Unverified domain added to Azure AD

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Hour

Required Data

  • Requires:
    • AzureAD Audit Log

Detection Modules

Identity Threat Module

ATT&CK Tactic

Persistence (TA0003)

ATT&CK Technique

Account Manipulation: Additional Cloud Credentials (T1098.001)

Severity

Informational

Description

A new unverified domain was added to Azure AD.

Attacker's Goals

An attacker attempts to change Active Directory configuration for persistence or defense evasion.

Investigative actions

  • Check if the new domain is known for the organization.
  • Check whether the user changing the configuration is permitted.
  • Monitor network activity to and from the added domain.

Variations

Rare unverified domain addition to Azure AD

Synopsis

ATT&CK Tactic

Persistence (TA0003)

ATT&CK Technique

Account Manipulation: Additional Cloud Credentials (T1098.001)

Severity

Low

Description

A new unverified domain was added to Azure AD.

Attacker's Goals

An attacker attempts to change Active Directory configuration for persistence or defense evasion.

Investigative actions

  • Check if the new domain is known for the organization.
  • Check whether the user changing the configuration is permitted.
  • Monitor network activity to and from the added domain.