Azure Activity Logs
m365-azureCloud InfrastructureCloud Admin PortalSIEM / Log Aggregator
Location
Azure Portal > Monitor > Activity Log (or az monitor activity-log list)Description
Subscription-level logs recording control-plane operations against Azure resources including resource creation/deletion, role assignments, policy changes, and deployment operations with caller identity and IP address.
Forensic Value
Activity logs expose infrastructure-level attacks in Azure environments. Key indicators include unexpected VM creation (cryptomining or pivot hosts), storage account access key regeneration (preparation for data exfiltration), NSG rule modifications (opening inbound RDP/SSH), and resource lock deletions (preparing for resource destruction). The caller IP and identity fields tie actions to specific compromised accounts.
Tools Required
Azure PortalAzure CLI (az monitor activity-log)PowerShell (Az module)Microsoft Graph API