DLL注入之SHELLCODE数据转换

#include "stdafx.h"
#include <stdio.h>
#include <string.h>
#include <conio.h>
#include <Windows.h>

char shellcode[] = "x31xd2xb2x30x64x8bx12x8bx52x0cx8bx52x1cx8bx42"
    "x08x8bx72x20x8bx12x80x7ex0cx33x75xf2x89xc7x03"
    "x78x3cx8bx57x78x01xc2x8bx7ax20x01xc7x31xedx8b"
    "x34xafx01xc6x45x81x3ex46x61x74x61x75xf2x81x7e"
    "x08x45x78x69x74x75xe9x8bx7ax24x01xc7x66x8bx2c"
    "x6fx8bx7ax1cx01xc7x8bx7cxafxfcx01xc7x68x79x74"
    "x65x01x68x6bx65x6ex42x68x20x42x72x6fx89xe1xfe"
    "x49x0bx31xc0x51x50xffxd7";

int HextoBin(char* input)
{
    FILE* fp;
    if ((fp  = fopen(input,"wb")) == NULL)
    {
        printf("[-]:HextoBin files:%s not find
",input);
        return 0;
    }

    fwrite(shellcode,1,sizeof(shellcode) -1,fp);
    fclose(fp);
    printf("[*]:Bin files suscess Convert,check Files:%s
",input);
    return 0;
}


int Bin2Hex(char* src,char* des)
{
    FILE *fi,*fo;
    unsigned int n;
    int c;

    if ((fi = fopen(src,"rb")) == NULL)
    {
        cprintf("Can not find file %s",src);
        return 0;
    }

    if ((fo=fopen(des,"w"))==NULL) 
    {
        fclose(fi);
        cprintf("Can not create file %s",des);
        return 0;
    }

    n=0;
    while (1) 
    {
        c=fgetc(fi);
        if (EOF==c) break;
        n++;
        if (1==n)        fprintf(fo,  ""\x%02X",c);
        else {
            if (1==n%16) fprintf(fo,""
"\x%02X",c);
            else         fprintf(fo, "\x%02X",c);
        }
    }
    fprintf(fo,""");
    fcloseall();
    cprintf("OK to Bin2Hex %u bytes.",n);
    return 0;
}

void help(char* proc)
{
    printf("[-]:%s Srcfile Descfile
",proc);
    printf("[-]:%s -hex shellcode.bin Convert.hex
",proc);
    printf("[-]:%s -bin Convert.bin
",proc);
}

//-------------------------------------------------------
int main(int argc,char *argv[])
{

    if (argc == 4)
    {
        if (stricmp(argv[1],"-hex") == 0)
        {
            char* src = argv[2];
            char* des = argv[3];
            Bin2Hex(src,des);

        }else
        {
            help(argv[0]);
            exit(0);
        }
    }else if (argc == 3)
    {
        if (stricmp(argv[1],"-bin") == 0)
        {
             char* outfile = argv[2];
             HextoBin(outfile);
        }else
        {
            help(argv[0]);
            exit(0);
        }
    }else
    {
        help(argv[0]);
        exit(0);
    }

    return 0;
}

详细参数说明：

当把shellcode写入代码shellcode变量的时候，输入-bin shellcode.bin 将生成二进制文件数据流。

当需要把二进制数据流转换成hex(16进制的时候)输入-hex shellcode.bin hex.hex

具体请看代码。这是博主自己的学习笔记，请勿喷。