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30 March, 2010

A Port Scanner in VB

port


A small but effective tool (if you know the right way to use it..you might do wonders..)


——————–

you need:


2 textboxes

1 listbox

3 commandbuttons

1 timer

1 winsock control

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Private Sub Command1_Click()
Timer1.Enabled = True
End Sub

Private Sub Command2_Click()
Timer1.Enabled = False
Text2.Text = "0"
End Sub

Private Sub Command3_Click()
List1.Clear
End Sub

Private Sub Timer1_Timer()
On Error Resume Next
Winsock1.Close
Text2.Text = Int(Text2.Text) + 1
Winsock1.RemoteHost = Text1.Text
Winsock1.RemotePort = Text2.Text
Winsock1.Connect
End Sub

Private Sub Winsock1_Connect()
List1.AddItem Winsock1.RemotePort & " is open!"
End Sub



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Explanation:


text1 = IP to scan

text2 = starting port

list1 = list where all open ports are shown

command1 = start

command2 = stop and reset

command3 = clear port list

timer1 = will make the winsock control to try ports

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