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VB.Net Pointer & Offset Issues

 
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ChrisFenix
How do I cheat?
Reputation: 0

Joined: 21 Aug 2013
Posts: 2

PostPosted: Wed Aug 21, 2013 10:56 pm    Post subject: VB.Net Pointer & Offset Issues Reply with quote

Hello there, I'm new to reading and writing memory in VB.Net but the game I am trying to "cheat" is one which kills the connection after something like 30 seconds of Cheat Engine being open. This hasn't been an issue as I still managed to find the Static Pointer I needed for bag weight in said game. (You run slow when you carry too much. Anyway) In cheat engine it works fine. I have my base address (00733564) and my offset (7F) In cheat engine as you can see from the picture. My 2 byte address does it's thing and returns it's value. Here is my code - I'm using the VB.Net module written by Cless which has got me pretty much all the way there apart from i'm reading the wrong address. I've actually somehow managed to get it changing the durability of my armour instead of making my bag weight nothing Razz slight issue hehe. anyway here's the code. Any insight on this would be great. I'm sure it's something simple!


Code:
        Me.Text = ReadPointerInteger("mir2", &H733564, &H7F).ToString()

My code is as simple as that. Within the module this is what can be found -

Code:

'VB.NET Module
'Author : Cless
'How to use Read/Write Pointer
'Example Read
'       Me.Text = ReadPointerInteger(Game exe name, &HPointer,&HOffset).ToString()
'
'       Me.Text = ReadPointerInteger("gta_sa", &HB71A38,&H540).ToString()
'       Or
'       Me.Text = ReadPointerInteger("gta_sa", &HB71A38,&H540,&H544).ToString()
'Example Write
'       WritePointerInteger(Game exe name,&HPointer,Value,&HOffset)
'
'       WritePointerInteger("gta_sa",&HB71A38,1000,&H540)
'       Or
'       WritePointerInteger("gta_sa",&HB71A38,1000,&H540, &H544)

Module Trainer
    Private Declare Function ReadMemoryByte Lib "kernel32" Alias "ReadProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Byte, Optional ByVal Size As Integer = 2, Optional ByRef Bytes As Integer = 0) As Byte
    Private Declare Function ReadMemoryInteger Lib "kernel32" Alias "ReadProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Integer, Optional ByVal Size As Integer = 4, Optional ByRef Bytes As Integer = 0) As Integer
    Private Declare Function ReadMemoryFloat Lib "kernel32" Alias "ReadProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Single, Optional ByVal Size As Integer = 4, Optional ByRef Bytes As Integer = 0) As Single
    Private Declare Function ReadMemoryDouble Lib "kernel32" Alias "ReadProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Double, Optional ByVal Size As Integer = 8, Optional ByRef Bytes As Integer = 0) As Double

    Private Declare Function WriteMemoryByte Lib "kernel32" Alias "WriteProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Byte, Optional ByVal Size As Integer = 2, Optional ByRef Bytes As Integer = 0) As Byte
    Private Declare Function WriteMemoryInteger Lib "kernel32" Alias "WriteProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Integer, Optional ByVal Size As Integer = 4, Optional ByRef Bytes As Integer = 0) As Integer
    Private Declare Function WriteMemoryFloat Lib "kernel32" Alias "WriteProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Single, Optional ByVal Size As Integer = 2, Optional ByRef Bytes As Integer = 0) As Single
    Private Declare Function WriteMemoryDouble Lib "kernel32" Alias "WriteProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Double, Optional ByVal Size As Integer = 2, Optional ByRef Bytes As Integer = 0) As Double

    Public Function ReadByte(ByVal EXENAME As String, ByVal Address As Integer) As Byte
        Dim Value As Byte
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                ReadMemoryByte(Handle, Address, Value)
            End If
        End If
        Return Value
    End Function

    Public Function ReadInteger(ByVal EXENAME As String, ByVal Address As Integer) As Integer
        Dim Value As Integer
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                ReadMemoryInteger(Handle, Address, Value)
            End If
        End If
        Return Value
    End Function

    Public Function ReadFloat(ByVal EXENAME As String, ByVal Address As Integer) As Single
        Dim Value As Single
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                ReadMemoryFloat(Handle, Address, Value)
            End If
        End If
        Return Value
    End Function

    Public Function ReadDouble(ByVal EXENAME As String, ByVal Address As Integer) As Double
        Dim Value As Double
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                ReadMemoryByte(Handle, Address, Value)
            End If
        End If
        Return Value
    End Function

    Public Function ReadPointerByte(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal ParamArray Offset As Integer()) As Byte
        Dim Value As Byte
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                ReadMemoryByte(Handle, Pointer, Value)
            End If
        Else
            MsgBox("can't find process")
        End If
        Return Value
    End Function

    Public Function ReadPointerInteger(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal ParamArray Offset As Integer() ) As Integer
        Dim Value As Integer
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                ReadMemoryInteger(Handle, Pointer, Value)
            End If
        End If
        Return Value
    End Function

    Public Function ReadPointerFloat(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal ParamArray Offset As Integer()) As Single
        Dim Value As Single
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                ReadMemoryFloat(Handle, Pointer, Value)
            End If
        End If
        Return Value
    End Function

