alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Prg Trojan HTTP POST version 2"; flow:established,to_server; content:"POST"; nocase; http_method; content:".php?1="; http_uri; content:"&i="; http_uri; pcre:"/\.php\?1=[a-z0-9]+_[a-z0-9_]+&i=/Ui"; reference:url,www.securescience.net/FILES/securescience/10378/pubMalwareCaseStudy.pdf; classtype:trojan-activity; sid:2007724; rev:12; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2019_07_26;)