alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-58257 GRR - Database Restoration Arbitrary File Read/Delete via file_name Path Traversal"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"file_name="; fast_pattern; nocase; pcre:"/[?&]file_name=(?:https?|file|php|data)?(?:\x3a|%3a)?(?:\x2f\x2f)?(?:\x2e\x2e(?:\x2f|%2f|\x5c|%5c)|(?:\x2f|%2f)(?:etc|var|root|home|proc|windows|boot|winnt)(?:\x2f|%2f))/i"; classtype:web-application-attack; reference:cve,CVE-2026-58257; reference:url,https://www.exploit.observer/?keyword=CVE-2026-58257&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=grr&match=exact; sid:1090202; rev:1;)