private void DataFromTeamServer(byte[] data)
{
try
{
var packet = Serialisation.DeserialiseData <ReversePortForwardPacket>(data);
InboundPackets.Add(packet);
}
catch (Exception e)
{
Agent.SendError(e.Message);
}
}
private void DataFromTeamServer(byte[] data)
{
try
{
var packet = Serialisation.DeserialiseData <ReversePortForwardPacket>(Convert.FromBase64String(Encoding.UTF8.GetString(data)));
InboundPackets.Add(packet);
}
catch (Exception e)
{
Agent.SendError(e.Message);
}
}
public T Decrypt <T>(byte[] data)
{
var iv = new byte[16];
var hmac = new byte[32];
var enc = new byte[data.Length - iv.Length - hmac.Length];
Buffer.BlockCopy(data, 0, iv, 0, iv.Length);
Buffer.BlockCopy(data, enc.Length, hmac, 0, hmac.Length);
Buffer.BlockCopy(data, iv.Length, enc, 0, enc.Length);
var decrypted = Cryptography.Decrypt(enc, EncryptionKey, iv);
var decompressed = Common.Helpers.Decompress(decrypted);
return(Serialisation.DeserialiseData <T>(decompressed));
}
private void DataFromAgent(AgentMetadata metadata, C2Data c2Data)
{
var packet = Serialisation.DeserialiseData <ReversePortForwardPacket>(c2Data.Data);
if (!IPAddress.TryParse(packet.ForwardHost, out IPAddress ipAddress))
{
ipAddress = Dns.GetHostEntry(packet.ForwardHost).AddressList[0];
}
var endPoint = new IPEndPoint(ipAddress, packet.ForwardPort);
var sender = new Socket(ipAddress.AddressFamily, SocketType.Stream, ProtocolType.IP);
sender.Connect(endPoint);
var bytesSent = sender.Send(packet.Data);
if (bytesSent > 0)
{
Log.Logger.Information("MODULE {ModuleName} {Data}", "ReversePortForward", $"{bytesSent} bytes sent");
}
var buffer = new byte[65535];
var bytesRecv = sender.Receive(buffer);
if (bytesRecv > 0)
{
packet.Data = buffer.TrimBytes();
Agent.SendAgentCommand(new AgentCommandRequest
{
AgentId = c2Data.AgentID,
Module = "rportfwd",
Command = "DataFromTeamServer",
Data = Convert.ToBase64String(Serialisation.SerialiseData(packet))
}, null);
}
sender.Shutdown(SocketShutdown.Both);
sender.Close();
}
private void RegisterAgentModule(AgentMetadata metadata, C2Data c2Data)
{
var moduleInfo = Serialisation.DeserialiseData <AgentModule>(c2Data.Data);
Agent.RegisterAgentModule(metadata, moduleInfo);
}