Thousands of attempts to port 35825 and 11090

I'm seeing continuous attempts to these two ports in my router's logs.  M=
ost of the source IP addresses I looked up are in China (I'm in Canada). =
 What are they after?!

I have searched for hours for info on these two ports and come up empty. =
 ie. seemingly no known exploits.

Thanks in advance,
Art

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