A system administration or post-exploitation script to automatically extract the bitlocker recovery keys from a domain.

Features

• Automatically gets the list of all computers from the domain controller's LDAP.
• Multithreaded connections to extract Bitlocker keys from LDAP.
• Iterate on LDAP result pages to get every computer of the domain, no matter the size.

Warning

Please do not store this backup in an online SMB share of the domain. You should prefer to print it and store it physically in a locked safe.

• Export results in JSON with Computer FQDN, Domain, Recovery Key, Volume GUID, Created At and Organizational Units.
• Export results in XLSX with Computer FQDN, Domain, Recovery Key, Volume GUID, Created At and Organizational Units.
• Export results in SQLITE3 with Computer FQDN, Domain, Recovery Key, Volume GUID, Created At and Organizational Units.

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Demonstration from Linux in Python

To extract Bitlocker recovery keys from all the computers of the domain domain.local you can use this command:

./ExtractBitlockerKeys.py -d 'domain.local' -u 'Administrator' -p 'Podalirius123!' --dc-ip 192.168.1.101

You will get the following output:

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Demonstration from Windows in Powershell

To extract Bitlocker recovery keys from all the computers of the domain domain.local you can use this command:

.\ExtractBitlockerKeys.ps1 -dcip 192.168.1.101 -ExportToCSV ./keys.csv -ExportToJSON ./keys.json

You will get the following output:

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Usage

$ ./ExtractBitlockerKeys.py -h
ExtractBitlockerKeys.py v1.1 - by @podalirius_

usage: ExtractBitlockerKeys.py [-h] [-v] [-q] [-t THREADS] [--export-xlsx EXPORT_XLSX] [--export-json EXPORT_JSON] [--export-sqlite EXPORT_SQLITE] --dc-ip ip address [-d DOMAIN] [-u USER]
                               [--no-pass | -p PASSWORD | -H [LMHASH:]NTHASH | --aes-key hex key] [-k]

options:
  -h, --help            show this help message and exit
  -v, --verbose         Verbose mode. (default: False)
  -q, --quiet           Show no information at all.
  -t THREADS, --threads THREADS
                        Number of threads (default: 4).

Output files:
  --export-xlsx EXPORT_XLSX
                        Output XLSX file to store the results in.
  --export-json EXPORT_JSON
                        Output JSON file to store the results in.
  --export-sqlite EXPORT_SQLITE
                        Output SQLITE3 file to store the results in.

Authentication & connection:
  --dc-ip ip address    IP Address of the domain controller or KDC (Key Distribution Center) for Kerberos. If omitted it will use the domain part (FQDN) specified in the identity parameter
  -d DOMAIN, --domain DOMAIN
                        (FQDN) domain to authenticate to
  -u USER, --user USER  user to authenticate with

Credentials:
  --no-pass             Don't ask for password (useful for -k)
  -p PASSWORD, --password PASSWORD
                        Password to authenticate with
  -H [LMHASH:]NTHASH, --hashes [LMHASH:]NTHASH
                        NT/LM hashes, format is LMhash:NThash
  --aes-key hex key     AES key to use for Kerberos Authentication (128 or 256 bits)
  -k, --kerberos        Use Kerberos authentication. Grabs credentials from .ccache file (KRB5CCNAME) based on target parameters. If valid credentials cannot be found, it will use the ones specified in the command line.

Contributing

Pull requests are welcome. Feel free to open an issue if you want to add other features.

References

• https://learn.microsoft.com/en-us/windows/win32/adschema/a-msfve-keypackage
• https://learn.microsoft.com/en-us/windows/win32/adschema/a-msfve-recoveryguid
• https://learn.microsoft.com/en-us/windows/win32/adschema/a-msfve-recoverypassword
• https://learn.microsoft.com/en-us/windows/win32/adschema/a-msfve-volumeguid