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Windows® Internals, Sixth Edition, Part 1 by David A. Solomon Mark E. Russinovich and Alex Ionescu

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Logon

Interactive logon (as opposed to network logon) occurs through the interaction of the logon process (Winlogon), the logon user interface process (LogonUI) and its credential providers, LSASS, one or more authentication packages, and the SAM or Active Directory. Authentication packages are DLLs that perform authentication checks. Kerberos is the Windows authentication package for interactive logon to a domain, and MSV1_0 is the Windows authentication package for interactive logon to a local computer, for domain logons to trusted pre–Windows 2000 domains, and for times when no domain controller is accessible.

Winlogon is a trusted process responsible for managing security-related user interactions. It coordinates logon, starts the user’s first ...

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