Detecting Office 365 attacks
You manage access to Office 365 resources and services across your organization. More and more companies are using Microsoft's Office 365 cloud offering, and yours is no exception. Attacks against Office 365 are increasing, and as part of your role you need to be able to detect these. These searches help you do this.
Data required
Microsoft: Office 365
How to use Splunk software for this use case
- Add app role assignment grant user
- Added service principal
- Excessive SSO logon errors
- New federated domain added
- Bypass MFA via trusted IP
- Disable MFA
- Excessive authentication failures alert
- PST export alert
- Suspicious admin email forwarding
- Suspicious rights delegation
- Suspicious user email forwarding
Next steps
In addition, Splunk Enterprise Security provides a number of other searches to help reinforce your cloud security posture, including: