alert http $EXTERNAL_NET any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SPECIFIC_APPS Mailtrail v0.53 Command Injection Attempt"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/login"; http.request_body; content:"username|3d 3b 60|"; startswith; fast_pattern; content:"|60|"; distance:0; reference:url,www.exploit-db.com/exploits/51676; classtype:attempted-admin; sid:2047673; rev:2; metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2023_08_18, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_01_26, reviewed_at 2024_10_01, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1210, mitre_technique_name Exploitation_Of_Remote_Services; target:dest_ip;)