dobin-ShellcodeObfuscationLab/lab_results/random_shellcode/xor_single_work.c

#include <windows.h>
#include <stdio.h>


int main(void)
{	
	
	unsigned int xorkey = 23;
unsigned char shellcode[42] = {232, 233, 99, 23, 114, 23, 100, 23, 99, 23, 114, 23, 126, 23, 121, 23, 100, 23, 109, 23, 96, 23, 120, 23, 114, 23, 126, 23, 121, 23, 100, 23, 109, 23, 96, 23, 120, 23, 37, 23, 37, 23};

	// XOR each byte of our shellcode with the key to decode it
	for (int idx = 0;  idx < sizeof(shellcode); idx++) {
        shellcode[idx] = shellcode[idx] ^ xorkey;
	}

	int idx = 0;
	while ( idx < sizeof(shellcode))
	{
		if (idx == (sizeof(shellcode) - 1) )
		{
			printf("0x%02x ", (unsigned char)shellcode[idx]);
		}
		else
		{
			printf("0x%02x, ", (unsigned char)shellcode[idx]);
		}
		idx++;
	}


	return 0;
}