NtObjectManager.psm1
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# Copyright 2016, 2017 Google Inc. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. Import-Module "$PSScriptRoot\NtObjectManager.dll" <# .SYNOPSIS Get a list of ALPC Ports that can be opened by a specified token. .DESCRIPTION This cmdlet checks for all ALPC ports on the system and tries to determine if one or more specified tokens can connect to them. If no tokens are specified then the current process token is used. This function searches handles for existing ALPC Port servers as you can't directly open the server object and just connecting might show inconsistent results. .PARAMETER ProcessIds Specify a list of process IDs to open for their tokens. .PARAMETER ProcessNames Specify a list of process names to open for their tokens. .PARAMETER ProcessCommandLines Specify a list of command lines to filter on find for the process tokens. .PARAMETER Tokens Specify a list token objects. .PARAMETER Processes Specify a list process objects to use for their tokens. .INPUTS None .OUTPUTS NtObjectManager.AccessCheckResult .NOTES For best results run this function as an administrator with SeDebugPrivilege available. .EXAMPLE Get-AccessibleAlpcPort Get all ALPC Ports connectable by the current token. .EXAMPLE Get-AccessibleAlpcPort -ProcessIds 1234,5678 Get all ALPC Ports connectable by the process tokens of PIDs 1234 and 5678 #> function Get-AccessibleAlpcPort { Param( [Int32[]]$ProcessIds, [string[]]$ProcessNames, [string[]]$ProcessCommandLines, [NtApiDotNet.NtToken[]]$Tokens, [NtApiDotNet.NtProcess[]]$Processes ) $access = Get-NtAccessMask -AlpcPortAccess Connect -ToGenericAccess Get-AccessibleObject -FromHandles -ProcessIds $ProcessIds -ProcessNames $ProcessNames ` -ProcessCommandLines $ProcessCommandLines -Tokens $Tokens -Processes $Processes -TypeFilter "ALPC Port" -AccessRights $access } <# .SYNOPSIS Set the state of a token's privileges. .DESCRIPTION This cmdlet will set the state of a token's privileges. This is commonly used to enable debug/backup privileges to perform privileged actions. If no token is specified then the current process token is used. .PARAMETER Privileges A list of privileges to set their state. .PARAMETER Token Optional token object to use to set privileges. Must be accesible for AdjustPrivileges right. .PARAMETER Attributes Specify the actual attributes to set. Defaults to Enabled. .INPUTS None .OUTPUTS List of TokenPrivilege values indicating the new state of all privileges successfully modified. .EXAMPLE Set-NtTokenPrivilege SeDebugPrivilege Enable SeDebugPrivilege on the current process token .EXAMPLE Set-NtTokenPrivilege SeDebugPrivilege -Attributes Disabled Disable SeDebugPrivilege on the current process token .EXAMPLE Set-NtTokenPrivilege SeBackupPrivilege, SeRestorePrivilege -Token $token Enable SeBackupPrivilege and SeRestorePrivilege on an explicit token object. #> function Set-NtTokenPrivilege { Param( [Parameter(Mandatory=$true, Position=0)] [NtApiDotNet.TokenPrivilegeValue[]]$Privileges, [NtApiDotNet.NtToken]$Token, [NtApiDotNet.PrivilegeAttributes]$Attributes = "Enabled" ) if ($Token -eq $null) { $Token = Get-NtToken -Primary } else { $Token = $Token.Duplicate() } Use-NtObject($Token) { $result = @() foreach($priv in $Privileges) { if ($Token.SetPrivilege($priv, $Attributes)) { $result += @($Token.GetPrivilege($priv)) } } return $result } } <# .SYNOPSIS Set the integrity level of a