xeno_rat_client.SocketHandler Class Reference

Collaboration diagram for xeno_rat_client.SocketHandler:

Public Member Functions
	SocketHandler (Socket socket, byte[] _EncryptionKey)
byte[]	BTruncate (byte[] bytes, int offset)
	Truncates the input byte array from the specified offset and returns the truncated byte array.
async Task< bool >	SendAsync (byte[] data)
	Asynchronously sends the specified data over the socket after compressing, encrypting, and adding necessary headers.
async Task< byte[]>	ReceiveAsync ()
	Asynchronously receives data and performs various operations on it, such as decryption, decompression, and parsing headers, before returning the result.
int	BytesToInt (byte[] data, int offset=0)
	Converts the specified byte array to an integer.
byte[]	IntToBytes (int data)
	Converts an integer to a byte array.
void	SetRecvTimeout (int ms)
	Sets the receive timeout for the socket.
void	ResetRecvTimeout ()
	Resets the receive timeout for the socket to zero.

Static Public Member Functions
static byte[]	Concat (byte[] b1, byte[] b2)
	Concatenates two byte arrays and returns the result.

Public Attributes
Socket	sock
byte[]	EncryptionKey

Private Member Functions
async Task< byte[]>	RecvAllAsync_ddos_unsafer (int size)
	Asynchronously receives all the data of the specified size from the connected socket and returns it as a byte array.
async Task< byte[]>	RecvAllAsync_ddos_safer (int size)
	Asynchronously receives all the data of the specified size from the connected socket and returns the received data as a byte array.
header	ParseHeader (byte[] data)
	Parses the header from the given byte array and returns the header information.

Private Attributes
int	socktimeout = 0

Constructor & Destructor Documentation

SocketHandler()

xeno_rat_client.SocketHandler.SocketHandler ( Socket socket, byte[] _EncryptionKey )

inline

Member Function Documentation

BTruncate()

byte[] xeno_rat_client.SocketHandler.BTruncate ( byte[] bytes, int offset )

inline

Truncates the input byte array from the specified offset and returns the truncated byte array.

Parameters

bytes	The input byte array from which the truncation will be performed.
offset	The offset from which the truncation will start.

Returns

The truncated byte array starting from the specified offset .

This method creates a new byte array T_data with a length equal to the difference between the length of the input byte array bytes and the specified offset . It then uses the Buffer.BlockCopy method to copy the data from the input byte array starting from the specified offset to the newly created byte array T_data . The resulting truncated byte array T_data is then returned.

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BytesToInt()

int xeno_rat_client.SocketHandler.BytesToInt ( byte[] data, int offset = 0 )

inline

Converts the specified byte array to an integer.

Parameters

data	The byte array to be converted.
offset	The offset within the byte array where the conversion should start (default is 0).

Returns

The integer value converted from the specified byte array.

This method converts the specified byte array to an integer value, taking into account the endianness of the system. If the system is little-endian, the bytes are combined in little-endian order (least significant byte first). If the system is big-endian, the bytes are combined in big-endian order (most significant byte first).

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Concat()

static byte[] xeno_rat_client.SocketHandler.Concat ( byte[] b1, byte[] b2 )

inlinestatic

Concatenates two byte arrays and returns the result.

Parameters

b1	The first byte array to be concatenated. If null, an empty byte array is used.
b2	The second byte array to be concatenated.

Returns

A byte array containing the concatenated elements of b1 and b2 .

This method concatenates the elements of the input byte arrays b1 and b2 into a single byte array. If b1 is null, an empty byte array is used for concatenation.

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IntToBytes()

byte[] xeno_rat_client.SocketHandler.IntToBytes ( int data )

inline

Converts an integer to a byte array.

Parameters

data	The integer to be converted to a byte array.

Returns

A byte array representing the input integer.

This method converts the input integer data to a byte array of length 4. If the system architecture is little-endian, the bytes are arranged in little-endian order; otherwise, they are arranged in big-endian order.

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ParseHeader()

header xeno_rat_client.SocketHandler.ParseHeader ( byte[] data )

inlineprivate

Parses the header from the given byte array and returns the header information.

Parameters

data	The byte array containing the header information.

Returns

The parsed header information as an instance of the header class.

This method parses the header information from the input byte array and creates a new instance of the header class to store the parsed information. If the first byte of the input data is 1, it indicates that the data is compressed, and the method sets the corresponding properties of the header instance. The method also sets the original file size and T_offset properties based on the input data. If the first byte of the input data is not 0 or 1, the method returns null, indicating that the header parsing failed.

Exceptions

System.IndexOutOfRangeException

Thrown if the input data array is empty or does not contain sufficient elements to parse the header.

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ReceiveAsync()

async Task< byte[]> xeno_rat_client.SocketHandler.ReceiveAsync ( )

inline

Asynchronously receives data and performs various operations on it, such as decryption, decompression, and parsing headers, before returning the result.

Returns

The received data after decryption, decompression, and parsing headers.

Exceptions

Exception

Thrown when an error occurs during the data receiving process.

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RecvAllAsync_ddos_safer()

async Task< byte[]> xeno_rat_client.SocketHandler.RecvAllAsync_ddos_safer ( int size )

inlineprivate

Asynchronously receives all the data of the specified size from the connected socket and returns the received data as a byte array.

Parameters

size	The size of the data to be received.

Returns

The received data as a byte array. Returns null if the socket is not connected, or if a timeout occurs while waiting for data.

Exceptions

System.ObjectDisposedException	The socket has been closed.
System.Net.Sockets.SocketException	An error occurred when attempting to access the socket.

This method asynchronously receives data from the connected socket until the specified size is reached. If the socket is not connected, it returns null. If a timeout occurs while waiting for data, it also returns null. The method also handles potential exceptions such as ObjectDisposedException and SocketException.

RecvAllAsync_ddos_unsafer()

async Task< byte[]> xeno_rat_client.SocketHandler.RecvAllAsync_ddos_unsafer ( int size )

inlineprivate

Asynchronously receives all the data of the specified size from the connected socket and returns it as a byte array.

Parameters

size	The size of the data to be received.

Returns

The received data as a byte array. If the socket is not connected, returns null.

Exceptions

SocketException

Thrown when an error occurs with the socket.

This method asynchronously receives data from the connected socket until the specified size is reached. It initializes the last send time and continuously receives data in a loop until the total received data size matches the specified size. If the socket is not connected, it returns null. If an error occurs with the socket, a SocketException is thrown.

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ResetRecvTimeout()

void xeno_rat_client.SocketHandler.ResetRecvTimeout ( )

inline

Resets the receive timeout for the socket to zero.

This method sets the socktimeout to zero and also sets the ReceiveTimeout property of the socket to zero.

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SendAsync()

async Task< bool > xeno_rat_client.SocketHandler.SendAsync ( byte[] data )

inline

Asynchronously sends the specified data over the socket after compressing, encrypting, and adding necessary headers.

Parameters

data	The data to be sent over the socket.

Exceptions

ArgumentNullException

Thrown when the input data is null.

Returns

True if the data is successfully sent over the socket; otherwise, false.

This method compresses the input data using the Compression class, and then encrypts it using the EncryptionKey. It adds necessary headers and protocol upgrade byte before sending the data over the socket.

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SetRecvTimeout()

void xeno_rat_client.SocketHandler.SetRecvTimeout ( int ms )

inline

Sets the receive timeout for the socket.

Parameters

ms	The receive timeout value in milliseconds.

This method sets the receive timeout for the underlying socket to the specified value in milliseconds.

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Member Data Documentation

EncryptionKey

byte [] xeno_rat_client.SocketHandler.EncryptionKey

sock

Socket xeno_rat_client.SocketHandler.sock

socktimeout

int xeno_rat_client.SocketHandler.socktimeout = 0

private

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The documentation for this class was generated from the following file:

• /Users/sumansaurabh/Documents/my-startup/xeno-rat/xeno rat client/SocketHandler.cs