[Tutorial] VB Injection Source

[Cgallagher]

I would like to know a good source code on how to make a DLL injector
if you post the code = +1 Thanks

[d0h!]

here ya go
there are different ways to inject a dll.

overall:
Loadlibrary syntax
[code=vb]HMODULE WINAPI LoadLibrary(
__in LPCTSTR lpFileName
);
[/code]

FreeLibrary syntax
[code=vb]BOOL WINAPI FreeLibrary(
__in HMODULE hModule
);
[/code]

1.
[code=vb]Public Class Form1

Private TargetProcessHandle As Integer
Private pfnStartAddr As Integer
Private pszLibFileRemote As String
Private TargetBufferSize As Integer

Public Const PROCESS_VM_READ = &H10
Public Const TH32CS_SNAPPROCESS = &H2
Public Const MEM_COMMIT = 4096
Public Const PAGE_READWRITE = 4
Public Const PROCESS_CREATE_THREAD = (&H2)
Public Const PROCESS_VM_OPERATION = (&H8)
Public Const PROCESS_VM_WRITE = (&H20)

Public Declare Function ReadProcessMemory Lib "kernel32" ( _
ByVal hProcess As Integer, _
ByVal lpBaseAddress As Integer, _
ByVal lpBuffer As String, _
ByVal nSize As Integer, _
ByRef lpNumberOfBytesWritten As Integer) As Integer

Public Declare Function LoadLibrary Lib "kernel32" Alias "LoadLibraryA" ( _
ByVal lpLibFileName As String) As Integer

Public Declare Function VirtualAllocEx Lib "kernel32" ( _
ByVal hProcess As Integer, _
ByVal lpAddress As Integer, _
ByVal dwSize As Integer, _
ByVal flAllocationType As Integer, _
ByVal flProtect As Integer) As Integer

Public Declare Function WriteProcessMemory Lib "kernel32" ( _
ByVal hProcess As Integer, _
ByVal lpBaseAddress As Integer, _
ByVal lpBuffer As String, _
ByVal nSize As Integer, _
ByRef lpNumberOfBytesWritten As Integer) As Integer

Public Declare Function GetProcAddress Lib "kernel32" ( _
ByVal hModule As Integer, ByVal lpProcName As String) As Integer

Private Declare Function GetModuleHandle Lib "Kernel32" Alias "GetModuleHandleA" ( _
ByVal lpModuleName As String) As Integer

Public Declare Function CreateRemoteThread Lib "kernel32" ( _
ByVal hProcess As Integer, _
ByVal lpThreadAttributes As Integer, _
ByVal dwStackSize As Integer, _
ByVal lpStartAddress As Integer, _
ByVal lpParameter As Integer, _
ByVal dwCreationFlags As Integer, _
ByRef lpThreadId As Integer) As Integer

Public Declare Function OpenProcess Lib "kernel32" ( _
ByVal dwDesiredAccess As Integer, _
ByVal bInheritHandle As Integer, _
ByVal dwProcessId As Integer) As Integer

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String) As Integer

Private Declare Function CloseHandle Lib "kernel32" Alias "CloseHandleA" ( _
ByVal hObject As Integer) As Integer




Private Sub Inject()


Timer1.Stop()
Dim TargetProcess As Process() = Process.GetProcessesByName("processname without .exe")
TargetProcessHandle = OpenProcess(PROCESS_CREATE_THREAD Or PROCESS_VM_OPERATION Or PROCESS_VM_WRITE, False, TargetProcess(0).Id)
pszLibFileRemote = "path to the .dll"
pfnStartAddr = GetProcAddress(GetModuleHandle("Kernel32"), "LoadLibraryA")
TargetBufferSize = 1 + Len(pszLibFileRemote)
Dim Rtn As Integer
Dim LoadLibParamAdr As Integer
LoadLibParamAdr = VirtualAllocEx(TargetProcessHandle, 0, TargetBufferSize, MEM_COMMIT, PAGE_READWRITE)
Rtn = WriteProcessMemory(TargetProcessHandle, LoadLibParamAdr, pszLibFileRemote, TargetBufferSize, 0)
CreateRemoteThread(TargetProcessHandle, 0, 0, pfnStartAddr, LoadLibParamAdr, 0, 0)
CloseHandle(TargetProcessHandle)

End Sub

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If IO.File.Exists("path to the .dll") Then
Dim TargetProcess As Process() = Process.GetProcessesByName("processname without .exe")
If TargetProcess.Length = 0 Then

Else
Timer1.Stop()
Call Inject()
End If
Else
Timer1.Stop()
MsgBox(".Dll not found.")

End If
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Timer1.Interval = 50
Timer1.Start()
End Sub
End Class[/code]

2. the attachment

[SuperNovaAO]

CreateRemoteThread with the LoadLibraryA function is the essential part.

[Cgallagher]

Thanks doh
/Thanked

I'll dl when I'm back on my pc