alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT PHP php2shell Handler-mismatch Session Injection (CVE-2026-109619)"; flow:established,to_server; http.content_type; content:"multipart/form-data|3b|"; http.request_body; content:"name|3d 22|PHP_SESSION_UPLOAD_PROGRESS|22|"; fast_pattern; content:"filename|3d|"; pcre:"/^[\x22\x27][^\x22\x27\x0d\x0a]*?\x7c[OrC]\x3a\d+\x3a/R"; http.method; content:"POST"; reference:url,github.com/php/php-src/security/advisories/GHSA-6wmf-4rv5-p3rp; reference:cve,2026-109619; classtype:misc-attack; sid:2072548; rev:1; metadata:affected_product PHP, attack_target Client_and_Server, tls_state TLSDecrypt, created_at 2026_10_22, cve CVE_2026_109619, deployment Perimeter, deployment Internal, confidence Low, signature_severity Major, updated_at 2026_10_22; target:dest_ip;)