token. .DESCRIPTION This cmdlet will set the integrity level of a token. If you want to raise the level you must have SeTcbPrivilege otherwise you can only lower it. If no token is specified then the current process token is used. .PARAMETER IntegrityLevel A list of privileges to set their state. .PARAMETER Token Optional token object to use to set privileges. Must be accesible for AdjustDefault right. .PARAMETER Adjustment Increment or decrement the IL level from the base specified in -IntegrityLevel. .INPUTS None .EXAMPLE Set-NtTokenPrivilege SeDebugPrivilege Enable SeDebugPrivilege on the current process token .EXAMPLE Set-NtTokenPrivilege SeDebugPrivilege -Attributes Disabled Disable SeDebugPrivilege on the current process token .EXAMPLE Set-NtTokenPrivilege SeBackupPrivilege, SeRestorePrivilege -Token $token Enable SeBackupPrivilege and SeRestorePrivilege on an explicit token object. #> function Set-NtTokenIntegrityLevel { Param( [Parameter(Mandatory=$true, Position=0)] [NtApiDotNet.TokenIntegrityLevel[]]$IntegrityLevel, [NtApiDotNet.NtToken]$Token, [Int32]$Adjustment = 0 ) if ($Token -eq $null) { $Token = Get-NtToken -Primary } else { $Token = $Token.Duplicate() } $il_raw = $IntegrityLevel.ToInt32($null) + $Adjustment Use-NtObject($Token) { $Token.SetIntegrityLevelRaw($il_raw) | Out-Null } } <# .SYNOPSIS Create a kernel crash dump. .DESCRIPTION This cmdlet will use the NtSystemDebugControl API to create a system kernel crash dump with specified options. .PARAMETER Path The NT native path to the crash dump file to create .PARAMETER Flags Optional flags to control what to dump .PARAMETER PageFlags Optional flags to control what additional pages to dump .INPUTS None .EXAMPLE New-NtKernelCrashDump \??\C:\memory.dmp Create a new crash dump at c:\memory.dmp .EXAMPLE New-NtKernelCrashDump \??\C:\memory.dmp -Flags IncludeUserSpaceMemoryPages Create a new crash dump at c:\memory.dmp including user memory pages. #> function New-NtKernelCrashDump { Param( [Parameter(Mandatory=$true, Position=0)] [string]$Path, [NtApiDotNet.SystemDebugKernelDumpControlFlags]$Flags = 0, [NtApiDotNet.SystemDebugKernelDumpPageControlFlags]$PageFlags = 0 ) [NtApiDotNet.NtSystemInfo]::CreateKernelDump($Path, $Flags, $PageFlags) } <# .SYNOPSIS Get security mitigations and token security information for processes. .DESCRIPTION This cmdlet will get the mitigation policies for all processes it can access for QueryInformation rights. #> function Get-NtProcessMitigations { Set-NtTokenPrivilege SeDebugPrivilege | Out-Null Use-NtObject($ps = Get-NtProcess -Access QueryInformation) { foreach($p in $ps) { try { Write-Output $p.Mitigations } catch { } } } } <# .SYNOPSIS Create a new object attributes structure. .DESCRIPTION This cmdlet creates a new object attributes structure based on its parameters. Note you should dispose of the object attributes afterwards. .PARAMETER Name Optional NT native name for the object .PARAMETER Root Optional NT object root for relative paths .PARAMETER Attributes Optional object attributes flags .PARAMETER SecurityQualityOfService Optional security quality of service flags .PARAMETER SecurityDescriptor Optional security descriptor .PARAMETER Sddl Optional security descriptor in SDDL format .INPUTS None .EXAMPLE New-NtObjectAttributes \??\c:\windows Create a new object attributes for \??