Windows Server 2000
Windows 2003 and XP
Successful Network Logon
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Event 540 gets logged when a user elsewhere on the network connects to a resource (e.g. shared folder) provided by the Server service on this computer. The Logon Type will always be 3 or 8, both of which indicate a network logon.
Logon type 3 is what you normally see. Logon Type 8 means network logon with clear text authentication. The only scenario where we've observed logon type 8 is with logons to IIS web-sites via Basic Authentication. Don't immediately sound the alarms if you see logon type 8 since most Basic Authentication is wrapped up inside an SSL session via https.
For all other logon types see event 528.
Event 540 gets logged whether the account used for logon is a local SAM account or a domain account. For all other types of logons this event is logged including
For an explanation of logon processes see event 515. For an explanation of authentication package see event 514.
Logon GUID is not documented. It is not clear what the caller user, caller process ID, transited services are about.
Source Network Address corresponds to the IP address of the Workstation Name. Source Port is the TCP port of the workstation and has dubious value.