This post is a sequel to Tech support scammers using Winlogon. As we have found after writing that post there are many variants of this scam.
I want to go into some more detail about the last one. Where the first variants all showed you a screen asking for a product key and some buttons that the “remote assistants” could use to “magically” solve your reboot problem (that they caused themselves in the first place), this one just appears to be hanging. It just displays the phone number, a Microsoft Windows logo, the moving dots associated with “wait a bit, we’re working on it”, and a “Start” button.
