oh no... i worked so hard for them
An expensive lesson then.
can i get them back somehow?
Probably not. Unless you can somehow get the hacker to return you the money which is darn near impossible.
can i find him?
You can try to analyse the address that it was sent to. It will be extremely hard.
how can i find the malware?
You can use an anti-virus to scan it. The only thing I'll recommend is to wipe your computer and change every single of your passwords.