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Resolved False Positive Antivirus Alerts
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@hotline1337
hotline1337 committed Oct 31, 2023
1 parent 85e1608 commit 260ef5e
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Showing 6 changed files with 359 additions and 259 deletions.
61 changes: 32 additions & 29 deletions R3nzSkin_Injector/Injector.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@

#include "Injector.hpp"
#include "R3nzUI.hpp"
#include "xorstr.hpp"
#include "lazy_importer.hpp"

using namespace System;
Expand All @@ -18,6 +19,8 @@ using namespace System::Threading;
using namespace System::Globalization;
using namespace System::Net;

#define xor_clrstr_w(x) msclr::interop::marshal_as<String^>(static_cast<std::wstring>(_XorStrW(x)))

proclist_t WINAPI Injector::findProcesses(const std::wstring& name) noexcept
{
auto process_snap{ LI_FN(CreateToolhelp32Snapshot)(TH32CS_SNAPPROCESS, 0) };
Expand Down Expand Up @@ -57,7 +60,7 @@ bool WINAPI Injector::isInjected(const std::uint32_t pid) noexcept
for (auto i{ 0u }; i < (cbNeeded / sizeof(HMODULE)); ++i) {
TCHAR szModName[MAX_PATH];
if (LI_FN(K32GetModuleBaseNameW)(hProcess, hMods[i], szModName, sizeof(szModName) / sizeof(TCHAR))) {
if (std::wcscmp(szModName, L"R3nzSkin.dll") == 0) {
if (std::wcscmp(szModName, _XorStrW(L"R3nzSkin.dll")) == 0) {
LI_FN(CloseHandle)(hProcess);
return true;
}
Expand Down Expand Up @@ -89,10 +92,10 @@ bool WINAPI Injector::inject(const std::uint32_t pid) noexcept
if (delta > 0)
std::this_thread::sleep_for(std::chrono::seconds(delta));

const auto dll_path{ std::wstring(current_dir) + L"\\R3nzSkin.dll" };
const auto dll_path{ std::wstring(current_dir) + _XorStrW(L"\\R3nzSkin.dll") };

if (const auto f{ std::ifstream(dll_path) }; !f.is_open()) {
LI_FN(MessageBoxW)(nullptr, L"R3nzSkin.dll file could not be found.\nTry reinstalling the cheat.", L"R3nzSkin", MB_ICONERROR | MB_OK);
LI_FN(MessageBoxW)(nullptr, _XorStrW(L"R3nzSkin.dll file could not be found.\nTry reinstalling the cheat."), _XorStrW(L"R3nzSkin"), MB_ICONERROR | MB_OK);
LI_FN(CloseHandle)(handle);
return false;
}
Expand All @@ -111,7 +114,7 @@ bool WINAPI Injector::inject(const std::uint32_t pid) noexcept
}

HANDLE thread{};
LI_FN(NtCreateThreadEx).nt_cached()(&thread, GENERIC_ALL, nullptr, handle, reinterpret_cast<LPTHREAD_START_ROUTINE>(LI_FN(GetProcAddress).get()(LI_FN(GetModuleHandleW).get()(L"kernel32.dll"), "LoadLibraryW")), dll_path_remote, FALSE, NULL, NULL, NULL, NULL);
LI_FN(NtCreateThreadEx).nt_cached()(&thread, GENERIC_ALL, nullptr, handle, reinterpret_cast<LPTHREAD_START_ROUTINE>(LI_FN(GetProcAddress).get()(LI_FN(GetModuleHandleW).get()(_XorStrW(L"kernel32.dll")), _XorStr("LoadLibraryW"))), dll_path_remote, FALSE, NULL, NULL, NULL, nullptr);

if (!thread || thread == INVALID_HANDLE_VALUE) {
LI_FN(VirtualFreeEx).get()(handle, dll_path_remote, 0u, MEM_RELEASE);
Expand All @@ -131,7 +134,7 @@ void WINAPI Injector::enableDebugPrivilege() noexcept
HANDLE token{};
if (OpenProcessToken(LI_FN(GetCurrentProcess).get()(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) {
LUID value;
if (LookupPrivilegeValueW(nullptr, SE_DEBUG_NAME, &value)) {
if (LookupPrivilegeValueW(nullptr, _XorStrW(SE_DEBUG_NAME), &value)) {
TOKEN_PRIVILEGES tp{};
tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = value;
Expand All @@ -147,58 +150,58 @@ void Injector::autoUpdate()
auto client = gcnew WebClient();
ServicePointManager::Expect100Continue = true;
ServicePointManager::SecurityProtocol = SecurityProtocolType::Tls12;
client->Headers->Add(L"User-Agent", L"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0");
client->Headers->Add(xor_clrstr_w(L"User-Agent"), xor_clrstr_w(L"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0"));

