Yes, Windows Defender is part of Server 2016. Yes, you can (effectively) 
disable it (by creating a global exemption for all files and all processes and 
disabling real-time scanning).

Can't speak to your Tivoli experience. Probably should complain on twitter for 
more attention.

-----Original Message-----
From: listsad...@lists.myitforum.com [mailto:listsad...@lists.myitforum.com] On 
Behalf Of Klaus Hartnegg
Sent: Wednesday, November 9, 2016 4:35 PM
To: ntsysadm@lists.myitforum.com
Subject: Re: [NTSysADM] Managed Anti-Malware for Servers

Am 09.11.2016 um 07:29 schrieb Kish N Kepi:
> I'm looking for recommendations for Anti-Malware software to install 
> specifically on Windows Servers (2008R2, 2012R2, 2016)

NONE.

On a normal workstation with dumb users one may hope that the pros outweight 
the cons, but how should they manage to do this on a server with only admin 
users, with no web surfing and no email?

All anti-virus/malware products have pros an cons. One of the cons is that they 
create false positives, which sometimes break windows. You don't want this to 
happen on your servers. On all at once.

Another con is that they (and their updaters) have serveral times been shown to 
be very buggy, they could be tricked into running arbitrary code with system 
rights. Consider how many different file formats such software must be able to 
interpret, and that code often can only be judged by letting parts of it 
actually run (in a sandbox, but still). 
Antivirus software is maybe the easiest way how an attacker can trick an 
otherwise secure server into running his code. Just by coping a crafted file to 
a shared directory.

On most servers nobody should be surfing the web or reading emails. 
Except on terminal servers. And maybe except in Server 2016, if it acts like 
Win10, where many links in the UI trigger Edge, eventhough they do not look any 
different than the other options around them. Bad design. 
But if you disable Explorer and Edge, and do not install any other browser or 
email software, the server should be pretty safe. Probably safer without 
anti-something software, than with it.

Btw does anybody know if Defender is part of Server 2016? If so can it be 
disabled?

We just get lots of false positives from Defender in Win10. On my own PC such a 
false positive recently killed the backup process (Tivoli) several days in 
sequence, eventhough the affected file was already in the whitelist. The data 
on this machine machine would definitely have been safer without Defender than 
with it. Finally had to delete that file to make backup work again.

How can it be that we have 2016, and there is still backup software around, 
that aborts when one file is blocked by antivirus software? 
Please somebody wake up IBM, and make them fix this.




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