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error C2041 - C2415 - C2426

Hawlong (120)
I want to make a dell file, but there are some errors

my code






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#include <Windows.h>
#include <iostream>
#include <string>
#include <TCHAR.H>
using namespace std;


DWORD jmpBackAddy;

bool Hook(void * toHook, void * ourFunct, int len)
{
    if (len < 5)
    {
        return false;
    }
    else
    {

    }

    DWORD curProtection;
    VirtualProtect(toHook, len, PAGE_EXECUTE_READWRITE, &curProtection);

    memset(toHook, 0x90, len);

    DWORD relativeAddress = ((DWORD)ourFunct - (DWORD)toHook) - 5;

    *(BYTE*)toHook = 0xE9;
    *(DWORD*)((DWORD)toHook + 1) = relativeAddress; 

    DWORD temp;
    VirtualProtect(toHook, len, curProtection, &temp);
    
    return true;
}

void __declspec(naked) ourFunct()
{



	
    __asm
    {
		cmp [[0128CAD4]+000002E0],32
		jnc  speedjmp
		cmp [[0128CAD4]+000002E0],22
		jc  s_speed
		cmp [[0128CAD4]+000002E0],25
		Je speedwake
		jmp code
		speedjmp:
		mov [[0128CAD4]+000002E0],33
		jmp code

		speedwake:
		mov [[0128CAD4]+000002E0],24
		jmp code

		s_speed:
		mov [[0128CAD4]+000002E0],5
		jmp code

		code:
		  mov ebx,[esi+000002E0]
          jmp jmpBackAddy
    }
	
}

DWORD WINAPI MainThread(LPVOID param)
{
    int hookLength = 6; // 5 for jump + 1 remaining

    DWORD hookAddress = 0x988B91; 
    
    jmpBackAddy = hookAddress + hookLength;
    Hook((void*)hookAddress, ourFunct, hookLength);
	//Create Console
    AllocConsole();
    FILE* f;
    freopen_s(&f, "CONOUT$", "w", stdout);
    //end console
    
    while (true)
    {

        if (GetAsyncKeyState(VK_ESCAPE)) break;

        Sleep(1000);
    }
    fclose(f);
    FreeConsole();
    FreeLibraryAndExitThread((HMODULE)param, 0);
    return 0;
}
BOOL WINAPI DllMain(HINSTANCE hModule, DWORD dwReason, LPVOID lpReserved) {
	switch (dwReason) {
	case DLL_PROCESS_ATTACH:
		CreateThread(0, 0, MainThread, hModule, 0, 0);
		break;
	}

	return TRUE;
}






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errors .

 error C2426: '[' : illegal operator in 'first operand'
 error C2041: illegal digit '8' for base '8'
 error C2041: illegal digit 'C' for base '8'
 error C2041: illegal digit 'A' for base '8'
 error C2041: illegal digit 'D' for base '8'
 error C2041: illegal digit 'E' for base '8'
 error C2415: improper operand type
 error C2426: '[' : illegal operator in 'first operand'
 error C2041: illegal digit '8' for base '8'
 error C2041: illegal digit 'C' for base '8'
 error C2041: illegal digit 'A' for base '8'
 error C2041: illegal digit 'D' for base '8'
 error C2041: illegal digit 'E' for base '8'
 error C2415: improper operand type
 error C2426: '[' : illegal operator in 'first operand'
 error C2041: illegal digit '8' for base '8'
 error C2041: illegal digit 'C' for base '8'
 error C2041: illegal digit 'A' for base '8'
 error C2041: illegal digit 'D' for base '8'
 error C2041: illegal digit 'E' for base '8'
 error C2415: improper operand type
 error C2426: '[' : illegal operator in 'first operand'
 error C2041: illegal digit '8' for base '8'
 error C2041: illegal digit 'C' for base '8'
 error C2041: illegal digit 'A' for base '8'
 error C2041: illegal digit 'D' for base '8'
 error C2041: illegal digit 'E' for base '8'
 error C2415: improper operand type
 error C2426: '[' : illegal operator in 'first operand'
 error C2041: illegal digit '8' for base '8'
 error C2041: illegal digit 'C' for base '8'
 error C2041: illegal digit 'A' for base '8'
 error C2041: illegal digit 'D' for base '8'
 error C2041: illegal digit 'E' for base '8'
 error C2415: improper operand type
 error C2426: '[' : illegal operator in 'first operand'
 error C2041: illegal digit '8' for base '8'
 error C2041: illegal digit 'C' for base '8'
 error C2041: illegal digit 'A' for base '8'
 error C2041: illegal digit 'D' for base '8'
 error C2041: illegal digit 'E' for base '8'
 error C2415: improper operand type
 error C2041: illegal digit 'E' for base '8'
Last edited on
seeplus (6591)
0128CAD4

Any literal number that starts with a 0 is taken to be an octal (base 8) number.

