The security team obtains the laptop and begins to investigate, noting the following:

Ann, a user, reports to the security team that her browser began redirecting her to random sites while using her Windows laptop. Ann further reports that the OS shows the C: drive is out of space despite having plenty of space recently. Ann claims she not downloaded anything.

The security team obtains the laptop and begins to investigate, noting the following:

✑ File access auditing is turned off.

✑ When clearing up disk space to make the laptop functional, files that appear to be cached web pages are immediately created in a temporary directory, filling up the available drive space.

✑ All processes running appear to be legitimate processes for this user and machine.

✑ Network traffic spikes when the space is cleared on the laptop.

✑ No browser is open.

Which of the following initial actions and tools would provide the BEST approach to determining what is happening?

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