alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS UTT formReConnect Isp_Name Parameter Command Injection Attempt (CVE-2026-2847)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:21; content:"/goform/formReConnect"; fast_pattern; http.request_body; content:"Isp_Name|3d|"; pcre:"/^[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R"; reference:url,github.com/cha0yang1/UTT520CVE/blob/main/UTTRCE2.md; reference:cve,2026-2847; classtype:attempted-admin; sid:2067911; rev:1; metadata:affected_product UTT, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_02_24, cve CVE_2026_2847, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_02_24, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)