alert http $EXTERNAL_NET any -> any any (msg:"ET EXPLOIT Online Scheduling System 1.0 - Authentication Bypass Attempt"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/Online%20Scheduling%20System/login.php"; fast_pattern; http.request_body; content:"username="; depth:9; nocase; content:"&password="; nocase; distance:0; content:"&lgn=Login"; nocase; endswith; reference:url,www.exploit-db.com/exploits/48409; classtype:attempted-admin; sid:2030094; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2020_05_04, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_24, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)