yesterday was some BTC stollen from my wallet (PC). I dont know how or who or how did this happened. [ ... ]
Impossible to say, as you don't know how they were stolen. [ ... ]
All I can found that BTC was sent to 183u3xkUUqpVwJmmLqqt14cchS5Mu9CQk7 and then to 17gH1u6VJwhVD9cWR59jfeinLMzag2GZ43 .. but I had some secure things like firewall antispam .. .etc. on my computer .. but i looks it is not enough .. So I hope trezor will make it safe for next time.
Were you handling that wallet when the first transaction happened, or shortly before?
No, only incoming trancaction All i See is one transaction few hours befonr.
Do you use Dropbox or some other external storage?
No external (Inet) devices .. only my own NAS with firewall and restricted IPs
Was the wallet totally emptied, or only part of it?
tottlly empty after that attack
What software/hardware did you use to generate your private keys?
sorry but I dont understand this queston. Do you mean passwords? Or what type of keys?
I meant, what software do you use to handle your wallet. How did you create the private keys of the accounts that were emptied.