Invoke-Pre2kSpray

Modified DomainPasswordSpray version to enumerate machine accounts and perform a pre2k password spray.

Example Usage

# Current domain, write output to file
Invoke-Pre2kSpray -OutFile valid-creds.txt

# Specify domain, disable confirmation prompt
Invoke-Pre2kSpray -Domain test.local -Force

# Filter out accounts with pwdlastset in the last 30 days, to speed things up. Those are probably normal machine accounts that rotate their passwords
Invoke-Pre2kSpray -Filter

# Try with an empty password
Invoke-Pre2kSpray -NoPass

References / Credits

• https://github.com/dafthack/DomainPasswordSpray
• https://www.trustedsec.com/blog/diving-into-pre-created-computer-accounts/
• @garrfoster for pointing out to me that the authentication via NTLM was wrong, which lead to false negatives and for providing me with the correct kerberos authentication code :)