alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS H3C sys_dia_data_check file_name Parameter Directory Traversal Attempt"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/webui/|3f|g|3d|sys_dia_data_check"; fast_pattern; startswith; content:"file_name|3d|"; pcre:"/^[^\x26]*?(?:(?:\x2e|%2[Ee]){1,2}(?:\x2f|\x5c|%5[Cc]|%2[Ff]){1,}){2,}/R"; reference:url,github.com/PeiQi0/PeiQi-WIKI-Book/tree/main/docs/wiki/iot; classtype:attempted-admin; sid:2063282; rev:1; metadata:affected_product H3C, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_07_03, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2025_07_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)