alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
msg:"ET WEB_SPECIFIC_APPS MAXcms fm_includes_special Parameter Remote File Inclusion Attempt";
flow:to_server,established;
http.method;
content:"GET";
http.uri;
content:"/includes/file_manager/special.php?"; nocase;
content:"fm_includes_special="; nocase;
pcre:"/fm_includes_special=\s*(?:ftps?|https?|php)\:\//i";
reference:url,inj3ct0r.com/exploits/5609;
reference:url,vupen.com/english/advisories/2009/2136;
classtype:web-application-attack;
sid:2011384; rev:5;
metadata:created_at 2010_09_28, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)