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Overview

Any domain user can request TGS ticket for any service with SPN. Ticket encrypted with service account password hash → crack offline.

Find SPNs

PowerView

ldapsearch

Impacket


Request Tickets

Impacket (Linux)

Rubeus (Windows)

PowerView

setspn (Built-in)


Crack

Hashcat

John


Targeted Kerberoasting

Set SPN on user you want to attack (needs GenericAll/GenericWrite).

Quick Reference