用VB做的cmd后门 基本功能已经实现，提供有源代码，喜欢VB的朋友可以试着扩展其功能 或者修改一下部分可能存在的bug,打造属于自己的cmd后门-Cmd using VB to do the basic functions of the back door has been achieved to provide source code, like VB friends can try to expand or modify its function may exist in some