mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-25 09:28:20 +00:00
115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
/* DllSecur.c -- DLL loading security
|
|
2022-07-15 : Igor Pavlov : Public domain */
|
|
|
|
#include "Precomp.h"
|
|
|
|
#ifdef _WIN32
|
|
|
|
#include <windows.h>
|
|
|
|
#include "DllSecur.h"
|
|
|
|
#ifndef UNDER_CE
|
|
|
|
#if defined(__GNUC__) && (__GNUC__ >= 8)
|
|
#pragma GCC diagnostic ignored "-Wcast-function-type"
|
|
#endif
|
|
|
|
typedef BOOL (WINAPI *Func_SetDefaultDllDirectories)(DWORD DirectoryFlags);
|
|
|
|
#define MY_LOAD_LIBRARY_SEARCH_USER_DIRS 0x400
|
|
#define MY_LOAD_LIBRARY_SEARCH_SYSTEM32 0x800
|
|
|
|
static const char * const g_Dlls =
|
|
#ifndef _CONSOLE
|
|
"UXTHEME\0"
|
|
#endif
|
|
"USERENV\0"
|
|
"SETUPAPI\0"
|
|
"APPHELP\0"
|
|
"PROPSYS\0"
|
|
"DWMAPI\0"
|
|
"CRYPTBASE\0"
|
|
"OLEACC\0"
|
|
"CLBCATQ\0"
|
|
"VERSION\0"
|
|
;
|
|
|
|
#endif
|
|
|
|
// #define MY_CAST_FUNC (void(*)())
|
|
#define MY_CAST_FUNC
|
|
|
|
void My_SetDefaultDllDirectories()
|
|
{
|
|
#ifndef UNDER_CE
|
|
|
|
OSVERSIONINFO vi;
|
|
vi.dwOSVersionInfoSize = sizeof(vi);
|
|
if (!GetVersionEx(&vi) || vi.dwMajorVersion != 6 || vi.dwMinorVersion != 0)
|
|
{
|
|
Func_SetDefaultDllDirectories setDllDirs = (Func_SetDefaultDllDirectories)
|
|
MY_CAST_FUNC GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "SetDefaultDllDirectories");
|
|
if (setDllDirs)
|
|
if (setDllDirs(MY_LOAD_LIBRARY_SEARCH_SYSTEM32 | MY_LOAD_LIBRARY_SEARCH_USER_DIRS))
|
|
return;
|
|
}
|
|
|
|
#endif
|
|
}
|
|
|
|
|
|
void LoadSecurityDlls()
|
|
{
|
|
#ifndef UNDER_CE
|
|
|
|
wchar_t buf[MAX_PATH + 100];
|
|
|
|
{
|
|
// at Vista (ver 6.0) : CoCreateInstance(CLSID_ShellLink, ...) doesn't work after SetDefaultDllDirectories() : Check it ???
|
|
OSVERSIONINFO vi;
|
|
vi.dwOSVersionInfoSize = sizeof(vi);
|
|
if (!GetVersionEx(&vi) || vi.dwMajorVersion != 6 || vi.dwMinorVersion != 0)
|
|
{
|
|
Func_SetDefaultDllDirectories setDllDirs = (Func_SetDefaultDllDirectories)
|
|
MY_CAST_FUNC GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "SetDefaultDllDirectories");
|
|
if (setDllDirs)
|
|
if (setDllDirs(MY_LOAD_LIBRARY_SEARCH_SYSTEM32 | MY_LOAD_LIBRARY_SEARCH_USER_DIRS))
|
|
return;
|
|
}
|
|
}
|
|
|
|
{
|
|
unsigned len = GetSystemDirectoryW(buf, MAX_PATH + 2);
|
|
if (len == 0 || len > MAX_PATH)
|
|
return;
|
|
}
|
|
{
|
|
const char *dll;
|
|
unsigned pos = (unsigned)lstrlenW(buf);
|
|
|
|
if (buf[pos - 1] != '\\')
|
|
buf[pos++] = '\\';
|
|
|
|
for (dll = g_Dlls; dll[0] != 0;)
|
|
{
|
|
unsigned k = 0;
|
|
for (;;)
|
|
{
|
|
char c = *dll++;
|
|
buf[pos + k] = (Byte)c;
|
|
k++;
|
|
if (c == 0)
|
|
break;
|
|
}
|
|
|
|
lstrcatW(buf, L".dll");
|
|
LoadLibraryExW(buf, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
}
|
|
|
|
#endif
|