Virus problem (IPD.ALEXA.51)

My Avast Internet Security has been blocked a threat. It messages the following:

[i]The file slmgr.vbs is locked because it is infected with IDP.ALEXA.51

Threat name: IDP.ALEXA.51
Directory: C:\Users[Username]\AppData\Local\Temp\slmgr.vbs
Process: C:\Windows\System32\cscript.exe
Detected with: behavior analysis[/i]

Is it a real infection? What to do? Move it to quarantine or add to exceptions?

Is it a real infection?
you can upload and check file here www.virustotal.com

you may post link to scan result here

Hello,
Here is it
https://www.virustotal.com/gui/file/95fc646d222d324db46f603a7f675c329fe59a567ed27fdaed2a572a19206816/detection

FRST logs are clean. It is Avast false postitive but it is probably caused by Windows activator. Do you still getting Avast alerts for that file?

Not anymore.