alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Array VPN fshare_template Arbitrary File Read"; flow:established,to_server; http.header; content:"x_an_fileshare|3a 20|"; nocase; content:"fshare_template|3d|"; fast_pattern; distance:0; pcre:"/^[^\x20\x0d\x0a]*?(?:(?:\x2e|%+(?:25)?2[Ee]|%+(?:25)?32%+(?:25)?[46]5){1,2}(?:\x2f|\x5c|%+(?:25)?(?:25)?5[Cc]|%+(?:25)?2[Ff]){1,}){2,}/R"; reference:url,github.com/MD-SEC/MDPOCS/blob/main/Array_VPN_FileRead_Poc.py; classtype:web-application-attack; sid:2069097; rev:1; metadata:attack_target Server, tls_state TLSDecrypt, created_at 2026_05_01, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_05_01, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)