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In this article, you’ll learn how to set these policies via GPO.
![user logon activity audit user logon activity audit](https://www.manageengine.com/products/active-directory-audit/how-to/images/how-to-audit-domain-controller-logon-activity-3.png)
To ensure the event log on the computer records user logins, you must first enable some audit policies. are logged in with an account that can read domain controller event logsĪudit policies to enable login auditing will be set via GPO in this article.
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If you’re in an AD environment be sure you:
#USER LOGON ACTIVITY AUDIT WINDOWS#
The machines I am using involve a management server running on Windows Server 2016, with a Splunk Universal forwarder configured on it that has a separate Deployment Server for installing/removing apps, but this is not entirely necessary and the edits we will do later can be done at $SPLUNK_HOME/etc/system/local/nf. We will be using essentially two distinct machines in todays lab, but this is built upon previous labs where we have configured Active Directory, Splunk Enterprise, and other important infrastructure on servers that will not be covered in todays lab. Create advanced searches which leverage the DECRYPT2 app (see resources) to decrypt encoded commands.Identifying malicious Powershell using Splunk.Using nf and regex on the Indexer/Heavy Forwarder in order to parse fields.Monitoring folder/files where Powershell event logs will be stored using Splunks' Universal Forwarder.Configure write-only permissions for domain-level users to Powershell transcript folder.Transcription, which will write all Powershell events (commands/results) to text files for analysis.Module Logging (4103), which records the pipeline execution details, as well as Script Block Logging (4104).Process Creation Auditing (4688), as well as processes started using CLI.Edit domain-level GPOs to enable logging for the following Event IDs:.In order for us to truly begin to "win" investigations into Powershell usage in our environment, we will need to accomplish the following, all of which will be covered in this lab: Splunkbase: Splunk Add-on for Microsoft Windows Malware Archaeology: Windows Logging Cheat Sheet Powershell Power Hell: Hunting For Malicious Powershell With Splunk
![user logon activity audit user logon activity audit](https://blogs.biztalk360.com/wp-content/uploads/2019/06/user-profile-template.png)
This will allow us to have much greater visibility into the movements and intentions of our adversaries and detect them much more quickly before they are able to achieve lateral movement or establish a foothold. In addition to this, we will also be configuring auditing of all user logon/logoff events to better track authentication events, as well as get alerts for potentially suspicious activity like lockouts. That is why today we will be leveraging domain-level group policy objects as well as a Splunk Universal Forwarder to both transcribe and centralize logs from distinct systems on any & all PowerShell commands. PowerShell is a Windows command-line utility commonly used by attackers and sysadmins alike to gather information from a specific host or environment, and often readily available to be exploited for those already in your network. It's not often we defenders embed tools beloved by our adversaries on systems they wish to compromise, but with such a powerful and prevalent tool, we aren't given much of a choice.