I have a lot of experience with C, C++, asm, C#. In C++ often use libraries such as MFC/ATL, boost, STL, stlsoft, cryptopp, and etc. Very well know Windows API and use API hooking. Develop drivers for Windows 32/64.Worked with a stack of network protocols (IP / TCP / UDP), (HTTP / FTP / SMTP). Reverse engineering: OllyDbg, IDA, HIEW, DebugAPI....