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Mass MD5 Hash Changer v1.0

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•RaJ•

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Mass MD5 Hash Changer v1.0

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0911af.png


Download Binary Executable :
Code: 
http://rapidshare.com/files/1205696778/MD5_Hash_Changer_v1.0.rar
Download Source Code (VB.Net) Created with Visual Studio 2008 (Pro) :
Code: 
http://www.mediafire.com/file/dj0hev902k49xkb/MD5Changer_SourceCode%28VB.NET%29.zip
Do Thanks! If You Like The Tool!!
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86 comments
deliteblogger said:
how does it change the files' hash? it modifies file dates?
Click to expand...

Changing Hash is done by minor modification in file, file date or time stamp has nothing to do with md5 Hash m8, it just appends a null char @ end of file!

PHP: 
    Private Function ChangeMD5(ByVal strFile As String) As Boolean

        '// well changing has is quite simple, open file in binary and write a null byte = ChrW(0)
        Try
            Using fs As New FileStream(strFile, FileMode.Open, FileAccess.ReadWrite)
                fs.Position = fs.Length
                Dim tmp() As Byte = Nothing
                Array.Resize(tmp, 1)
                fs.Write(tmp, 0, 1)
                fs.Flush()
                fs.Close()
            End Using
            Return True
        Catch ex As Exception '// well its always a better practise to keep handling error by type, but for this function this will be enough
            Return False
        End Try
    End Function
 
And is a safe method to change MD5 of a file? No CRC errors?

We are speaking about change md5 of rar files only, right?

Thanks for your work.
 
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