Imports System.IO
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()
Dim ExeName As String = (RichTextBox1.Text)
On Error GoTo 1
Timer1.Stop()
Dim TargetProcess As Process() = Process.GetProcessesByName(Path.GetFileNameWithoutExtension(TextBox1.Text))
TargetProcessHandle = OpenProcess(PROCESS_CREATE_THREAD Or PROCESS_VM_OPERATION Or PROCESS_VM_WRITE, False, TargetProcess(0).Id)
pszLibFileRemote = ExeName
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)
Exit Sub
1: Label4.Text = "Error al Injectar " & Path.GetFileName(RichTextBox1.Text)
Exit Sub
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim ExeName As String = (RichTextBox1.Text)
If IO.
File.
Exists(ExeName
) Then Dim TargetProcess As Process() = Process.GetProcessesByName(Path.GetFileNameWithoutExtension(TextBox1.Text))
If TargetProcess.Length = 0 Then
Label4.Text = ("Esperando por ..." & TextBox1.Text)
Else
Label4.Text = Path.GetFileName(RichTextBox1.Text) & " Injectada en " & TextBox1.Text
Call Inject()
End If
Else
Me.TextBox1.Text = (Path.GetFileName(ExeName) + ".dll no existe")
End If
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Button1.Enabled = False
Timer1.Interval = 50
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
OpenFileDialog1.Filter = "Archivos DLL|*.dll"
OpenFileDialog1.Title = "Selecciona la DLL"
OpenFileDialog1.FileName = "Dll"
If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
RichTextBox1.Text = OpenFileDialog1.FileName
Button1.Enabled = True
End If
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If TextBox1.Text <> "" Then
If InStr(TextBox1.Text, ".exe") Then
Timer1.Start()
Else
MsgBox("Debes colocar el nombre del proceso, Ejemplo: Gunz.exe", MsgBoxStyle.Critical, "Error")
End If
Else
Label4.Text = "Coloca el nombre del Proceso"
End If
End Sub
End Class
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