got 1 satoshi sent to address half hour after I created it

[quone17]

I know there are a bunch of these enjoy sochi sending 1 satoshi, but this is the  "Play and win" address.  Literally 25 minutes after I created a new address at an exchange the address got this 1 satoshi deposit (unconfirmed) which I assume will be a double spend.  My question is HOW could they have known about this address that I literally just created?  

EDIT:  I sent .25 btc to the address via bitbook.biz 25 minutes before they did the 1 satoshi.  Do they have a script or something that sends the 1 satoshi to any address that does a transaction, and they check via blockchain?  This is ridiculous!

[bitpop]

Yeah they find new active addresses

[Abdussamad]

EDIT:  I sent .25 btc to the address via bitbook.biz 25 minutes before they did the 1 satoshi.  Do they have a script or something that sends the 1 satoshi to any address that does a transaction, and they check via blockchain?  This is ridiculous!

It makes sense to target recently used addresses. The owner of such addresses will be paying attention to the balance so he'll notice the advertisements.