\C:\windows #> function New-NtObjectAttributes { Param( [Parameter(Position=0)] [string]$Name, [NtApiDotNet.NtObject]$Root, [NtApiDotNet.AttributeFlags]$Attributes = "None", [NtApiDotNet.SecurityQualityOfService]$SecurityQualityOfService, [NtApiDotNet.SecurityDescriptor]$SecurityDescriptor, [string]$Sddl ) $sd = $SecurityDescriptor if ($Sddl -ne $null) { $sd = New-NtSecurityDescriptor -Sddl $Sddl } [NtApiDotNet.ObjectAttributes]::new($Name, $Attributes, [NtApiDotNet.NtObject]$Root, $SecurityQualityOfService, $sd) } <# .SYNOPSIS Create a new security quality of service structure. .DESCRIPTION This cmdlet creates a new security quality of service structure structure based on its parameters .PARAMETER ImpersonationLevel The impersonation level, must be specified. .PARAMETER ContextTrackingMode Optional tracking mode, defaults to static tracking .PARAMETER EffectiveOnly Optional flag to specify if only the effective rights should be impersonated .INPUTS None #> function New-NtSecurityQualityOfService { Param( [Parameter(Mandatory=$true, Position=0)] [NtApiDotNet.SecurityImpersonationLevel]$ImpersonationLevel, [NtApiDotNet.SecurityContextTrackingMode]$ContextTrackingMode = "Static", [switch]$EffectiveOnly ) [NtApiDotNet.SecurityQualityOfService]::new($ImpersonationLevel, $ContextTrackingMode, $EffectiveOnly) } <# .SYNOPSIS Gets a list of system environment values .DESCRIPTION This cmdlet gets the list of system environment values. Note that this isn't the same as environment variables, these are kernel values which represent current system state. .PARAMETER Name The name of the system environment value to get. .INPUTS None #> function Get-NtSystemEnvironmentValue { Param( [Parameter(Position=0)] [string]$Name = [System.Management.Automation.Language.NullString]::Value ) Set-NtTokenPrivilege SeSystemEnvironmentPrivilege | Out-Null $values = [NtApiDotNet.NtSystemInfo]::QuerySystemEnvironmentValueNamesAndValues() if ($Name -eq [string]::Empty) { $values } else { $values | Where-Object Name -eq $Name } } <# .SYNOPSIS Get a license value by name. .DESCRIPTION This cmdlet gets a license value by name .PARAMETER Name The name of the license value to get. .INPUTS None .OUTPUTS NtApiDotNet.NtKeyValue #> function Get-NtLicenseValue { Param( [Parameter(Mandatory=$true, Position=0)] [string]$Name ) [NtApiDotNet.NtKey]::QueryLicenseValue($Name) } <# .SYNOPSIS Create a new Win32 process configuration. .DESCRIPTION This cmdlet creates a new Win32 process configuration which you can then pass to New-Win32Process. .PARAMETER CommandLine The command line of the process to create. .PARAMETER ApplicationName Optional path to the application executable. .PARAMETER ProcessSecurityDescriptor Optional security descriptor for the process. .PARAMETER ThreadSecurityDescriptor Optional security descriptor for the initial thread. .PARAMETER ParentProess Optional process to act as the parent, needs CreateProcess access to succeed. .PARAMETER CreationFlags Flags to affect process creation. .PARAMETER TerminateOnDispose Specify switch to terminate the process when the Win32Process object is disposed. .PARAMETER Environment Optional environment block for the new process. .PARAMETER CurrentDirectory Optional current directory for the new process. .PARAMETER Desktop Optional desktop for the new process. .PARAMETER $Title Optional title for the new process. .PARAMETER InheritHandles Switch to specify whether to inherit handles into new process. .PARAMETER InheritProcessHandle Switch to specify whether the process handle is inheritable .PARAMETER InheritThreadHandle