Ok, unpacking GZIP inside the exe file and doing some unknown things s kinda tricky.
From the first glance it seems that program is ok, but who knows. Maybe it patches claymore fee to your wallet, but also it can forward some portion of your own shares to another wallet as another fee for patcher - i wouldnt be a big surprise.
And then you can not say is it just a random spike/slide of current effective rate of your worker or it is "patch" working)
I dont have proper qualification to check except for basic diassembly until i see some unpacking of GZIP into unknown shit)
Anyway if this thing forces develper to reduce fees - i am ok with that.