alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Xfinity Gateway - Remote Code Execution"; flow:established,to_server; urilen:48; http.method; content:"POST"; http.uri; content:"/actionHandler/ajax_network_diagnostic_tools.php"; fast_pattern; http.request_body; content:"test_connectivity=true&destination_address=www.comcast.net|20 7c 7c 20|"; startswith; reference:url,www.exploit-db.com/exploits/40856; classtype:attempted-admin; sid:2030262; rev:4; metadata:affected_product Linux, attack_target IoT, created_at 2020_06_08, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_13, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)