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Roblox blocks DLL injection
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I wrote C# DLL injector (a little bit changed WRD API):
byte[] bytes = Encoding.ASCII.GetBytes("test.dll");
IntPtr hModule = LoadLibraryA("kernel32.dll");
UIntPtr procAddress = GetProcAddress(hModule, "LoadLibraryA");
FreeLibrary(hModule);
if (procAddress == UIntPtr.Zero)
return false;
IntPtr hProcess = OpenProcess(ProcessAccess.AllAccess, false, RobloxProcessId);
if (hProcess == IntPtr.Zero)
return false;
IntPtr num = VirtualAllocEx(hProcess, (IntPtr)0, (uint)bytes.Length, 12288U, 4U);
return !(num == IntPtr.Zero) && WriteProcessMemory(hProcess, num, bytes, (uint)bytes.Length, out UIntPtr _) && !(CreateRemoteThread(hProcess, (IntPtr)0, 0U, procAddress, num, 0U, out IntPtr _) == IntPtr.Zero);Here is dllmain.cpp:
#include <Windows.h>
extern "C" {
#include "lua\lua.h"
#include "lua\lua.hpp"
#include "lua\lualib.h"
#include "lua\lauxlib.h"
#include "lua\luaconf.h"
#include "lua\llimits.h"
}
DWORD WINAPI LuaPipe(PVOID lvpParameter)
{
HANDLE hPipe;
char buffer[4000];
DWORD dwRead;
hPipe = CreateNamedPipe(TEXT("\\\\.\\pipe\\PipeLua"),
PIPE_ACCESS_DUPLEX,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
PIPE_UNLIMITED_INSTANCES,
4000,
4000,
NMPWAIT_USE_DEFAULT_WAIT,
NULL);
while (hPipe != INVALID_HANDLE_VALUE)
{
if (ConnectNamedPipe(hPipe, NULL) != FALSE)
{
while (ReadFile(hPipe, buffer, sizeof(buffer) - 1, &dwRead, NULL) != FALSE)
{
buffer[dwRead] = '\0';
try {
if (strlen(buffer) != NULL) {
lua_State* luaS = luaL_newstate();
lua_State* LuaS = lua_newthread(luaS);
luaL_openlibs(LuaS);
std::string total;
if (luaL_dostring(LuaS, buffer)) {
lua_pop(LuaS, 1);
}
else {
lua_settop(LuaS, 0);
lua_close(LuaS);
}
}
}
catch (...) {}
}
}
DisconnectNamedPipe(hPipe);
}
return 0;
}
BOOL APIENTRY DllMain( HMODULE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
switch (ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
MessageBox(NULL, TEXT("Hello from Dll"), TEXT("Hi"), 0);
DisableThreadLibraryCalls(hModule);
CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)LuaPipe, NULL, NULL, NULL);
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}Injection to Roblox process doesn't work, but if I change RobloxProcessId to something different (for example notepad pid) it works fine.
How do I fix this?
Replied
it is probably injecting to the second roblox process,
Process[] processes = Process.GetProcessesByName("RobloxPlayerBeta");
int pid = 0;
try
{
pid = processes[0].Id;
}
catch (FormatException)
{
return;
}using get processbyname then converting it into the pid it should work but however setting the process name to RobloxPlayerBeta.exe will not work it has to be without the .exe at the end.
hope it helped
this is a c# example btw i dont know cpp
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Replied
@75975 I start Roblox process from C# like this:
RobloxProcess = Process.Start(Path.Combine(RobloxPlayerDirectory, "RobloxPlayerBeta.exe"), "-app");
while (RobloxProcess.MainWindowHandle == IntPtr.Zero)
Thread.Sleep(100);
RobloxProcessId = RobloxProcess.Id;Cancel
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Replied
@75975 I'm starting the exe file. It won't work if I remove exe. Do you really can answer this question or you one of this fake programmers?
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Replied
I don't know if it works, but vouch.
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Random quote here...
Replied
@67078No? it doesn't. Roblox blocks injection.
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Added
@89215 I got this code from WRD API. I replaced all (IntPtr)0 to IntPtr.Zero that I mentioned but missed this. So it's not my fault.
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"Questionable intellegence, but I like the mystery" - CubeFaces
https://cdn.discordapp.com/attachments/1136067487847415848/1138948596679589898/sig.png
Replied
@89215 I got the code only for injecting and added some changes.
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Added
It doesn't work anyway so answer the question please.
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Added
@Gulg
if you wanna skid something, pls skid an open src project and actually learn from it
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Added
I would have given you the code to fix this, but your big ego has made me revise my decision
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Replied
Ok. Sorry everyone, I got mad. No more swearing. I got code from an open source project named Axon. But the code didn't work. So I tried taking code from WRD API. It uses same kernel32 functions but a little other way. It didn't work too. The problem wasn't in the code: I tried exploiting notepad and it worked. The problem was in Roblox. Can you help me, please. Sorry for this again, it's my fault. I didn't describe the problem and was mad.
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