The original variant of  encrypts C2 traffic using a custom encryption cipher that uses an XOR key of YHCRA and bit rotation between each XOR operation. Some variants of  use RC4 to encrypt C2 traffic.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: The original variant of  encrypts C2 traffic using a custom encryption cipher that uses an XOR key of YHCRA and bit rotation between each XOR operation. Some variants of  use RC4 to encrypt C2 traffic. ### Response: T1573.001.