/// <summary>
/// Pings specified ComputerNames to identify live systems.
/// </summary>
/// <param name="ComputerNames">ComputerNames to ping.</param>
/// <param name="Timeout">Timeout (in milliseconds) before a ComputerName is considered down.</param>
/// <param name="Threads">Number of threads with which to ping simultaneously</param>
/// <returns></returns>
public static SharpSploitResultList <PingResult> Ping(IList <string> ComputerNames, int Timeout = 250, int Threads = 100)
{
IList <string> pingAddresses = Utilities.ConvertCidrToIPs(ComputerNames).Distinct().ToList();
SharpSploitResultList <PingResult> pingResults = new SharpSploitResultList <PingResult>();
using (CountdownEvent waiter = new CountdownEvent(pingAddresses.Count))
{
object pingResultsLock = new object();
int runningThreads = 0;
foreach (string ComputerName in pingAddresses)
{
Ping ping = new Ping();
PingResult pingResult = new PingResult(ComputerName, true);
ping.PingCompleted += new PingCompletedEventHandler((sender, e) =>
{
if (e.Reply != null && e.Reply.Status == IPStatus.Success)
{
lock (pingResultsLock)
{
pingResults.Add(pingResult);
}
}
((CountdownEvent)e.UserState).Signal();
});
while (runningThreads >= Threads)
{
waiter.WaitOne();
runningThreads--;
}
try
{
ping.SendAsync(ComputerName, Timeout, waiter);
runningThreads++;
}
catch { }
}
waiter.Wait(Timeout * pingAddresses.Count);
}
return(pingResults);
}
/// <summary>
/// Conducts a port scan of specified ComputerNames on specified ports and reports open ports.
/// </summary>
/// <param name="ComputerNames">ComputerNames to port scan.</param>
/// <param name="Ports">Ports to scan.</param>
/// <param name="Ping">Optional switch. If true, pings the ComputerNames to ensure each is up before port scanning.</param>
/// <param name="Timeout">Timeout (in milliseconds) before a port is considered down.</param>
/// <param name="Threads">Number of threads with which to portscan simultaneously</param>
/// <returns>List of PortScanResults</returns>
public static SharpSploitResultList <PortScanResult> PortScan(IList <string> ComputerNames, IList <int> Ports, bool Ping = true, int Timeout = 250, int Threads = 100)
{
IList <string> scanAddresses = Utilities.ConvertCidrToIPs(ComputerNames).Distinct().ToList();
IList <int> scanPorts = Ports.Where(P => P > 1 && P < 65536).Distinct().ToList();
if (Ping)
{
SharpSploitResultList <PingResult> pingResults = Network.Ping(scanAddresses, Timeout, Threads);
scanAddresses = pingResults.Where(PR => PR.IsUp).Select(PR => PR.ComputerName).ToList();
}
IList <PortScanResult> portScanResults = new List <PortScanResult>();
using (CountdownEvent waiter = new CountdownEvent(scanAddresses.Count * Ports.Count))
{
object portScanResultsLock = new object();
int runningThreads = 0;
foreach (string ComputerName in scanAddresses)
{
foreach (int Port in scanPorts)
{
TcpClient client = null;
if (!Utilities.IsIP(ComputerName))
{
client = new TcpClient();
}
else
{
IPAddress.TryParse(ComputerName, out IPAddress address);
client = new TcpClient(address.AddressFamily);
}
PortScanResult portScanResult = new PortScanResult(ComputerName, Port, true);
while (runningThreads >= Threads)
{
waiter.WaitOne(Timeout);
runningThreads--;
}
IAsyncResult asyncResult = client.BeginConnect(ComputerName, Port, new AsyncCallback((state) => {
try
{
client.EndConnect(state);
client.Close();
}
catch
{
portScanResult.IsOpen = false;
}
if (portScanResult.IsOpen)
{
lock (portScanResultsLock)
{
portScanResults.Add(portScanResult);
}
}
((CountdownEvent)state.AsyncState).Signal();
}), waiter);
runningThreads++;
}
}
waiter.Wait(Timeout * scanAddresses.Count * Ports.Count);
}
SharpSploitResultList <PortScanResult> results = new SharpSploitResultList <PortScanResult>();
results.AddRange(portScanResults);
return(results);
}