Don't you mean

0x0128CAD4

The same with other numbers.
Hawlong (120)
thanks seeplus for answer .

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#include <Windows.h>
#include <iostream>
#include <string>
#include <TCHAR.H>
using namespace std;


DWORD jmpBackAddy;

bool Hook(void * toHook, void * ourFunct, int len)
{
    if (len < 5)
    {
        return false;
    }
    else
    {

    }

    DWORD curProtection;
    VirtualProtect(toHook, len, PAGE_EXECUTE_READWRITE, &curProtection);

    memset(toHook, 0x90, len);

    DWORD relativeAddress = ((DWORD)ourFunct - (DWORD)toHook) - 5;

    *(BYTE*)toHook = 0xE9;
    *(DWORD*)((DWORD)toHook + 1) = relativeAddress; 

    DWORD temp;
    VirtualProtect(toHook, len, curProtection, &temp);
    
    return true;
}

void __declspec(naked) ourFunct()
{



	
    __asm
    {
		cmp [[0x0128CAD4]+0x2E0],32
		jnc  speedjmp
		cmp [[0x0128CAD4]+0x2E0],22
		jc  s_speed
		cmp [[0x0128CAD4]+0x2E0],25
		Je speedwake
		jmp code
		speedjmp:
		mov [[0x0128CAD4]+0x2E0],33
		jmp code

		speedwake:
		mov [[0x0128CAD4]+0x2E0],24
		jmp code

		s_speed:
		mov [[0x0128CAD4]+0x2E0],5
		jmp code

		code:
		  mov ebx,[esi+0x2E0]
          jmp jmpBackAddy
    }
	
}

DWORD WINAPI MainThread(LPVOID param)
{
    int hookLength = 6; // 5 for jump + 1 remaining

    DWORD hookAddress = 0x988B91; 
    
    jmpBackAddy = hookAddress + hookLength;
    Hook((void*)hookAddress, ourFunct, hookLength);
	//Create Console
    AllocConsole();
    FILE* f;
    freopen_s(&f, "CONOUT$", "w", stdout);
    //end console
    
    while (true)
    {

        if (GetAsyncKeyState(VK_ESCAPE)) break;

        Sleep(1000);
    }
    fclose(f);
    FreeConsole();
    FreeLibraryAndExitThread((HMODULE)param, 0);
    return 0;
}
BOOL WINAPI DllMain(HINSTANCE hModule, DWORD dwReason, LPVOID lpReserved) {
	switch (dwReason) {
	case DLL_PROCESS_ATTACH:
		CreateThread(0, 0, MainThread, hModule, 0, 0);
		break;
	}

	return TRUE;
}



some errors.

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: error C2426: '[' : illegal operator in 'first operand'
: error C2415: improper operand type
: error C2426: '[' : illegal operator in 'first operand'
: error C2415: improper operand type
: error C2426: '[' : illegal operator in 'first operand'
: error C2415: improper operand type
: error C2426: '[' : illegal operator in 'first operand'
: error C2415: improper operand type
: error C2426: '[' : illegal operator in 'first operand'
: error C2415: improper operand type
: error C2426: '[' : illegal operator in 'first operand'
: error C2415: improper operand type
seeplus (6591)
It's over 25 years since I last programmed in Intel assembly - but with my rather hazy memory, don't you need a ptr (or byte ptr) before a [ when accessing memory content via a dereference ([])?

I'm also not convinced you can do a double re-def in the same operand...
Last edited on
Hawlong (120)
thanks for reply .

i use this script by cheat engine 
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label(code)
label(return)

newmem:
cmp [[0128CAD4]+000002E0],#32
jnc  speedjmp
cmp [[0128CAD4]+000002E0],#22
jc  scapterspeed
cmp [[0128CAD4]+000002E0],#25
Je speedwake
jmp code
speedjmp:
mov [[0128CAD4]+000002E0],#33
jmp code

speedwake:
mov [[0128CAD4]+000002E0],#24
jmp code

scapterspeed:
mov [[0128CAD4]+000002E0],#5
jmp code
code:
  mov ebx,[esi+000002E0]
  jmp return

INJECT:
  jmp newmem
  nop

The script works, but I want to convert it to a c++ dll .

I tried this
cmp [0x0128CAD4]+0x2E0,32

error C2415: improper operand type


I tried this
cmp [0x0128CAD4+0x2E0],32


error C2415: improper operand type
Last edited on
seeplus (6591)
Are you using VS? If yes, then in-line assembly code will only compile when compiled as 32-bit. It won't compile as 64-bit.

"Inline assembly is not supported on the ARM and x64 processors."

https://docs.microsoft.com/en-us/cpp/assembler/inline/inline-assembler?view=msvc-170
Last edited on
Hawlong (120)
thanks for replay

yes i use vs 2010 , I made a lot of dell files with c plus all are working fine
but this first time is use pointer inside the code like this cmp [[0x0128CAD4]+0x2E0],32

Is there a way to hide compiler errors?
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