User account delegation change

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	Requires one of the following data sources: Windows Event Collector OR XDR Agent with eXtended Threat Hunting (XTH)
Detection Modules	Identity Analytics
ATT&CK Tactic	Persistence (TA0003)
ATT&CK Technique	Account Manipulation (T1098)
Severity	Informational

Description

A user account was modified with delegation to a service.

Attacker's Goals

An attacker may attempt to control an Active Directory environment.

Investigative actions

• Verify this action with the user who performed the change.
• Check if the account modified is a service account.
• Follow actions by the user, including TGT and TGS requests.
• Monitor for anomalous Kerberos activity.

Variations

User account delegation to KRBTGT

Synopsis

Field	Value
ATT&CK Tactic	Credential Access (TA0006)
ATT&CK Technique	Steal or Forge Kerberos Tickets (T1558)
Severity	High

Description

A user account was modified with delegation to the KRBTGT service.

Attacker's Goals

An attacker may attempt to control an Active Directory environment.

Investigative actions

• Verify this action with the user who performed the change.
• Check if the account modified is a service account.
• Follow actions by the user, including TGT and TGS requests.
• Monitor for anomalous Kerberos activity.

User account delegation to a DC

Synopsis

Field	Value
ATT&CK Tactic	Persistence (TA0003)
ATT&CK Technique	Account Manipulation (T1098)
Severity	Low

Description

A user account was modified with delegation to a service on a domain controller.

Attacker's Goals

An attacker may attempt to control an Active Directory environment.

Investigative actions

• Verify this action with the user who performed the change.
• Check if the account modified is a service account.
• Follow actions by the user, including TGT and TGS requests.
• Monitor for anomalous Kerberos activity.