Kerberos Pre-authentication Disabled for User

Last updated a year ago on 2025-03-20

Created 4 years ago on 2022-01-24

About

Identifies the modification of an account's Kerberos pre-authentication options. An adversary with GenericWrite/GenericAll rights over the account can maliciously modify these settings to perform offline password cracking attacks such as AS-REP roasting.

Tags

Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Credential AccessTactic: Defense EvasionTactic: Privilege EscalationUse Case: Active Directory MonitoringData Source: Active DirectoryData Source: Windows Security Event LogsLanguage: eql

Severity

medium

Risk Score

MITRE ATT&CK™

Credential Access (TA0006)(external, opens in a new tab or window)

↳ Steal or Forge Kerberos Tickets (T1558)(external, opens in a new tab or window)

Defense Evasion (TA0005)(external, opens in a new tab or window)

↳ Impair Defenses (T1562)(external, opens in a new tab or window)

Privilege Escalation (TA0004)(external, opens in a new tab or window)

↳ Valid Accounts (T1078)(external, opens in a new tab or window)

License

Elastic License v2(external, opens in a new tab or window)

Definition

Rule Type

Event Correlation Rule

Integration Pack

Prebuilt Security Detection Rules

Index Patterns

logs-system.security*logs-windows.forwarded*winlogbeat-*

Related Integrations

system(external, opens in a new tab or window)

windows(external, opens in a new tab or window)

Query

✄𐘗text code block:
✄𐘗any where host.os.type == "windows" and event.code == "4738" and
  winlog.event_data.NewUACList == "USER_DONT_REQUIRE_PREAUTH"

Install detection rules in Elastic Security

Detect Kerberos Pre-authentication Disabled for User in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(external, opens in a new tab or window).