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Added missing xor_cc.hpp file and made adjustments to anti_debug.cpp. #5

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Added missing xor_cc.hpp file and made adjustments to anti_debug.cpp. #5

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1234cb0
Added the xor_cc.hpp file that was missing
Lrae1207 Feb 6, 2024
2a9c34e
Update anti_debug.cpp
Lrae1207 Feb 6, 2024
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34 changes: 17 additions & 17 deletions anti_debug.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -43,14 +43,14 @@ const wchar_t* security::internal::get_string(int index) {
std::string value = "";

switch (index) {
case 0: value = xor ("Qt5QWindowIcon"); break;
case 1: value = xor ("OLLYDBG"); break;
case 2: value = xor ("SunAwtFrame"); break;
case 3: value = xor ("ID"); break;
case 4: value = xor ("ntdll.dll"); break;
case 5: value = xor ("antidbg"); break;
case 6: value = xor ("%random_environment_var_name_that_doesnt_exist?[]<>@\\;*!-{}#:/~%"); break;
case 7: value = xor ("%random_file_name_that_doesnt_exist?[]<>@\\;*!-{}#:/~%"); break;
case 0: value = xor ("Qt5QWindowIcon"); break;
case 1: value = xor ("OLLYDBG"); break;
case 2: value = xor ("SunAwtFrame"); break;
case 3: value = xor ("ID"); break;
case 4: value = xor ("ntdll.dll"); break;
case 5: value = xor ("antidbg"); break;
case 6: value = xor ("%random_environment_var_name_that_doesnt_exist?[]<>@\\;*!-{}#:/~%"); break;
case 7: value = xor ("%random_file_name_that_doesnt_exist?[]<>@\\;*!-{}#:/~%"); break;
}

return std::wstring(value.begin(), value.end()).c_str();
Expand Down Expand Up @@ -601,26 +601,26 @@ int security::internal::virtualization::check_cpuid() {

int security::internal::virtualization::check_registry() {
HKEY h_key = 0;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, xor (L"HARDWARE\\ACPI\\DSDT\\VBOX__"), 0, KEY_READ, &h_key) == ERROR_SUCCESS) { return security::internal::debug_results::check_registry; }
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, xor_wchar(L"HARDWARE\\ACPI\\DSDT\\VBOX__"), 0, KEY_READ, &h_key) == ERROR_SUCCESS) { return security::internal::debug_results::check_registry; }

return security::internal::debug_results::none;
}

int security::internal::virtualization::vm() {
if (CreateFile(xor (L"\\\\.\\VBoxMiniRdrDN"), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, 0, 0) != INVALID_HANDLE_VALUE) { return security::internal::debug_results::vm; }
if (CreateFile(xor_wchar (L"\\\\.\\VBoxMiniRdrDN"), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, 0, 0) != INVALID_HANDLE_VALUE) { return security::internal::debug_results::vm; }

if (LoadLibrary(xor (L"VBoxHook.dll"))) { return security::internal::debug_results::vm; }
if (LoadLibrary(xor_wchar (L"VBoxHook.dll"))) { return security::internal::debug_results::vm; }

HKEY h_key = 0;
if ((ERROR_SUCCESS == RegOpenKeyEx(HKEY_LOCAL_MACHINE, xor(L"SOFTWARE\\Oracle\\VirtualBox Guest Additions"), 0, KEY_READ, &h_key)) && h_key) { RegCloseKey(h_key); return security::internal::debug_results::vm; }
if ((ERROR_SUCCESS == RegOpenKeyEx(HKEY_LOCAL_MACHINE, xor_wchar(L"SOFTWARE\\Oracle\\VirtualBox Guest Additions"), 0, KEY_READ, &h_key)) && h_key) { RegCloseKey(h_key); return security::internal::debug_results::vm; }

h_key = 0;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, xor(L"HARDWARE\\DESCRIPTION\\System"), 0, KEY_READ, &h_key) == ERROR_SUCCESS)
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, xor_wchar(L"HARDWARE\\DESCRIPTION\\System"), 0, KEY_READ, &h_key) == ERROR_SUCCESS)
{
unsigned long type = 0;
unsigned long size = 0x100;
char* systembiosversion = (char*)LocalAlloc(LMEM_ZEROINIT, size + 10);
if (ERROR_SUCCESS == RegQueryValueEx(h_key, xor(L"SystemBiosVersion"), 0, &type, (unsigned char*)systembiosversion, &size))
if (ERROR_SUCCESS == RegQueryValueEx(h_key, xor_wchar(L"SystemBiosVersion"), 0, &type, (unsigned char*)systembiosversion, &size))
{
to_lower((unsigned char*)systembiosversion);
if (type == REG_SZ || type == REG_MULTI_SZ)
Expand All @@ -636,7 +636,7 @@ int security::internal::virtualization::vm() {
type = 0;
size = 0x200;
char* videobiosversion = (char*)LocalAlloc(LMEM_ZEROINIT, size + 10);
if (ERROR_SUCCESS == RegQueryValueEx(h_key, xor(L"VideoBiosVersion"), 0, &type, (unsigned char*)videobiosversion, &size))
if (ERROR_SUCCESS == RegQueryValueEx(h_key, xor_wchar(L"VideoBiosVersion"), 0, &type, (unsigned char*)videobiosversion, &size))
{
if (type == REG_MULTI_SZ)
{
Expand All @@ -653,7 +653,7 @@ int security::internal::virtualization::vm() {
RegCloseKey(h_key);
}

