alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET DELETED PHP remote file include exploit attempt"; flow:to_server,established; content:"GET "; nocase; depth:4; content:".php?"; http_uri; nocase; content:"cmd="; http_uri; nocase; pcre:"/=(https?|ftps?|php)\:\/.{0,100}cmd=/Ui"; classtype:attempted-admin; sid:2001810; rev:29; metadata:affected_product Any, attack_target Server, created_at 2010_07_30, deployment Datacenter, signature_severity Major, tag Remote_File_Include, updated_at 2019_08_22, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)