Suspicious SSO authentication

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 Day

Required Data

  • Requires:
    • Okta

Detection Modules

Identity Analytics

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

Valid Accounts (T1078)

Severity

Informational

Description

A suspicious SSO authentication was made by a user.

Attacker's Goals

Achieve initial access to a company's resources.

Investigative actions

  • See whether this was a legitimate action.
  • Review the external IP/domain involved in the alert.
  • Contact the user whose account is being accessed and verify that they are actually attempting to log in.
  • Check if the login attempt is coming from an unfamiliar location or device.
  • Look for unusual login patterns, such as login attempts at odd hours.
  • Monitor the user's account for further unusual activity.

Variations

Successful SSO authentication with suspicious characteristics

Synopsis

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

Valid Accounts (T1078)

Severity

Medium

Description

A user successfully accessed SSO with some suspicious characteristics that flagged this login attempt as a suspicious login.

Attacker's Goals

Achieve initial access to a company's resources.

Investigative actions

  • See whether this was a legitimate action.
  • Review the external IP/domain involved in the alert.
  • Contact the user whose account is being accessed and verify that they are actually attempting to log in.
  • Check if the login attempt is coming from an unfamiliar location or device.
  • Look for unusual login patterns, such as login attempts at odd hours.
  • Monitor the user's account for further unusual activity.


SSO authentication attempt with suspicious characteristics

Synopsis

ATT&CK Tactic

Initial Access (TA0001)

ATT&CK Technique

Valid Accounts (T1078)

Severity

Low

Description

A user accessed SSO with some suspicious characteristics that flagged this login attempt as a suspicious login.

Attacker's Goals

Achieve initial access to a company's resources.

Investigative actions

  • See whether this was a legitimate action.
  • Review the external IP/domain involved in the alert.
  • Contact the user whose account is being accessed and verify that they are actually attempting to log in.
  • Check if the login attempt is coming from an unfamiliar location or device.
  • Look for unusual login patterns, such as login attempts at odd hours.
  • Monitor the user's account for further unusual activity.