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.
For the benefits of us here,would you pls enlighten how this MALWARE works,how this got inside our computer system..and how can we prevent this.,and is malware goes to the gadgets?like mobile ,ipads,or tablets?