The latest articles on DEV Community by CornelI5 (@corneli5). https://dev.to/corneli5 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4006652%2F9f2a1a80-a278-4ea7-90a2-27ab5b9ffbfa.jpg https://dev.to/corneli5 en CornelI5 Sun, 28 Jun 2026 15:28:00 +0000 https://dev.to/corneli5/just-sharing-our-hobby-project-f4us-a-very-early-antivirus-made-in-c-1ge8 https://dev.to/corneli5/just-sharing-our-hobby-project-f4us-a-very-early-antivirus-made-in-c-1ge8 <p>Hello everyone!</p> <p>Me and my friend. We are still learning, and recently we tried to make a very simple, hobby antivirus/security project written in C. We call it, F4us.</p> <p>It is far from perfect and still in a very early development phase. We just wanted to learn how some basic security concepts work under the hood.</p> <p>What we tried to build:</p> <ul> <li>A simple honeypot script to log suspicious access.</li> <li>A basic entropy function to check file structures.</li> <li>A background daemon loop to monitor files.</li> </ul> <p>Since we are still beginners, we know there are probably a lot of bugs and messy code in it. We just wanted to share this hobby journey here. Thank you for reading! <br> here is the link(github), sorry if include many bugs or critical,it just an experiment:<br> <a href="https://github.com/CornelI5/F4us" rel="noopener noreferrer">https://github.com/CornelI5/F4us</a><br> my friend was out, he are in crashout cause this project is too hard.<br> btw, dont use this in your real computer, trust me. just use VM(Virtual Machine),or you will get BSOD(blue screen of death) or kernel panic.</p> beginners c opensource antivirus