishing, updated_at 2020_06_17;)