Data Accessed Artifacts

The Data Accessed Artifact Category contains artifacts that show what files a user explicitly opened or saved. For example, what documents they opened.

The category does not include:

  • Programs that the user launched, those are in the Process Artifact Category.
  • Files that were indirectly opened, such as configuration files that an application uses. Those are features of a process.

Key Attributes of the Artifacts

A Data Accessed artifact will have attributes such as:

  • Path to file that was opened or saved
  • Date that the file was last opened or saved

Why Is It Important For DFIR?

Data Accessed Artifacts are useful for DFIR because they answer investigative questions about user intent, even if the user account was taken over by an attacker.

  • In an intrusion case with account take over, these artifacts could show what documents the attacker was interested in. For example, if they were opening documents about a certain technology or area of the company.
  • For an insider threat case, they can show what kinds of documents the user wanted to steal.
  • In a general investigation, where the investigator is trying to profile the computer owner, then these artifacts can reveal what documents the owner was recently interested in.

Further, sometimes these artifacts will store a path to a file that no longer exists or the path could be on a removable drive, such as “D:\”. These can reveal:

  • What files were of importance and are now deleted
  • What files were on a removable drive and that may have been copied off the system

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