That could be the answer since, I recently got this device. So a lot of software had to be reinstalled. But that's not what I'm worrying about. I worry about windows defender not detecting it.
Prevention is better than cure and you must know all AntiVirus Softwares can not protect your from all online threats. If you completely rely on those AVs, and think you will be safely with their shields, you are wrong and your risk will become bigger.
And it's not that I got infected and the very moment I noticed it. I think I was infected for more then 10 days. There was no way of knowing, until I tried to make a transaction and made this discovery. That's what I don't like about it. This sly virus, not showing up anywhere until someone tried something related to crypto.
I see another wrong practice here. Immediately after you got a new device, you installed, imported your wallet on it. I can not know why you do it and what is status of your previous device. Assume you have your wallet on both previous and new devices, you are too hurry to take risk with your new device that I believe not is completely new when you got it.