Switch to specify whether the thread handle is inheritable. .PARAMETER MitigationOptions Specify optional mitigation options. .PARAMETER Win32kFilterFlags Specify filter flags for Win32k filter .PARAMETER Win32kFilterLevel Specify the filter level for the Win32k filter. .INPUTS None .OUTPUTS SandboxAnalysisUtils.Win32ProcessConfig #> function New-Win32ProcessConfig { Param( [Parameter(Mandatory=$true, Position=0)] [string]$CommandLine, [string]$ApplicationName, [NtApiDotNet.SecurityDescriptor]$ProcessSecurityDescriptor, [NtApiDotNet.SecurityDescriptor]$ThreadSecurityDescriptor, [NtApiDotNet.NtProcess]$ParentProcess, [SandboxAnalysisUtils.CreateProcessFlags]$CreationFlags = 0, [SandboxAnalysisUtils.ProcessMitigationOptions]$MitigationOptions = 0, [bool]$TerminateOnDispose, [byte[]]$Environment, [string]$CurrentDirectory, [string]$Desktop, [string]$Title, [bool]$InheritHandles, [bool]$InheritProcessHandle, [bool]$InheritThreadHandle, [SandboxAnalysisUtils.Win32kFilterFlags]$Win32kFilterFlags = 0, [int]$Win32kFilterLevel = 0 ) $config = New-Object SandboxAnalysisUtils.Win32ProcessConfig $config.CommandLine = $CommandLine if (-not [string]::IsNullOrEmpty($ApplicationName)) { $config.ApplicationName = $ApplicationName } $config.ProcessSecurityDescriptor = $ProcessSecurityDescriptor $config.ThreadSecurityDescriptor = $ThreadSecurityDescriptor $config.ParentProcess = $ParentProcess $config.CreationFlags = $CreationFlags $config.TerminateOnDispose = $TerminateOnDispose $config.Environment = $Environment if (-not [string]::IsNullOrEmpty($Desktop)) { $config.Desktop = $Desktop } if (-not [string]::IsNullOrEmpty($CurrentDirectory)) { $config.CurrentDirectory = $CurrentDirectory } if (-not [string]::IsNullOrEmpty($Title)) { $config.Title = $Title } $config.InheritHandles = $InheritHandles $config.InheritProcessHandle = $InheritProcessHandle $config.InheritThreadHandle = $InheritThreadHandle $config.MitigationOptions = $MitigationOptions $config.Win32kFilterFlags = $Win32kFilterFlags $config.Win32kFilterLevel = $Win32kFilterLevel return $config } <# .SYNOPSIS Create a new Win32 process. .DESCRIPTION This cmdlet creates a new Win32 process with an optional security descriptor. .PARAMETER CommandLine The command line of the process to create. .PARAMETER ApplicationName Optional path to the application executable. .PARAMETER ProcessSecurityDescriptor Optional security descriptor for the process. .PARAMETER ThreadSecurityDescriptor Optional security descriptor for the initial thread. .PARAMETER ParentProess Optional process to act as the parent, needs CreateProcess access to succeed. .PARAMETER CreationFlags Flags to affect process creation. .PARAMETER TerminateOnDispose Specify switch to terminate the process when the Win32Process object is disposed. .PARAMETER Environment Optional environment block for the new process. .PARAMETER CurrentDirectory Optional current directory for the new process. .PARAMETER Desktop Optional desktop for the new process. .PARAMETER $Title Optional title for the new process. .PARAMETER InheritHandles Switch to specify whether to inherit handles into new process. .PARAMETER InheritProcessHandle Switch to specify whether the process handle is inheritable .PARAMETER InheritThreadHandle Switch to specify whether the thread handle is inheritable. .PARAMETER MitigationOptions Specify optional mitigation options. .PARAMETER Token Specify an explicit token to create the new process with. .INPUTS