Short-lived Azure AD user account

Cortex XDR Analytics Alert Reference by Alert name

Product: Cortex XDR
Last date published: 2024-10-08
Category: Analytics Alert Reference
Order: Alert name

Synopsis

Activation Period	14 Days
Training Period	30 Days
Test Period	1 Hour
Deduplication Period	1 Day
Required Data	Requires: AzureAD Audit Log
Detection Modules	Identity Threat Module
Detector Tags
ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Valid Accounts (T1078)
Severity	Informational

Description

An Azure AD user was created and deleted within a short period of time.

Attacker's Goals

Evasion using a valid account.

Investigative actions

Check the user who created the account and verify the activity.
Confirm that the account creation was not accidental.

Variations

Abnormal Short-lived Azure AD user account

Synopsis

ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Valid Accounts (T1078)
Severity	Low

Description

An Azure AD user was created and deleted within a short period of time. by an identity does not regularly create and delete accounts.

Attacker's Goals

Evasion using a valid account.

Investigative actions

Check the user who created the account and verify the activity.
Confirm that the account creation was not accidental.