bash-backdoor
A simple backdoor in (ba)sh
It is cross-compatible across POSIX shells. While I initially decided to write for bash, I decided to use /bin/sh later.
This little backdoor works well with traditional netcat with -e option but it can be easily ported to support openbsd variant by making use of file descriptors.
My attempt to add support for nc.openbsd has not been very successful. Currently, nc.traditional works very well. nc.openbsd package however has issue in sending output back to client. PRs welcome
- The data over communication channel is totally encrypted with aes-256-cbc using openssl.
- You can generate new key, salt and iv. Check common.sh for reference
- You can pass several options as env-vars. Check common.sh for reference
Usage
Run daemon.sh
$ ./daemon.sh
Run client.sh
$ ./client.sh
You can run command on the simple prompt in your client-side now.