None .OUTPUTS SandboxAnalysisUtils.Win32Process #> function New-Win32Process { [CmdletBinding(DefaultParameterSetName = "FromArgs")] Param( [Parameter(Mandatory=$true, Position=0, ParameterSetName = "FromArgs")] [string]$CommandLine, [Parameter(ParameterSetName = "FromArgs")] [string]$ApplicationName, [Parameter(ParameterSetName = "FromArgs")] [NtApiDotNet.SecurityDescriptor]$ProcessSecurityDescriptor, [Parameter(ParameterSetName = "FromArgs")] [NtApiDotNet.SecurityDescriptor]$ThreadSecurityDescriptor, [Parameter(ParameterSetName = "FromArgs")] [NtApiDotNet.NtProcess]$ParentProcess, [Parameter(ParameterSetName = "FromArgs")] [SandboxAnalysisUtils.CreateProcessFlags]$CreationFlags = 0, [Parameter(ParameterSetName = "FromArgs")] [SandboxAnalysisUtils.ProcessMitigationOptions]$MitigationOptions = 0, [Parameter(ParameterSetName = "FromArgs")] [switch]$TerminateOnDispose, [Parameter(ParameterSetName = "FromArgs")] [byte[]]$Environment, [Parameter(ParameterSetName = "FromArgs")] [string]$CurrentDirectory, [Parameter(ParameterSetName = "FromArgs")] [string]$Desktop, [Parameter(ParameterSetName = "FromArgs")] [string]$Title, [Parameter(ParameterSetName = "FromArgs")] [switch]$InheritHandles, [Parameter(ParameterSetName = "FromArgs")] [switch]$InheritProcessHandle, [Parameter(ParameterSetName = "FromArgs")] [switch]$InheritThreadHandle, [Parameter(ParameterSetName = "FromArgs")] [NtApiDotNet.NtToken]$Token, [Parameter(Mandatory=$true, Position=0, ParameterSetName = "FromConfig")] [SandboxAnalysisUtils.Win32ProcessConfig]$Config ) if ($null -eq $Config) { $Config = New-Win32ProcessConfig $CommandLine -ApplicationName $ApplicationName ` -ProcessSecurityDescriptor $ProcessSecurityDescriptor -ThreadSecurityDescriptor $ThreadSecurityDescriptor ` -ParentProcess $ParentProcess -CreationFlags $CreationFlags -TerminateOnDispose $TerminateOnDispose ` -Environment $Environment -CurrentDirectory $CurrentDirectory -Desktop $Desktop -Title $Title ` -InheritHandles $InheritHandles -InheritProcessHandle $InheritProcessHandle -InheritThreadHandle $InheritThreadHandle ` -MitigationOptions $MitigationOptions } if ($null -eq $Token) { [SandboxAnalysisUtils.Win32Process]::CreateProcess($config) } else { [SandboxAnalysisUtils.Win32Process]::CreateProcessAsUser($Token, $config) } [SandboxAnalysisUtils.Win32Process]::CreateProcess($Config) } <# .SYNOPSIS Create a new EA buffer object for use with files. .DESCRIPTION This cmdlet creates a new extended attributes buffer object to set on file objects with the SetEa method or with New-NtFile. .PARAMETER Entries Optional Hashtable containing entries to initialize into the EA buffer. .PARAMETER $ExistingBuffer An existing buffer to initialize the new buffer from. .INPUTS None .OUTPUTS NtApiDotNet.EaBuffer .EXAMPLE New-NtEaBuffer Create a new empty EaBuffer object .EXAMPLE New-NtEaBuffer @{ INTENTRY = 1234; STRENTRY = "ABC"; BYTEENTRY = [byte[]]@(1,2,3) } Create a new EaBuffer object initialized with three separate entries. #> function New-NtEaBuffer { [CmdletBinding(DefaultParameterSetName = "FromEntries")] Param( [Parameter(ParameterSetName = "FromEntries", Position = 0)] [Hashtable]$Entries = @{}, [Parameter(ParameterSetName = "FromExisting", Position = 0)] [NtApiDotnet.Eabuffer]$ExistingBuffer ) if ($null -eq $ExistingBuffer) { $ea_buffer = New-Object NtApiDotNet.EaBuffer foreach($entry in $Entries.Keys) { $ea_buffer.AddEntry($entry, $Entries.Item($entry), 0) } return $ea_buffer } else { return New-Object NtApiDotNet.EaBuffer -ArgumentList $ExistingBuffer } } <# .SYNOPSIS Create a new image section based on an existing file. .DESCRIPTION This cmdlet creates an image section based on an existing file. .PARAMETER File A file object to an image file to create. .INPUTS None .OUTPUTS NtApiDotNet.NtSection .EXAMPLE New-NtEaBuffer Create a new empty EaBuffer object .EXAMPLE New-NtEaBuffer @{ INTENTRY = 1234; STRENTRY = "ABC"; BYTEENTRY = [byte[]]@(1,2,3) } Create a new EaBuffer object initialized with three separate entries. #> function New-NtSectionImage { [CmdletBinding(DefaultParameterSetName = "FromFile")] Param( [Parameter(Position = 0, ParameterSetName = "FromFile", Mandatory = $true)] [NtApiDotNet.NtFile]$File, [Parameter(Position = 0, ParameterSetName = "FromPath", Mandatory = $true)] [string]$Path ) if ($null -eq $File) { Use-NtObject($new_file = Get-NtFile -Path $Path -Share Read,Delete -Access GenericExecute) { return [NtApiDotNet.NtSection]::CreateImageSection($new_file) } } else { return [NtApiDotNet.NtSection]::CreateImageSection($File) } } <# .SYNOPSIS Opens an impersonation token from a process or thread using NtImpersonateThread .DESCRIPTION This cmdlet opens an impersonation token from a process using NtImpersonateThread. While SeDebugPrivilege allows you to bypass the security of processes and threads it doesn't mean you can open the primary token. This cmdlet allows you to get past that by getting a handle to the first thread and then impersonating it, as long as the thread isn't impersonating something else you'll get back a copy of the primary token. .PARAMETER ProcessId A process to open to get the token from. .PARAMETER ThreadId A thread to open to get the token from. .PARAMETER Access Access rights for the opened token. .INPUTS None .OUTPUTS NtApiDotNet.NtToken .EXAMPLE Get-NtTokenFromProcess -ProcessId 1234 Gets token from process ID 1234. .EXAMPLE Get-NtTokenFromProcess -ProcessId 1234 -Access Query Gets token from process ID 1234 with only Query access. .EXAMPLE Get-NtTokenFromProcess -ThreadId 1234 Gets token from process ID 1234. #> function Get-NtTokenFromProcess { [CmdletBinding(DefaultParameterSetName = "FromProcess")] Param( [Parameter(Position = 0, ParameterSetName = "FromProcess", Mandatory = $true)] [ValidateScript({$_ -ge 0})] [int]$ProcessId = -1, [Parameter(ParameterSetName = "FromThread", Mandatory = $true)] [ValidateScript({$_ -ge 0})] [int]$ThreadId = -1, [NtApiDotNet.TokenAccessRights]$Access = "MaximumAllowed" ) Set-NtTokenPrivilege SeDebugPrivilege | Out-Null $t = $null try { if (-1 -ne $ProcessId) { $t = Use-NtObject($p = Get-NtProcess -ProcessId $ProcessId) { $p.GetFirstThread("DirectImpersonation") } } else { $t = Get-NtThread -ThreadId $ThreadId -Access DirectImpersonation } $current = Get-NtThread -Current -PseudoHandle Use-NtObject($t, $current.ImpersonateThread($t)) { Get-NtToken -Impersonation -Thread $current -Access $Access } } catch { Write-Error $_ } } <# .SYNOPSIS Get process primary token. Here for legacy reasons, use Get-NtToken -Primary. #> function Get-NtTokenPrimary { Get-NtToken -Primary @args } <# .SYNOPSIS Get thread impersonation token. Here for legacy reasons, use Get-NtToken -Impersonation. #> function Get-NtTokenThread { Get-NtToken -Impersonation @args } <# .SYNOPSIS Get thread effective token. Here for legacy reasons, use Get-NtToken -Effective. #> function Get-NtTokenEffective { Get-NtToken -Effective @args } |