alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Kuluoz.B Shipping Label Spam Campaign"; flow:established,to_server; content:".php?"; http_uri; content:"_info="; distance:1; within:6; http_uri; pcre:"/\.php\?[a-z]_info=[a-z0-9]{1,4}_\d+?$/Ui"; content:!"Referer|3a 20|"; http_header; classtype:trojan-activity; sid:2017002; rev:7; metadata:created_at 2013_06_12, signature_severity Unknown, updated_at 2019_09_09;)