You also need to change the Class defiinition in the file, in order to create your unique module…. If you were to take the blockadvertising one as an example, at thetop of the file blockadvertising.php you’ll find:
class BlockAdvertising extends Module
{
function __construct()
{
$this->name = 'blockadvertising';
$this->tab = 'Blocks';
$this->version = 0.1;
parent::__construct(); // The parent construct is required for translations
$this->page = basename(__FILE__, '.php');
$this->displayName = $this->l('Block advertising');
$this->description = $this->l('Adds a block to display an advertising');
}
You need to create a new class (a new module), so you’ll have to change the first line at the very least. In order to prevent confusion I suggest you change the other values too, as these are what people will see in their Back Office 
Example:
class MyBrilliantModule extends Module
{
function __construct()
{
$this->name = 'mybrilliantmodule';
$this->tab = 'Blocks';
$this->version = 0.1;
parent::__construct(); // The parent construct is required for translations
$this->page = basename(__FILE__, '.php');
$this->displayName = $this->l('My Brilliant Module');
$this->description = $this->l('This is a brilliant module');
}
You’ll also need to replace any other references to ‘BlockAdvertising’ in the original module files.
Paul