I'm using Windows Web Server 2008 R2 and having these log events 10-20 times each day:
An account failed to log on. Subject: Security ID: SYSTEM Account Name: SERVER241$ Account Domain: WORKGROUP Logon ID: 0x3e7 Logon Type: 10 Account For Which Logon Failed: Security ID: NULL SID Account Name: administrator Account Domain: SERVER241 Failure Information: Failure Reason: Unknown user name or bad password. Status: 0xc000006d Sub Status: 0xc0000064 Process Information: Caller Process ID: 0xf04 Caller Process Name: C:\Windows\System32\winlogon.exe Network Information: Workstation Name: SERVER241 Source Network Address: 18.104.22.168 Source Port: 1341 Detailed Authentication Information: Logon Process: User32 Authentication Package: Negotiate 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.
Should i not worry about these?
I had a lot of the same problems with my SQL Server, but i just shut em down for the public in the firewall.