Bitlocker: TPM + Pre-Boot Pin - Printable Version +- hashcat Forum (https://hashcat.net/forum) +-- Forum: Support (https://hashcat.net/forum/forum-3.html) +--- Forum: hashcat (https://hashcat.net/forum/forum-45.html) +--- Thread: Bitlocker: TPM + Pre-Boot Pin (/thread-10273.html)

Bitlocker: TPM + Pre-Boot Pin - Sondero - 08-16-2021 Hello, is there any possible way to attack a device with (Bitlocker) TPM+Preboot-Pin encryption ? I took a physical image, but bitlocker2john doesnt give me a hash, and Passware also wouldn’t give me the option for a wordlist attack (only with memory dump, but i dont habe a dump or decrypted hiberfile.sys) Thank Best regrads Sondero RE: Bitlocker: TPM + Pre-Boot Pin - Lars - 08-16-2021 There's no human entered password-hash to attack as the encryption keys are stored in the TPM and are released with the PIN. RE: Bitlocker: TPM + Pre-Boot Pin - DanielG - 08-16-2021 You probably need a hardware attack like described on https://dolosgroup.io/blog/2021/7/9/from-stolen-laptop-to-inside-the-company-network RE: Bitlocker: TPM + Pre-Boot Pin - Sondero - 08-16-2021 If i understand it correct, this attack only works if there is no pre-autentification needed RE: Bitlocker: TPM + Pre-Boot Pin - DanielG - 08-17-2021 Ah I see, you are right, the PIN requirement prevents this attack.