An operator has compromised an Active Directory domain and wants to establish persistence using a Golden Ticket. What critical piece of information from the domain is required to forge this ticket?
The krbtgt hash is the cryptographic secret used to sign all TGTs in the domain.
Why this answer
A Golden Ticket is forged using the KRBTGT account's NTLM hash (or AES keys), which allows the attacker to generate valid Kerberos Ticket Granting Tickets (TGTs) for any user.