Malware
HTTP-Shell
The author describes this open source shell as follows.
HTTP-Shell is a PowerShell malware family.
Background
The developer presents this open source shell as follows. HTTP-Shell is a cross-platform reverse shell that delivers a shell-like interface over a reverse connection carried via HTTP. Its distinguishing aim is to be paired with Microsoft Dev Tunnels so the resulting connection looks as legitimate as possible.
While not fully interactive, the shell surfaces errors on screen for both Windows and Linux, supports uploading and downloading files, keeps a command history, clears the terminal (including via CTRL+L), reconnects automatically, lets the user move between directories, and supports sudo (or sudo su) on Linux-based systems.
Source: Malpedia (Fraunhofer FKIE).