With the recent CTF’s I’ve played, I thought of coding an app to calculate big numbers easily, instead of manually programming. At times playing with big numbers is painful. I have written this in MASM32 and have used biglib for big numbers.
This is a application which I coded in last year but I have forgotten to make a blog post. Using this tool you can create a ‘..’ folder in Windows and store your data inside it. No one can access your files using the explorer since the path is not valid, they can only see the name 🙂
This trick can be used in pentesting and is widely used by malware for hiding other malicious files. I coded this tool just for fun 😀