Are you using bitcoin Core as your wallet?
Maybe try to double spend it again with a higher fee to a wallet you own?
Simply import the private key into another wallet (e.g., Mycelium) and spend it from there. The (17$)
Correct me if im wrong, and if that's not possible due to the transaction size, or because it is already double spend?
See
http://bitzuma.com/posts/how-to-clear-a-stuck-bitcoin-transaction/Either way, if you did not sent that transaction, you probably got hacked, and it would be wise to either reformat your pc, or do some good anti-virus checks as there is clearly something wrong.