We have to add login shell script in /etc/shells to acquire Keyboard Logger(KBL).
If the login shell script is linked file like this, which scripts should we add in /etc/shells?
#ls -la /bin/sh
rwxrwxrwx 1 root root 4 Apr 20 2015 /bin/sh -> /usr/bin/XXXX/ksh
"/bin/sh" OR "/usr/bin/XXXX/ksh"
We should add "/usr/bin/XXXX/ksh" in /etc/shells.