Re: MS Defender for OL7 Oracle DB servers

I usually don't speak up much but I am very passionate about security and the protection of people's data in general. I have to say that some kind of antimalware should be installed on all servers, especially on database servers. It is 2022 for goodness sake and we have security breaches galore. All the leading anti-malware vendors have tons of configuration options - both for real-time and scheduled scan configurations.

In the last many years I have not seen a case where running antimalware, properly configured, caused issues. This includes deployments we have done on ExaCS, DBCS, and other very Oracle-centric solutions.

The requirement needs to be to have anti-malware installed on all servers and then configure it to work with the workload. We as IT people have the responsibility to enforce this in my view.

In the case of ms defender, it is a highly intelligent engine that is just getting better and better over time and I see no reason why this should not work - we just finished up an OCI project where this was deployed successfully in a Peoplesoft environment running Oracle databases.

Niklas Iveslatt
Senior Partner

Arisant LLC ~ http://www.arisant.com
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On Fri, Mar 4, 2022 at 12:37 PM tefetufe <coskan_at_gmail.com> wrote:

> Despite being on Exacc and ASM and exclude all binary folders for grid and
> db ms defender managed to give us trouble and I finally convinced the
> requester team not to have defender on db systems
>
> Issues
> high cpu usage for the process (last thing you want is virus scan bursn
> expensive cpu cycles)
> I had a cluster crash where defender was looking so suspicious when issue
> was happpening, maybe I just saw the excuse that I needed :)
>
> Since defender is gone did not see any single stability problem
>
> Also on vmware it gave us big hassle when we wipe huge db sitting on xfs
> to refresh it. It was blocking the files to be deleted and all of our
> refret automations failed due to being defended by defender.
>
> My suggestion is avoid at all cost if you can
>
>
>
>
> On Fri, 4 Mar 2022 at 19:29 Tim Gorman <tim.evdbt_at_gmail.com> wrote:
>
>> Rich,
>>
>> As documented HERE
>> <https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/microsoft-defender-endpoint-linux?view=o365-worldwide#common-applications-to-microsoft-defender-for-endpoint-can-impact>
>> ...
>>
>> *Common Applications to Microsoft Defender for Endpoint can impact*
>>
>> *High I/O workloads from certain applications can experience performance
>> issues when Microsoft Defender for Endpoint is installed. These include
>> applications for developer scenarios like Jenkins and Jira, and database
>> workloads like OracleDB and Postgres. If experiencing performance
>> degradation, consider setting exclusions for trusted applications, keeping **Common
>> Exclusion Mistakes for Microsoft Defender Antivirus
>> <https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/common-exclusion-mistakes-microsoft-defender-antivirus>**
>> in mind. For additional guidance, consider consulting documentation
>> regarding antivirus exclusions from third party applications.*
>>
>>
>> Personally, I think any sort of "protective" software running on a
>> database server is another good reason to use Oracle ASM, as A/V software
>> generally "protects" only filesystem-based files, and do not recognize (or
>> bother with) block-special or character-special devices. Just my opinion,
>> when you can't prevent A/V software from being used in the first place.
>>
>> Hope this helps...
>>
>> Thanks!
>>
>>
>> -Tim
>>
>>
>>
>> On 3/4/2022 6:50 AM, Rich J wrote:
>>
>> Hey all,
>>
>> Anyone run into any issues running MS Defender on their Oracle DB servers
>> on Linux? This would be on OL7 for now (mostly 7.7).
>>
>> One would think that the Oracle datafile directories plus the ADR tree
>> should be excluded. I'm just wondering if there's other common "gotchas"
>> that others have run into.
>>
>> Thanks,
>> Rich
>>
>>
>> --
> --
> Coskan GUNDOGAR
>
> Oracle DBA
>
> Email: coskan_at_gmail.com
> Blog: http://coskan.wordpress.com
> Twitter: http://www.twitter.com/coskan
> Linkedin: http://uk.linkedin.com/in/coskan
>

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