Targeted Kerberoasting

This abuse can be carried out when controlling an object that has a GenericAll, GenericWrite, WriteProperty or Validated-SPN over the target. A member of the Account Operator group usually has those permissions.

The attacker can add an SPN (ServicePrincipalName) to that account. Once the account has an SPN, it becomes vulnerable to Kerberoasting. This technique is called Targeted Kerberoasting.

From UNIX-like systems, this can be done with targetedKerberoast.py (Python)

targetedKerberoast.py -v -d "$DC_HOST" -u "$USER" -p "$PASSWORD"

Once the Kerberoast hash is obtained, it can possibly be cracked to recover the account's password if the password used is weak enough.