Should I delete ss_installhelper.php

Hello —
Is this actually a malicious file in my root directory, and should I delete it?

WORDFENCE MESSAGE:
Filename: ss_installhelper.php
File Type: Not a core, theme, or plugin file from www.ads-software.com.
Details: This file appears to be installed or modified by a hacker to perform malicious activity. If you know about this file you can choose to ignore it to exclude it from future scans. The matched text in this file is: file_fix_directory(dirname(__FILE__

The issue type is: Suspicious:PHP/recursivechmod
Description: May be legitimate file but can be used to put the site in an insecure state

FILE CODE:

<?php

if (file_exists('./Home.html')) {
  rename('./Home.html', './Home.html.bak');
}

file_fix_directory(dirname(__FILE__));

function file_fix_directory($dir, $nomask = array('.', '..')) {
  if (is_dir($dir)) {
     // Try to make each directory world writable.
     if (@chmod($dir, 0755)) {
       echo "<p>Made writable: " . $dir . "</p>";
     }
  }
  if (is_dir($dir) && $handle = opendir($dir)) {
    while (false !== ($file = readdir($handle))) {
      if (!in_array($file, $nomask) && $file[0] != '.') {
        if (is_dir("$dir/$file")) {
          // Recurse into subdirectories
          file_fix_directory("$dir/$file", $nomask);
        }
        else {
          $filename = "$dir/$file";
            // Try to make each file world writable.
            if (@chmod($filename, 0644)) {
              echo "<p>Made writable: " . $filename . "</p>";
            }
        }
      }
    }

    closedir($handle);
  }

}

unlink(__FILE__);

?>