Unfortunately there's nothing you could do since most probably the perpetrator is living in another country and its highly likely the coins are either cashed out or spent.
The best antivirus is yourself. Avoid sketchy files and when in doubt, run them in a sandbox.
It is hard to trace people especially the hackers for they are knowledgeable about it and could remove or fake locations on tracing a hacker. This is the mindset of a hacker and probably this is an uphill battle for you to identify the hacker unless you do some entrapment or set up that will lead to exposure of his/her identity.
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