try
{
auto json = msclr::interop::marshal_as<std::string>(client->DownloadString(L"https://api.github.com/repos/R3nzTheCodeGOD/R3nzSkin/releases/latest"));
std::regex tagnameRegex("\"tag_name\"\\s*:\\s*\"([^\"]+)");
std::regex urlRegex("\"browser_download_url\"\\s*:\\s*\"([^\"]+)");
std::regex dateRegex("\"created_at\"\\s*:\\s*\"([^\"]+)");
auto json = msclr::interop::marshal_as<std::string>(client->DownloadString(xor_clrstr_w(L"https://api.github.com/repos/R3nzTheCodeGOD/R3nzSkin/releases/latest")));
std::regex tagnameRegex(_XorStr("\"tag_name\"\\s*:\\s*\"([^\"]+)"));
std::regex urlRegex(_XorStr("\"browser_download_url\"\\s*:\\s*\"([^\"]+)"));
std::regex dateRegex(_XorStr("\"created_at\"\\s*:\\s*\"([^\"]+)"));

if (std::smatch tagnameMatch; std::regex_search(json, tagnameMatch, tagnameRegex))
{
auto version = gcnew String(tagnameMatch[1].str().c_str());
if (std::smatch dateMatch; std::regex_search(json, dateMatch, dateRegex))
{
if (!System::IO::File::Exists(L"R3nzSkin.dll"))
if (!System::IO::File::Exists(xor_clrstr_w(L"R3nzSkin.dll")))
{
throw gcnew Exception(L"Failed to find R3nzSkin.dll in the current directory");
throw gcnew Exception(xor_clrstr_w(L"Failed to find R3nzSkin.dll in the current directory"));
}
auto date_of_github_release = DateTime::ParseExact(gcnew String(dateMatch[1].str().c_str()), L"yyyy-MM-ddTHH:mm:ssZ", CultureInfo::InvariantCulture).ToString(L"dd.MM.yyyy HH:00");
auto date_of_current_release = System::IO::File::GetLastWriteTime(L"R3nzSkin.dll").ToString(L"dd.MM.yyyy HH:00");
const auto date_of_github_release = DateTime::ParseExact(gcnew String(dateMatch[1].str().c_str()), xor_clrstr_w(L"yyyy-MM-ddTHH:mm:ssZ"), CultureInfo::InvariantCulture).ToString(xor_clrstr_w(L"dd.MM.yyyy HH:00"));
const auto date_of_current_release = System::IO::File::GetLastWriteTime(xor_clrstr_w(L"R3nzSkin.dll")).ToString(xor_clrstr_w(L"dd.MM.yyyy HH:00"));
if (date_of_current_release != date_of_github_release)
{
auto date_of_github_release_class = DateTime::ParseExact(date_of_github_release, L"dd.MM.yyyy HH:00", CultureInfo::InvariantCulture);
auto date_of_current_release_class = DateTime::ParseExact(date_of_current_release, L"dd.MM.yyyy HH:00", CultureInfo::InvariantCulture);
const auto date_of_github_release_class = DateTime::ParseExact(date_of_github_release, xor_clrstr_w(L"dd.MM.yyyy HH:00"), CultureInfo::InvariantCulture);
const auto date_of_current_release_class = DateTime::ParseExact(date_of_current_release, xor_clrstr_w(L"dd.MM.yyyy HH:00"), CultureInfo::InvariantCulture);
if (date_of_current_release_class > date_of_github_release_class)
{
return;
}

auto result = MessageBox::Show(L"New version is available on GitHub\nWould you like to download it now?", L"R3nzSkin", MessageBoxButtons::YesNo, MessageBoxIcon::Information);
const auto result = MessageBox::Show(xor_clrstr_w(L"New version is available on GitHub\nWould you like to download it now?"), xor_clrstr_w(L"R3nzSkin"), MessageBoxButtons::YesNo, MessageBoxIcon::Information);
if (result == DialogResult::Yes)
{
if (std::smatch urlMatch; std::regex_search(json, urlMatch, urlRegex))
{
auto url = gcnew String(urlMatch[1].str().c_str());
auto file = String::Format(L"R3nzSkin_{0}.zip", version);
auto file = String::Format(xor_clrstr_w(L"R3nzSkin_{0}.zip"), version);
client->DownloadFile(url, file);

