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Certified Ethical Hacker (CEH) Practice Question

During a red-team engagement you obtain a 90-second window of physical access to an active Windows 10 laptop that uses BitLocker in its default TPM-only configuration and has not yet been put to sleep. You want to access the disk contents later, after the machine is shut down. Which technique offers the best chance of recovering the BitLocker volume master key under these conditions?

  • Put the laptop into hibernation, copy hiberfil.sys, and extract plaintext data from the file.

  • Install a malicious UEFI bootloader that records credentials at the next startup.

  • Clone the encrypted disk and launch a GPU-accelerated brute-force attack against the BitLocker header offline.

  • Perform a cold boot attack by cutting power and immediately dumping the laptop's RAM to capture residual BitLocker keys.

Certified Ethical Hacker (CEH)
Cryptography
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