[Çözüldü] Bir türlü bulunamayanlogon aktivitesi ve User Lockout

Merhaba,

Bir AD sorum olacak. Domain admin yetkili hesabım var. Şifre değişikliği yaptım ve sonrasında lock olmaya başladı. SIEM ve DC üzerindeki logları incelediğimde Domainde olan,fakat Domain admin kullanıcımın login yetkisi olmayan bir sunucudan login aktivitesi yapmaya çalıştığını ancak yanlış şifre yüzünden lock olduğunu görüyorum.

10.40.2.222 sunucusundaki security loglarına baktığımda domainadminkullancim ile ilgili bir log göremiyorum.

Şu durumda 10.40.2.222 IP adresli sunucuda hangi process bu ya da uygulama buna neden oluyor bulamıyorum.

Sizlerin bir önerisi olabilir mi=

Teşekkürler.

SIEM ve DC üzerindeki log ise şöyle: 

DC_IP||Security||581629480||Microsoft-Windows-Security-Auditing||4625||63||1697520420||5||DCSERVER.corp.org||||Account Lockout||21||S-1-5-18||DCSERVER$||CORP||0x3e7||S-1-0-0||domainadminkullanicim||CORP||0xc0000234||%%2307||0x0||3||Advapi  ||MICROSOFT_AUTHENTICATION_PACKAGE_V1_0||DCSERVER||-||-||0||0x2ac||C:\Windows\System32\lsass.exe||10.40.2.222||50673||An account failed to log on.

 

Subject:

Security ID: S-1-5-18

Account Name: DCSERVER$

Account Domain: CORP

Logon ID: 0x3E7

 

Logon Type: 3

 

Account For Which Logon Failed:

Security ID: S-1-0-0

Account Name: domainadminkullanicim

Account Domain: CORP

 

Failure Information:

Failure Reason: Account locked out.

Status: 0xC0000234

Sub Status: 0x0

 

Process Information:

Caller Process ID: 0x2ac

Caller Process Name: C:\Windows\System32\lsass.exe

 

Network Information:

Workstation Name: DCSERVER

Source Network Address: 10.40.2.222

Source Port: 50673

 

Detailed Authentication Information:

Logon Process: Advapi  

Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0

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.