HANDLE h = CreateFile(xor(L"\\\\.\\pipe\\VBoxTrayIPC"), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0);
HANDLE h = CreateFile(xor_wchar(L"\\\\.\\pipe\\VBoxTrayIPC"), GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0);
if (h != INVALID_HANDLE_VALUE) { CloseHandle(h); return security::internal::debug_results::vm; }

unsigned long pnsize = 0x1000;
Expand Down Expand Up @@ -700,7 +700,7 @@ int security::internal::virtualization::vm() {
{
unsigned long size = 0xFFF;
unsigned char value_name[0x1000] = { 0 };
if (RegQueryValueEx(h_new_key, xor(L"FriendlyName"), 0, 0, value_name, &size) == ERROR_SUCCESS) { to_lower(value_name); if (strstr((char*)value_name, xor("vbox"))) { return security::internal::debug_results::vm; } }
if (RegQueryValueEx(h_new_key, xor_wchar(L"FriendlyName"), 0, 0, value_name, &size) == ERROR_SUCCESS) { to_lower(value_name); if (strstr((char*)value_name, xor("vbox"))) { return security::internal::debug_results::vm; } }
RegCloseKey(HKKK);
}
}
Expand Down
60 changes: 60 additions & 0 deletions xor_cc.hpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,60 @@
#include <iostream>
#include <string>
#include <ctime>

namespace SystemInfo_WIN {
// Gets a timestamp and seed for the random algorithm below
unsigned long long TIME = time(0);
#define XSTR_SEED ((TIME - '0') * 1ull + (TIME - '0') * 10ull + (TIME - '0') * 60ull + (TIME - '0') * 600ull + (TIME - '0') * 3600ull + (TIME - '0') * 36000ull)

// Not sure how secure this algorithm is
constexpr unsigned long long linear_congruent_generator(unsigned rounds) {
unsigned long long sd = 1013904223ull + (1664525ull * ((rounds > 0) ? linear_congruent_generator(rounds - 1) : (XSTR_SEED))) % 0xFFFFFFFF;
if (rounds == 0 && sd % 2 == 1) {
return sd + 1;
}
return sd;
};

// Random algorithm uses ten rounds of the above algorithm
#define Random() linear_congruent_generator(10)
#define XSTR_RANDOM_NUMBER(Min, Max) (Min + (Random() % (Max - Min + 1)))

// Get the ull key
unsigned long long XORKEY = XSTR_RANDOM_NUMBER(0xF000000, 0xFFFFFFF);

template<typename Char >
constexpr Char encrypt_character(const Char character,
int index) {
return character ^ (static_cast<Char>(XORKEY) + index);
}

template <unsigned size, typename Char>
class SystemInfo_WIN_Const {
public:
const unsigned _nb_chars = (size - 1);
Char _string[size];

inline constexpr SystemInfo_WIN_Const(const Char* string)
: _string{}
{
for (unsigned i = 0u; i < size; ++i)
_string[i] = encrypt_character<Char>(string[i], i);
}

const Char* get() const
{
Char* string = const_cast<Char*>(_string);
for (unsigned t = 0; t < _nb_chars; t++) {
string[t] = string[t] ^ (static_cast<Char>(XORKEY) + t);
}
string[_nb_chars] = '\0';
return string;
}

};
}
#define SystemInfo_WIN_d_wchar(my_string) []{ SystemInfo_WIN::SystemInfo_WIN_Const<(sizeof(my_string)/sizeof(wchar_t)), wchar_t> expr(my_string); return expr; }().get()
#define xor_wchar( string ) SystemInfo_WIN_d_wchar( string ) // xors the given wchar string with the generated key
#define SystemInfo_WIN_d(my_string) []{ SystemInfo_WIN::SystemInfo_WIN_Const<(sizeof(my_string)/sizeof(char)), char> expr(my_string); return expr; }().get()
#define xor( string ) SystemInfo_WIN_d( string ) // xors the given string with the generated key