Which data source is most reliable for reconstructing the creation events of user accounts on a Windows server?

Which data source is most reliable for reconstructing the creation events of user accounts on a Windows server?

• A. Review of SIDs in the Registry
• B. Forensic duplication of hard drive
• C. Analysis of volatile data
• D. Recreating accounts from memory

Answer: (B)

To accurately reconstruct when user accounts were created on a Windows server, you need a complete, non-altered snapshot of the system’s storage so you can examine the historical records that document those events. A forensic image preserves the Security event logs, which record account creation events (with exact timestamps and who performed the action), as well as the SAM/registry data that ties accounts to SIDs and other identifying details. An acquired disk image lets you analyze these artifacts in a forensically sound way, even if the original system has been altered or logs rotated since the events occurred. Volatile data is unreliable for this purpose because it lives in memory and disappears when the machine powers down. Recreating accounts from memory is not credible, and while reviewing SIDs in the registry can provide clues about accounts, it does not reliably show when those accounts were created or provide a complete activity timeline.

To accurately reconstruct when user accounts were created on a Windows server, you need a complete, non-altered snapshot of the system’s storage so you can examine the historical records that document those events. A forensic image preserves the Security event logs, which record account creation events (with exact timestamps and who performed the action), as well as the SAM/registry data that ties accounts to SIDs and other identifying details. An acquired disk image lets you analyze these artifacts in a forensically sound way, even if the original system has been altered or logs rotated since the events occurred.

Volatile data is unreliable for this purpose because it lives in memory and disappears when the machine powers down. Recreating accounts from memory is not credible, and while reviewing SIDs in the registry can provide clues about accounts, it does not reliably show when those accounts were created or provide a complete activity timeline.