LONGLEASH

According to Cisco Talos, LONGLEASH is a new version of the previously disclosed SHORTLEASH backdoor, built from the same C++ codebase and compiled for Linux on MIPS using the Boost.Asio asynchronous networking library along with open-source components for protobuf processing and TLS, and it offers extensive proxying and tunneling capabilities such as reverse shells, HTTP/DNS/SOCKS/TCP/ICMP/UDP proxies, SMTP, packet redirection, and the ability to act as an intermediate command and control server while self-removing if tampering is detected.