False positive of the following script:
C:\Windows\system32\ipconfig /renew
C:\Windows\system32\nbtstat -R
C:\Windows\system32\nbtstat -RR
C:\Windows\system32\ipconfig /flushdns
net stop dnscache
net start dnscache
C:\Windows\system32\ipconfig /registerdns
File sent to virus (at) avast (dot) com