Ransack is a post exploitation shellscript for penetration testers. Its purpose is to grab any information deemed relevant on a system, post root compromise. This information may include config files, ssh keys, ssl keys, or any other information deemed valuable.
You can download it from the following link: https://packetstormsecurity.com/files/download/112450/ransack.sh.txt
Source: https://packetstormsecurity.com/files/112450/Ransack-Post-Exploitation-Tool.html