alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED FakeAV Checkin"; flow:to_server,established; content:"GET"; http_method; content:"/?affid="; depth:8; http_uri; content:"&promo_type="; http_uri; content:"&promo_opt="; http_uri; pcre:"/^\/\?affid=\d+&promo_type=\d+&promo_opt=\d+$/U"; reference:md5,527e115876d0892c9a0ddfc96e852a16; classtype:trojan-activity; sid:2016075; rev:3; metadata:created_at 2012_12_21, signature_severity Unknown, updated_at 2019_07_26;)