Network security: Restrict NTLM: Audit incoming NTLM traffic

Active Directory Auditing Tool

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.

Object Access » Network security: Restrict NTLM: Audit incoming NTLM traffic

What is Network security: Restrict NTLM: Audit incoming NTLM traffic setting?

Network security: Restrict NTLM: Audit incoming network traffic is a security policy setting that audits all the incoming network traffic for NTLM authentication. NTLM is an older Windows authentication protocol that has been known to be vulnerable to man-in-the-middle (MITM) attacks, brute force attacks, SMB relay, and so on. Therefore, auditing the incoming traffic for NTLM authentication can help a network administrator decide whether NTLM authentication should be restricted on the network.

There are two ways to enable this policy setting:

  • Enable auditing for domain accounts: If this option is enabled, the server will audit and log the domain accounts that attempt to logon with NTLM authentication.
  • Enable auditing for all accounts: If this option is enabled, the server will audit and log all the accounts that attempt to logon with NTLM authentication.

These logs are stored in the 'Operational' log located under Applications and Services Log\Microsoft\Windows\NTLM.

About ADAudit Plus:

ADAudit Plus is a real time change auditing software that helps keep your Active Directory, Azure AD, Windows file servers, NetApp filers, EMC file systems, Synology file systems, Windows member servers, and workstations secure and compliant. With ADAudit Plus, you can get visibility into:

  • Authorized and unauthorized AD management changes
  • User logons, logoffs, and account lockouts
  • GPO changes
  • Group attribute and membership changes
  • OU changes
  • Privileged access and permission changes
  • Azure AD logons, and changes to roles, groups, and applications
  • PowerShell scripts and modules

among other things.

There are more than 200 event-specific reports, and you can configure instant email alerts. You can also export the reports to XLS, HTML, PDF and CSV formats to assist in interpretation and forensics. For more information on ADAudit Plus, visit: https://www.manageengine.com/active-directory-audit/.

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