Hey, first task for you ;). If you look at the recent changes, you'll see a bot, which registered and created 2 pages. When the bot was created, you see right next to the name some options. One of them is "block". Please do that, with indefinite expiry time and spam as reason. Please also go to the both pages. They'll have a "delete" option on top.
Good luck :D The J 17:51, 24 April 2013 (UTC).