alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
msg:"ET WEB_SPECIFIC_APPS FormMailer formmailer.admin.inc.php BASE_DIR Parameter Remote File Inclusion Attempt";
flow:to_server,established;
http.method;
content:"GET";
http.uri;
content:"/modules/formmailer/formmailer.admin.inc.php?"; nocase;
content:"BASE_DIR[jax_formmailer]="; nocase;
pcre:"/BASE_DIR\[jax_formmailer\]\s*=\s*(https?|ftps?|php)\:\//i";
reference:url,osvdb.org/show/osvdb/55751;
classtype:web-application-attack;
sid:2010484; rev:6;
metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_11, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)