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Offline andrewt2m  
#1 Posted : 06 January 2021 19:42:01(UTC)

Rank: Member

Groups: Registered
Joined: 21/09/2020(UTC)
Posts: 24
United Kingdom
Location: Reading

Why are we seeing these?

Is it an internal service that has the wrong credentials?

Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 06/01/2021 15:31:30
Event ID: 4625
Task Category: Logon
Level: Information
Keywords: Audit Failure
User: N/A
Computer: Desktop.domain.local
An account failed to log on.

Security ID: S-1-0-0
Account Name: -
Account Domain: -
Logon ID: 0x0

Logon Type: 3

Account For Which Logon Failed:
Security ID: S-1-0-0
Account Name: 00support
Account Domain: domain

Failure Information:
Failure Reason: Unknown user name or bad password.
Status: 0xC000006D
Sub Status: 0xC000006A

Process Information:
Caller Process ID: 0x0
Caller Process Name: -

Network Information:
Workstation Name: desktop.domain.local
Source Network Address: -
Source Port: -

Detailed Authentication Information:
Logon Process: NtLmSsp
Authentication Package: NTLM
Transited Services: -
Package Name (NTLM only): -
Key Length: 0

This event is generated when a logon request fails. It is generated on the computer where access was attempted.

The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.

The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).

The Process Information fields indicate which account and process on the system requested the logon.

The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.

The authentication information fields provide detailed information about this specific logon request.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
<TimeCreated SystemTime="2021-01-06T15:31:30.793913400Z" />
<Correlation />
<Execution ProcessID="864" ThreadID="2660" />
<Security />
<Data Name="SubjectUserSid">S-1-0-0</Data>
<Data Name="SubjectUserName">-</Data>
<Data Name="SubjectDomainName">-</Data>
<Data Name="SubjectLogonId">0x0</Data>
<Data Name="TargetUserSid">S-1-0-0</Data>
<Data Name="TargetUserName">00support</Data>
<Data Name="TargetDomainName">domain</Data>
<Data Name="Status">0xc000006d</Data>
<Data Name="FailureReason">%%2313</Data>
<Data Name="SubStatus">0xc000006a</Data>
<Data Name="LogonType">3</Data>
<Data Name="LogonProcessName">NtLmSsp </Data>
<Data Name="AuthenticationPackageName">NTLM</Data>
<Data Name="WorkstationName">desktop.domain.local</Data>
<Data Name="TransmittedServices">-</Data>
<Data Name="LmPackageName">-</Data>
<Data Name="KeyLength">0</Data>
<Data Name="ProcessId">0x0</Data>
<Data Name="ProcessName">-</Data>
<Data Name="IpAddress">-</Data>
<Data Name="IpPort">-</Data>


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Offline andrewt2m  
#2 Posted : 23 April 2021 21:31:00(UTC)

Rank: Member

Groups: Registered
Joined: 21/09/2020(UTC)
Posts: 24
United Kingdom
Location: Reading

It means that either:

  • The account was locked out because some entered the wrong credentials and failed the final logon chance
  • The accounts was already locked out and someone tried to use it to login

Either way it happened on that computer.

Edited by user 23 April 2021 21:31:50(UTC)  | Reason: Not specified

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