Device Registration Policy modification

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	AzureAD Audit Log
Detection Modules	Identity Threat Module, SaaS Threat Detection
ATT&CK Tactic	Defense Impairment (TA0112)
ATT&CK Technique	Modify Authentication Process (T1556)
Severity	Informational

Description

An identity changed the Device Registration policy.

Attacker's Goals

• An attacker attempts to change Active Directory configuration for persistence or defense evasion.
• With a modified Device Registration policy, an attacker might be able to access the tenant without possible blockage for later access.

Investigative actions

• Check what policy has been changed.
• Check whether the user changing the configuration is permitted to perform such actions.

Variations

A user modified the Device Registration Policy for the first time

Synopsis

Field	Value
ATT&CK Tactic	Defense Impairment (TA0112)
ATT&CK Technique	Modify Authentication Process (T1556)
Severity	Low

Description

An identity changed the Device Registration policy.

Attacker's Goals

• An attacker attempts to change Active Directory configuration for persistence or defense evasion.
• With a modified Device Registration policy, an attacker might be able to access the tenant without possible blockage for later access.

Investigative actions

• Check what policy has been changed.
• Check whether the user changing the configuration is permitted to perform such actions.