Anonymous logon suspicious in Event Viewer

I see a couple of these safety Event Viewer logs in my computer connected to the domain:

Log name: security
Source: Microsoft-Windows-security-auditing
Date: 08/11/2014 06:54:52
Event ID: 4624
Task category: logon
Level: Information
Keywords: Audit success
User: n/a
Computer: 1K7RGX1
Description:
An account has been connected successfully.

Object:
Security ID: NULL SID
Account name: -.
Account domain: -.
Logon ID: 0x0

Logon type: 3

New logon:
Security ID: ANONYMOUS logon
Account name: ANONYMOUS logon
Account domain: NT AUTHORITY
Login ID: 0x2f261
Logon GUID: {00000000-0000-0000-0000-000000000000}

Process information:
Process ID: 0 x 0
Process name: -.

Network information:
Name of the workstation:
Source network address: -.
Source port: -.

Detailed authentication information:
Logon process: NtLmSsp
Authentication package: NTLM
Transited Services: -.
Package Name (NTLM only): NTLM V1
Key length: 0

This event is generated when a session is created. It is generated on the computer that was consulted.

The fields of the object indicate the account on the local system that requested the opening of session. It is more often a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.

The logon type field indicates the type of logon that occurred. The most common types are 2 (interactive) and 3 (network).

The new session fields indicate the account for which the new logon was created, which is the account that was logged.

The network fields indicate where source opening of remote session request. Workstation name is not always available and may be left blank in some cases.

The authentication information fields provide detailed information on this specific logon request.
-Connection GUID is a unique identifier that can be used to correlate this event with a KDC event.
-Transit services indicate which intermediate services participated in this logon request.
-Name of the package indicates what auxiliary 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.

Some of them bear the name of the listed computer, some of them do not. I did not except the default administrative shares, shared folders. I don't share printers and 'file and printer sharing' are disabled in my Advanced settings network. Where do I get these? They are really suspect.

Hey Kevin,

Thanks for posting your query in Microsoft Community.

The description of the question, I understand you are facing a problem with Windows 7 security and your computer is connected to the domain.

I suggest you post your query in the TechNet forums to get help.

Follow the link below for the TechNet forums.

https://social.technet.Microsoft.com/forums/Windows/en-us/home

If you need more help, please do not hesitate to contact us.

Tags: Windows

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