gistfile1.php

<?php
function vb_catch_bitmob_redirect() {
  if ( ! empty( $_GET['bitmob_redirect'] ) ) {
		
		$redirect_post = get_page_by_path( $_GET['bitmob_redirect'], OBJECT, 'post' );
		
		if ( ! empty( $redirect_post ) )
			wp_safe_redirect( get_permalink( $redirect_post->ID ), 301 );
	}
}
add_action( 'parse_request', 'vb_catch_bitmob_redirect' );