Thread: Pls help me

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  1. #1
    Darko222's Avatar
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    Pls help me

    I just made a dll injector but it doesn't seem to work. Where did i go wrong?? Ty.
    Code:
    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)
        Dim DLLFileName As String
        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
    
    
        Dim ExeName As String = IO.Path.GetFileNameWithoutExtension(Application.ExecutablePath)
        Private Sub Inject()
            On Error GoTo 1 ' If error occurs, app will close without any error messages
            Timer1.Stop()
            Dim TargetProcess As Process() = Process.GetProcessesByName(TextBox1.Text)
            TargetProcessHandle = OpenProcess(PROCESS_CREATE_THREAD Or PROCESS_VM_OPERATION Or PROCESS_VM_WRITE, False, TargetProcess(0).Id)
            pszLibFileRemote = OpenFileDialog1.FileName
            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)
    1:      Me.Show()
        End Sub
    
        Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
            DLLs.Name = "DLLs"
            Button1.Text = "Browse"
    
            Timer1.Interval = 50
            Timer1.Start()
        End Sub
    
        Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
            OpenFileDialog1.Filter = "DLL (*.dll) |*.dll"
            OpenFileDialog1.ShowDialog()
        End Sub
    
        Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
            For i As Integer = (DLLs.SelectedItems.Count - 1) To 0 Step -1
                DLLs.Items.Remove(DLLs.SelectedItems(i))
            Next
        End Sub
    
        Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
            DLLs.Items.Clear()
        End Sub
    
        Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
            If IO.File.Exists(OpenFileDialog1.FileName) Then
                Dim TargetProcess As Process() = Process.GetProcessesByName(TextBox1.Text)
                If TargetProcess.Length = 0 Then
    
                    Me.TextBox2.Text = ("Waiting for " + TextBox1.Text + ".exe")
                Else
                    Timer1.Stop()
                    Me.TextBox2.Text = "Successfully Injected!"
                    Call Inject()
                    If CheckBox1.Checked = True Then
                        End
                    Else
                    End If
                End If
            Else
            End If
        End Sub
    
        Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
            If IO.File.Exists(OpenFileDialog1.FileName) Then
                Dim TargetProcess As Process() = Process.GetProcessesByName(TextBox1.Text)
                If TargetProcess.Length = 0 Then
    
                    Me.TextBox2.Text = ("Waiting for " + TextBox1.Text + ".exe")
                Else
                    Timer1.Stop()
                    MsgBox("Successfully Injected!", MsgBoxStyle.Information)
                    Me.TextBox2.Text = "Successfully Injected!"
                    Call Inject()
                    If CheckBox1.Checked = True Then
                        End
                    Else
                    End If
                End If
            Else
            End If
        End Sub
    
        Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles OpenFileDialog1.FileOk
            Dim FileName As String
            FileName = OpenFileDialog1.FileName.Substring(OpenFileDialog1.FileName.LastIndexOf("\"))
            Dim DllFileName As String = FileName.Replace("\", "")
            Me.DLLs.Items.Add(DllFileName)
        End Sub
    
        Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
            Me.Close()
        End Sub
    
        Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
            Button4.Enabled = True
            Timer1.Enabled = False
        End Sub
    
        Private Sub RadioButton2_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton2.CheckedChanged
            Button4.Enabled = False
            Timer1.Enabled = True
        End Sub
    
        Private Sub Label5_Click(sender As Object, e As EventArgs)
    
        End Sub
    
        Private Sub Label5_Click_1(sender As Object, e As EventArgs)
    
        End Sub
    
        Private Sub TextBox2_TextChanged(sender As Object, e As EventArgs)
    
        End Sub
    End Class

  2. #2
    H!nt's Avatar
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    Help right here

    Wrong category.
    All opinions are my own.






  3. #3
    Darko222's Avatar
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    Ok close pls

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