Unified Audit Logs will need to be enabled. To check for the MailItemsAccessed Operation, your tenant organization requires an Office 365 or Microsoft 365 E5/G5 license. Exchange Online Admin Center: Utilize a custom group for these specific permissions:.The following AzureAD/m365 permissions are required to run Sparrow.ps1, and provide it read-only access to the Tenant. The tool then outputs the data into multiple CSV files that are located in the user's default home directory in a folder called 'ExportDir' (ie: Desktop/ExportDir).įor more guidance on how to use Sparrow and Aviary, please see: Requirements Sparrow.ps1 will check and install the required PowerShell modules on the analysis machine, check the unified audit log in Azure/M365 for certain indicators of compromise (IoC's), list Azure AD domains, and check Azure service principals and their Microsoft Graph API permissions to identify potential malicious activity. It is neither comprehensive nor exhaustive of available data, and is intended to narrow a larger set of available investigation modules and telemetry to those specific to recent attacks on federated identity sources and applications. The tool is intended for use by incident responders, and focuses on the narrow scope of user and application activity endemic to identity and authentication based attacks seen recently in multiple sectors. Sparrow.ps1 was created by CISA's Cloud Forensics team to help detect possible compromised accounts and applications in the Azure/m365 environment. Aviary-a Splunk-base dashboard-facilitates analysis of Sparrow data outputs. CISA created Sparrow to support hunts for threat activity following the SolarWinds compromise. Sparrow helps network defenders detect possible compromised accounts and applications in Azure/Microsoft O365 environments. AviaryĪviary is a new dashboard that CISA and partners developed to help visualize and analyze outputs from its Sparrow detection tool released in December 2020. ![]() This repo is archived as of - and is no longer being maintained.
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