How to Find Virus String in Whole site PHP

How to Find Virus String in Whole site PHP

Sometimes websites hack by virus and unformatted strings inject in to your sites. Here i will show you how to find that unformatted strings/virus in to your site in PHP.

Make a file named search.php and copy below content and paste into search.php then put search.php file into your root directory.

Note : Below coding only use for Linux server users.

<?php
ini_set('max_execution_time', 3600);
ini_set("memory_limit","256M");

$string = $_GET['string'];
if(trim($string) != '')
{
$script = "grep -n -r '$string' ".dirname(__FILE__);

$results = exec($script,$result);
if($results) {
echo "Search Result :";
echo '<pre>';
foreach ($result as $_result) {
echo $_result."<br/>";
}
echo '</pre>';
}
else {
echo "Search Completed, No results found.\n";
}
}
else {
echo "No String Found";
}

?>

Now you will need to execute the script from browser this way: http://yoursite.com/search.php?string=keyword