Windows Security Notification - Trojan:Win32/Vundo.gen!D

Why Windows Security giving me a Notification saying - Trojan:Win32/Vundo.gen!D ?
I ran a full scan with Norton and it doesn’t seem to find it.

What to do?

@birdox Here is what Microsoft states this detection is. Did Defender state the threat had been removed? Is further action required?

Summary

Trojan:Win32/Vundo.gen!D is a component of Win32/Vundo - a multiple-component family of programs that deliver ‘out of context’ pop-up advertisements. They may also download and execute arbitrary files.

Vundo is often distributed as a DLL file and installed on an affected machine as a Browser Helper Object (BHO) without a user’s consent. This family uses advanced defensive and stealth techniques to escape detection and to hinder removal.

*Next steps: Clear data, cache and cookies from ALL browsers installed on the computer. Restart. Download Malwarebytes and run a full scan. See if anything is detected.

SA