obfus.h is a macro-only library for compile-time obfuscating C applications, designed specifically for the Tiny C (tcc). It is tailored for Windows x86 and x64 platforms and supports all versions of the compiler.
- 🔍 Function Call Obfuscation: Confuse function calls to make your code less readable to unauthorized eyes.
- 🛡️ Anti-Debugging Techniques: Built-in mechanisms to prevent code analysis during runtime.
- 🔄 Control Flow Code Mutation: Turns code into spaghetti, making it difficult to parse conditions and loops.
Integrating obfus.h into your project is a simple process. Just include the following line in your code:
#include "obfus.h"
This will automatically obfuscate your code during compilation, ensuring protection and confidentiality of your intellectual property.
Available options for protection configuring:
#define no_cflow 1 // Don't use Control-Flow obfuscation #define no_antidebug 1 // Don't build in debugging protectionor use it with compiler args:
tcc "app.c" -w -D no_cflow -D no_antidebug
-w
argument to suppress warnings. Otherwise, the console will display numerous intimidating logs that have no impact on the final result. There's no need to be alarmed by them.
// Let's obfuscate your code!
#include <stdio.h>
// #define no_cflow 1
// #define no_antidebug 1
#include "obfus.h"
void main() {
char *out = malloc(256);
strcpy(out, "Hello, world!");
if (out) {
printf(out);
} else {
printf("Error!");
}
}
The obfuscator was written with support for Tiny C of any version (even 0.9.24
). However, for best results, you should use the latest version of the compiler. It opens up more possibilities for confusion