Upgrading simple (reverse-)shells to fully interactive TTYs

TTY_reverse_shell.sh

#######################################################
# Upgrading simple shells to fully interactive TTYs   #
#######################################################

# In reverse shell
$ python -c 'import pty; pty.spawn("/bin/bash")'
Ctrl-Z

# In Kali or elsewhere
$ echo $TERM
$ stty -a

$ stty raw -echo
$ fg

# In reverse shell
$ reset
$ export SHELL=bash
$ export TERM=xterm-256color
$ stty rows <num> columns <cols>

#######################################################
# Spawning a TTY Shell                                #
#######################################################

python -c 'import pty; pty.spawn("/bin/sh")'

echo os.system('/bin/bash')

/bin/sh -i

perl —e 'exec "/bin/sh";'

perl: exec "/bin/sh";

ruby: exec "/bin/sh"

lua: os.execute('/bin/sh')

# (From within IRB)
exec "/bin/sh"

# (From within vi)
:!bash

# (From within vi)
:set shell=/bin/bash:shell

# (From within nmap)
!sh