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Merge pull request #7903 from joinimran/patch-84

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Minor edits in Event
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Denise Vangel-MSFT 2020-07-23 10:02:36 -07:00 committed by GitHub
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windows/security/threat-protection/auditing/event-4771.md
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@ -7,7 +7,7 @@ ms.mktglfcycl: deploy
ms.sitesec: library
ms.localizationpriority: none
author: dansimp
ms.date: 04/19/2017
ms.date: 07/23/2020
ms.reviewer:
manager: dansimp
ms.author: dansimp
@ -226,6 +226,6 @@ For 4771(F): Kerberos pre-authentication failed.
| **Pre-Authentication Type** | Value is **not 15** when account must use a smart card for authentication. For more information, see [Table 5. Kerberos Pre-Authentication types](#kerberos-preauthentication-types). |
| **Pre-Authentication Type** | Value is **not 2** when only standard password authentication is in use in the organization. For more information, see [Table 5. Kerberos Pre-Authentication types](#kerberos-preauthentication-types). |
| **Pre-Authentication Type** | Value is **not 138** when Kerberos Armoring is enabled for all Kerberos communications in the organization. For more information, see [Table 5. Kerberos Pre-Authentication types](#kerberos-preauthentication-types). |
| **Result Code** | **0x10** (KDC has no support for PADATA type (pre-authentication data)). This error can help you to more quickly identify smart-card related problems with Kerberos authentication. |
| **Result Code** | **0x18** ((Pre-authentication information was invalid), if you see, for example N events in last N minutes. This can be an indicator of brute-force attack on the account password, especially for highly critical accounts. |
| **Failure Code** | **0x10** (KDC has no support for PADATA type (pre-authentication data)). This error can help you to more quickly identify smart-card related problems with Kerberos authentication. |
| **Failure Code** | **0x18** ((Pre-authentication information was invalid), if you see, for example N events in last N minutes. This can be an indicator of brute-force attack on the account password, especially for highly critical accounts. |