How would you disable the anti malware filtering and ensure that engine updates from microsoft are
downloaded and updated.

A.
Disable-Antimalwareagent.ps1

B.
Set-malwarefilteringserver

C.
Disable-Antimalwarescanning.ps1 (probable option)

D.
Update-MalwareFilteringServer.ps1 (guessed option)

Explanation:
http://technet.microsoft.com/en-us/library/jj150526(v=exchg.150).aspx
To disable malware filtering, run the following command:& $env:ExchangeInstallPath\\Scripts\\DisableAntimalwarescanning.ps1