Hashes of the attachment from the o365 log

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Hashes of the attachment from the o365 log

L2 Linker

Dear community,


I've been evaluating the benefits of ingesting o365 logs so far. Seeking those who have the mentioned logs ingested into Cortex XDR -

does Cortex XDR review and raise alert using the hashes of the attachment if the attachment is a malware?

Besides, what are the useful data / alert that you think it helped your organization in terms of day-to-day operation/investigation?

 

Thank you
Cortex XDR 

AC
1 accepted solution

Accepted Solutions

L4 Transporter

Hello @Antony_Chan 

 

Thanks for reaching out on Live Community!

XDR collect following data from O365 emails.

  • All message details except the body, bodyPreview, and subject.

  • Attachment details include file name, file type, file hash, size, and id.

Based on above data Cortex XDR raise alerts (Analytics, IOC, BIOC, and Correlation Rules). So if an attachment hash is listed under IOC/BIOC, XDR is going to raise an alert.

Regarding useful data/alerts, use case vary from organisation to organisation. XDR collects lot of data like Azure AD logs, exchange logs, DLP etc. Based on these logs you can build use cases. Please refer below documentation for details on ingesting Microsoft O365 logs.

https://docs-cortex.paloaltonetworks.com/r/Cortex-XDR/Cortex-XDR-Pro-Administrator-Guide/Ingest-Logs...

View solution in original post

1 REPLY 1

L4 Transporter

Hello @Antony_Chan 

 

Thanks for reaching out on Live Community!

XDR collect following data from O365 emails.

  • All message details except the body, bodyPreview, and subject.

  • Attachment details include file name, file type, file hash, size, and id.

Based on above data Cortex XDR raise alerts (Analytics, IOC, BIOC, and Correlation Rules). So if an attachment hash is listed under IOC/BIOC, XDR is going to raise an alert.

Regarding useful data/alerts, use case vary from organisation to organisation. XDR collects lot of data like Azure AD logs, exchange logs, DLP etc. Based on these logs you can build use cases. Please refer below documentation for details on ingesting Microsoft O365 logs.

https://docs-cortex.paloaltonetworks.com/r/Cortex-XDR/Cortex-XDR-Pro-Administrator-Guide/Ingest-Logs...

  • 1 accepted solution
  • 1125 Views
  • 1 replies
  • 0 Likes
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!