Identifies when Microsoft Cloud App Security reports that a user has uploaded files to the cloud that might be infected with ransomware.
Rule type: query
Risk score: 47
Runs every: 5 minutes
Maximum alerts per execution: 100
- Microsoft 365
- Continuous Monitoring
- Configuration Audit
Version: 2 (version history)
Added (Elastic Stack release): 7.16.0
Last modified (Elastic Stack release): 8.0.0
Rule authors: Austin Songer
Rule license: Elastic License v2
If Cloud App Security identifies, for example, a high rate of file uploads or file deletion activities it may represent an adverse encryption process.
## Config The Microsoft 365 Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
event.dataset:o365.audit and event.provider:SecurityComplianceCenter and event.category:web and event.action:"Potential ransomware activity" and event.outcome:success
Framework: MITRE ATT&CKTM
- Version 2 (8.0.0 release)
- Formatting only