System::IO::Compression::ZipFile::ExtractToDirectory(file, L"R3nzSkin");
System::IO::Compression::ZipFile::ExtractToDirectory(file, xor_clrstr_w(L"R3nzSkin"));
System::IO::File::Delete(file);
System::IO::File::Delete(L"R3nzSkin.dll");
System::IO::File::Move(L"R3nzSkin\\R3nzSkin_Injector.exe", String::Format(L"R3nzSkin_Injector_{0}.exe", version));
System::IO::File::Move(L"R3nzSkin\\R3nzSkin.dll", L"R3nzSkin.dll");
System::IO::Directory::Delete(L"R3nzSkin");
System::IO::File::Delete(xor_clrstr_w(L"R3nzSkin.dll"));
System::IO::File::Move(xor_clrstr_w(L"R3nzSkin\\R3nzSkin_Injector.exe"), String::Format(xor_clrstr_w(L"R3nzSkin_Injector_{0}.exe"), version));
System::IO::File::Move(xor_clrstr_w(L"R3nzSkin\\R3nzSkin.dll"), xor_clrstr_w(L"R3nzSkin.dll"));
System::IO::Directory::Delete(xor_clrstr_w(L"R3nzSkin"));

auto process_info = gcnew System::Diagnostics::ProcessStartInfo();
process_info->Arguments = L"/C choice /C Y /N /D Y /T 1 & del \"" + System::Diagnostics::Process::GetCurrentProcess()->MainModule->FileName + L"\"";
process_info->Arguments = xor_clrstr_w(L"/C choice /C Y /N /D Y /T 1 & del \"") + System::Diagnostics::Process::GetCurrentProcess()->MainModule->FileName + xor_clrstr_w(L"\"");
process_info->CreateNoWindow = true;
process_info->FileName = L"cmd.exe";
process_info->FileName = xor_clrstr_w(L"cmd.exe");
process_info->WindowStyle = System::Diagnostics::ProcessWindowStyle::Hidden;
System::Diagnostics::Process::Start(process_info);
System::Diagnostics::Process::Start(String::Format(L"R3nzSkin_Injector_{0}.exe", version));
System::Diagnostics::Process::Start(String::Format(xor_clrstr_w(L"R3nzSkin_Injector_{0}.exe"), version));

Environment::Exit(0);
}
Expand All @@ -209,7 +212,7 @@ void Injector::autoUpdate()
}
catch (Exception^ e)
{
MessageBox::Show(String::Format(L"{0} - {1}", e->Message, e->StackTrace->Substring(5)), L"R3nzSkin", MessageBoxButtons::OK, MessageBoxIcon::Error);
MessageBox::Show(String::Format(xor_clrstr_w(L"{0} - {1}"), e->Message, e->StackTrace->Substring(5)), xor_clrstr_w(L"R3nzSkin"), MessageBoxButtons::OK, MessageBoxIcon::Error);
Environment::Exit(0);
}
}
Expand All @@ -218,8 +221,8 @@ void Injector::run() noexcept
{
enableDebugPrivilege();
while (true) {
const auto& league_client_processes{ Injector::findProcesses(L"LeagueClient.exe") };
const auto& league_processes{ Injector::findProcesses(L"League of Legends.exe") };
const auto& league_client_processes{ Injector::findProcesses(_XorStrW(L"LeagueClient.exe")) };
const auto& league_processes{ Injector::findProcesses(_XorStrW(L"League of Legends.exe")) };

R3nzSkinInjector::gameState = (league_processes.size() > 0) ? true : false;
R3nzSkinInjector::clientState = (league_client_processes.size() > 0) ? true : false;
Expand Down
1 change: 1 addition & 0 deletions R3nzSkin_Injector/R3nzSkin_Injector.vcxproj
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Original file line number Diff line number Diff line change
Expand Up @@ -207,6 +207,7 @@
<FileType>CppForm</FileType>
</ClInclude>
<ClInclude Include="resource.h" />
<ClInclude Include="xorstr.hpp" />
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="R3nzSkin_Injector.rc" />
Expand Down
3 changes: 3 additions & 0 deletions R3nzSkin_Injector/R3nzSkin_Injector.vcxproj.filters
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,9 @@
<ClInclude Include="lazy_importer.hpp">
<Filter>Source Files</Filter>
</ClInclude>
<ClInclude Include="xorstr.hpp">
<Filter>Source Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<Image Include="icon.ico">
Expand Down
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1 comment on commit 260ef5e

@LucasAlfare
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Unfortunatelly in last build released windows still recognizing the injector as virus.

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