Logon Logoff Event: 4627

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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: 4627

Event ID 4627 – Group Membership Information

Event ID 4627
Category Logon/Logoff
Sub-Category Audit Group Membership
Type Success Audit
Description Information about the group membership

Event 4627 is generated along with event 4624 (successful account logon) and shows the entire list of groups that the particular logged-on account belongs to. If all the security information cannot be fit into a single security audit event, multiple events are generated.

This log data provides the following information:

  • Security ID
  • Account Name
  • Account Domain
  • Logon ID
  • Event in Sequence
  • Group Membership

Why does event ID 4627 need to be monitored?

  • To ensure there are no reports from other Security IDs, apart from "NULL SID".
  • To track whether members of a specific group have logged on.
  • To monitor actions of high value accounts
  • To detect anomalies and malicious actions
  • To ensure non-active, external, and restricted accounts are not used
  • To ensure that only white-listed accounts perform certain specific actions
  • To enforce conventions and compliances

Pro Tip:

With in-depth reports, real-time alerts, and graphical displays, ADAudit Plus tracks successful logons by local users and the groups associated with that account, thus helping you meet your security, operational, and compliance needs with absolute ease.

Event 4627 applies to the following operating systems:

  • Windows Vista
  • Windows 2008 R2 and 7
  • Windows 2012 R2 and 8.1
  • Windows 2016 and 10

Corresponding events in Windows 2003 and before: nil.

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