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Application Added to Google Workspace Domain

Detects when an administrator adds a Google Workspace Marketplace application to the domain. Adversaries with administrative access may register a malicious OAuth application to establish long-lived API access to…

Description

Detects when an administrator adds a Google Workspace Marketplace application to the domain. Adversaries with administrative access may register a malicious OAuth application to establish long-lived API access to mail, drive, and other Workspace data, maintaining persistence and enabling collection without relying on a single user password alone.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

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Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
event_index

Known benign triggers

  • Applications can be added to a Google Workspace domain by system administrators. Verify that the configuration change was expected. Exceptions can be added to this rule to filter expected behavior.

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