right click on 'wup' and, jump to file location and see where it is located, which might tell you a bit more about what it is...; note where it is, and, you can steer a scanner to it manually if necessary...

Can you terminate the process within task manager?

A scan with Malwarebytes Antimalware might be in order...

(Google searches on WUP only indicate that it is indeed malware)
 
May 6, 2018
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right click on 'wup' and, jump to file location and see where it is located, which might tell you a bit more about what it is...; note where it is, and, you can steer a scanner to it manually if necessary...

Can you terminate the process within task manager?

A scan with Malwarebytes Antimalware might be in order...

(Google searches on WUP only indicate that it is indeed malware)
I can turn it off in the task manager when it appears, but after 15min +/- it reappears!