SF (securefiles) is a local intrusion detection system (IDS) which will get the hashes for the specified files and create a database which is then then it is encrypted with AES. The executable checks itself, and a phrase is displayed (we select it on the installation) every time the program run successfully.
You can download it from the following link: https://packetstormsecurity.com/files/download/24903/rdC-sf.1.0.tgz
Source: https://packetstormsecurity.com/files/24903/rdC-sf.1.0.tgz.html