TLS中检测断点反调试
TLS原理：通过检测程序入口点处的200字节内是否有下的cc断点，如果有，刚程序退出
// TLS_test.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "TLS_test.h"
#include <windows.h>
#include <winnt.h>
#pragma comment(linker, "/INCLUDE:__tls_used")
/*这是PIMAGE_TLS_CALLBACK()函数的原型，其中第一个和第三个参数保留，第二个参数决定函数在那种情况下*/
void NTAPI my_tls_callback1(PVOID h, DWORD reason, PVOID pv)
{
/*一共有四个选项DLL_PROCESS_ATTACH、DLL_THREAD_ATTACH、DLL_THREAD_DETACH和DLL_PROCESS_DETACH。详见微软发布的《Microsoft Portable Executable and Common Object File Format Specification v8》*/
//仅在进程初始化创建主线程时执行的代码
if( reason == DLL_PROCESS_ATTACH ){
MessageBox(NULL,"hi,this is tls callback","title",MB_OK);
}
return;
}
#pragma data_seg(".CRT$XLB")
/*如果要定义多个TLS_CallBack函数，可以把下面这句写成：
PIMAGE_TLS_CALLBACK p_thread_callback [] = {tls_callback_A, tls_callback_B, tls_callback_C,0};
其中tls_callback_B和tls_callback_C应该是你定义好的其他TLS_callBack函数
*/
extern "C" PIMAGE_TLS_CALLBACK my_tls_callbacktbl[] = {TlsCallBackFunction1, 0};
#pragma data_seg()
int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
MessageBox(NULL, TEXT("the main function:hello world"), TEXT("Tls test"), MB_OK);
return 0;
}
void NTAPI TlsCallBackFunction1(PVOID h, DWORD reason, PVOID pv)
{
/*一共有四个选项DLL_PROCESS_ATTACH、DLL_THREAD_ATTACH、DLL_THREAD_DETACH和DLL_PROCESS_DETACH。详见微软发布的《Microsoft Portable Executable and Common Object File Format Specification v8》*/
//仅在进程初始化创建主线程时执行的代码
if( reason == DLL_PROCESS_ATTACH ){
MessageBox(NULL,"It's my test","tls test",MB_OK);
IMAGE_DOS_HEADER *dos_head=(IMAGE_DOS_HEADER *)GetModuleHandle(NULL);
PIMAGE_NT_HEADERS32 nt_head=(PIMAGE_NT_HEADERS32)((DWORD)dos_head+(DWORD)dos_head->e_lfanew);
BYTE*OEP=(BYTE*)(nt_head->OptionalHeader.AddressOfEntryPoint+(DWORD)dos_head);
for(unsigned long index=0;index<200;index++)
{
if(OEP==0xcc)
{
ExitProcess(0);
}
}
}
return;
}
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