    Public Function ReadPointerDouble(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal ParamArray Offset As Integer()) As Double
        Dim Value As Double
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                ReadMemoryDouble(Handle, Pointer, Value)
            End If
        End If
        Return Value
    End Function

    Public Sub WriteByte(ByVal EXENAME As String, ByVal Address As Integer, ByVal Value As Byte)
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                WriteMemoryByte(Handle, Address, Value)
            End If
        End If
    End Sub

    Public Sub WriteInteger(ByVal EXENAME As String, ByVal Address As Integer, ByVal Value As Integer)
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                WriteMemoryInteger(Handle, Address, Value)
            End If
        End If
    End Sub

    Public Sub WriteFloat(ByVal EXENAME As String, ByVal Address As Integer, ByVal Value As Single)
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                WriteMemoryFloat(Handle, Address, Value)
            End If
        End If
    End Sub

    Public Sub WriteDouble(ByVal EXENAME As String, ByVal Address As Integer, ByVal Value As Double)
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                WriteMemoryDouble(Handle, Address, Value)
            End If
        End If
    End Sub

    Public Sub WritePointerByte(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal Value As Byte, ByVal ParamArray Offset As Integer())
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                WriteMemoryByte(Handle, Pointer, Value)
            End If
        End If
    End Sub

    Public Sub WritePointerInteger(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal Value As Integer, ByVal ParamArray Offset As Integer())
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                WriteMemoryInteger(Handle, Pointer, Value)
            End If
        End If
    End Sub

    Public Sub WritePointerFloat(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal Value As Single, ByVal ParamArray Offset As Integer())
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                WriteMemoryFloat(Handle, Pointer, Value)
            End If
        End If
    End Sub

    Public Sub WritePointerDouble(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal Value As Double, ByVal ParamArray Offset As Integer())
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                WriteMemoryDouble(Handle, Pointer, Value)
            End If
        End If
    End Sub
End Module


I'm aware it's probably overkill posting the whole thing. Thanks for taking the time to read this anyway. Best wishes
Chris


Edit: It has to be that Integer is 4bits in my app and the address is supposed to be two. I tried the dropdown box to 4 and it gave me the same result in CE that I get from my .net app. Am I sending it as the wrong type or something? Sorry to come across as so green but we all start somewhere hehe. Oh also this game is an ex-multiplayer game. the servers have long since been down but the files were released and I like playing around. This game has always been a source for my tinkering ^^



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ChrisFenix
How do I cheat?
Reputation: 0

Joined: 21 Aug 2013
Posts: 2

PostPosted: Thu Aug 22, 2013 1:22 pm    Post subject: Reply with quote

Just to let you all know. I worked it out in the end. I needed to just make a new function and use a short. If anyone would like that then -
Code:
Private Declare Function ReadMemoryShort Lib "kernel32" Alias "ReadProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Short, Optional ByVal Size As Integer = 2, Optional ByRef Bytes As Integer = 0) As Short
Private Declare Function WriteMemoryShort Lib "kernel32" Alias "WriteProcessMemory" (ByVal Handle As Integer, ByVal Address As Integer, ByRef Value As Short, Optional ByVal Size As Integer = 2, Optional ByRef Bytes As Integer = 0) As Short

    Public Function ReadPointerShort(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal ParamArray Offset As Integer()) As Integer
        Dim Value As Integer
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                ReadMemoryShort(Handle, Pointer, Value)
            End If
        End If
        Return Value
    End Function

    Public Sub WritePointerShort(ByVal EXENAME As String, ByVal Pointer As Integer, ByVal Value As Integer, ByVal ParamArray Offset As Integer())
        If Process.GetProcessesByName(EXENAME).Length <> 0 Then
            Dim Handle As Integer = Process.GetProcessesByName(EXENAME)(0).Handle
            If Handle <> 0 Then
                For Each I As Integer In Offset
                    ReadMemoryInteger(Handle, Pointer, Pointer)
                    Pointer += I
                Next
                WriteMemoryShort(Handle, Pointer, Value)
            End If
        End If
    End Sub


now I just need to figure out how to "freeze" this value and to stop it from updating every time I pick something new up. Thanks for reading.

Kind regards
Chris

Edit: I've managaed to just do this using a timer for the moment, checking for a change in the address and re-poping it accordingly. I know I could NOP it but I have little to no experience with NOPs plus I know this pointer is used for many other values other than bag weight so I can't really make it do nothing. I did try to NOP the "dynamic" memory address which seemed to work perfectly (In cheat engine that is as I have no idea how to do such a thing in VB.Net as of yet) I did try to NOP the pointer as a laugh too and let's just say it didn't end well for my game haha. I guess I could get the Dynamic memory address each time using my static pointer + offset and just NOP the dynamic? But how would I use the pointer + offset to actually get the dynamic address each time? I'm still trying to get my head around it. As I said, for now I'm happy with the timer method but it would be much more efficient if I could NOP it. When picking items up while bag weight is over, for a split second it pops back up and slows my character down. Any pointers on this would be great *ba dum tsch*
Thank you, I'll be here all week.
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