Whitelisting of Files

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Whitelisting of Files

L3 Networker

Hello, 

We are running periodic scan on all endpoints . During this scan few files has been detected .We have  got confirmation that some of the files are legitimate and it's being used in infra. 

Can you please suggest in providing what is the best method to whitelist the safe and confirmed files . 

5 REPLIES 5

L4 Transporter

Hi @Shashanksinha,

Thank you for writing to Live Community.

You would need to can create a malware profile and exclude specific files from scans. This page should guide you how to proceed.

Visit our Cortex XDR Customer Corner on Live Community to access resources for your product journey, engage in discussions with community members and subject matter experts, and register for upcoming events: Cortex XDR Customer Corner

Hello,

 

Thanks for your response.

As you mentioned to create malware profile and exclude specific files from scans, as we have multiple files present in different folders so it will be difficult to add every path with *. If we whitelist the file hash does this exclude from scans?

L4 Transporter

Yes, you can whitelist the file hash by going into Incident Response → Action Center → New Action – Add to allow list.
Please note that once the file changes (via updates for example) you will need to whitelist the new hash again.

If you know the signature of your verified software, you can also add the singer as a trusted signer when creating a new malware profile (the page I recommended in the above response).


 

Visit our Cortex XDR Customer Corner on Live Community to access resources for your product journey, engage in discussions with community members and subject matter experts, and register for upcoming events: Cortex XDR Customer Corner

Hello,

Thanks for responding.

If we add the hash of the file in allow list .So does alerts/incidents excludes in the malware scan. . 

As we are observing incidents/alerts for the files despite being in allow list. 

 

Hi @Shashanksinha,

Please note that adding file hash to the allowlist will bypass the verdict of WF or local analysis, it will not prevent alerts generated by BTP rules, and alerts can still be triggered by child processes .

In case your alerts are triggered by BTP rules, you can add a Global Behavioral Threat Protection (BTP) Rule Exception.






Visit our Cortex XDR Customer Corner on Live Community to access resources for your product journey, engage in discussions with community members and subject matter experts, and register for upcoming events: Cortex XDR Customer Corner

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