alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ET WEB_SPECIFIC_APPS PHP PHPNuke Remote File Inclusion Attempt"; flow:established,to_server; content:"/iframe.php"; http_uri; nocase; content:"file="; http_uri; nocase; pcre:"/file=\s*(ftps?|https?|php)\:\//Ui"; reference:url,www.zone-h.org/en/advisories/read/id=8694/; classtype:web-application-attack; sid:2002800; rev:7; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, 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;)