Logon Logoff Event: 530

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The Who, Where and When information is very important for an administrator to have complete knowledge of all activities that occur on their Active Directory. This helps them identify any desired / undesired activity happening. ADAudit Plus assists an administrator with this information in the form of reports. In real-time, ensure critical resources in the network like the Domain Controllers are audited, monitored and reported with the entire information on AD objects - Users, Groups, GPO, Computer, OU, DNS, AD Schema and Configuration changes with 200+ detailed event specific GUI reports and email alerts.

Logon Logoff » Logon Logoff Event: 530

Event ID 530 – Logon Failure: Account Logon Time Restriction Violation

Event ID 530
Category Logon/Logoff
Type Failure Audit
Description Logon failure — Account logon time restriction violation

Event 530 is generated when a user attempts to logon to a workstation or server during non-business hours (outside the hour/day/week time restrictions that are set for that account). This event is generated on the same server or workstation where the user tried to logon. When the user fails to log onto the domain controller, the event is once again generated.

This event is generated only when the logon attempt is made with a domain account. This does not hold good for local accounts which have no time restrictions.

This log data provides the following information:

  • User Name
  • Domain
  • Logon Type
  • Logon Process
  • Authentication Package
  • Workstation Name

Additionally, in Windows Server 2003, the following information is also made available:

  • Caller User Name
  • Caller Domain
  • Caller Logon ID
  • Caller Process ID
  • Transited Services
  • Source Network Address
  • Source Port

Why does event ID 530 need to be monitored?

  • To detect brute-force, dictionary, and other password guess attacks.
  • To detect abnormal and possibly malicious internal activity.
  • To come up with a benchmark for the account lockout threshold policy.
  • To ensure compliance with regulatory mandates.

Pro Tip:

ADAudit Plus can identify whether any user who has a 'logon hour restriction' is trying to access the systems during non-business, prohibited hours and provide real-time alerts.

Event 530 applies to the following operating systems:

  • Windows Server 2000
  • Windows 2003 and XP

Corresponding event ID in Windows 2008 and Vista is 4625.

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