Email-Worm.Win32.Toil

Class Email-Worm
Platform Win32
Description

Technical Details

This is a virus-worm that spreads via the Internet attached to infected
e-mail, and infects Win32 applications on local computers and network
resources. It uses the {“Win32.InvictusDLL”:Win32_InvictusDLL} library to
infect files.

The structure of infected files appears as follows:

 �=====================�
 � infected            �
 � file host           �
 �                     �
 �--------------------��
 ��polymorphic code   ��
 �� INVICTUS          ��
 ��                   ��
 �+-------------------+�
 ��body INVICTUS.DLL  ��
 �+-------------------+�
 ��worm body          ��
 �L--------------------�
 L=====================-

When an infected file is launched, the control flow is passed to INVICTUS
library polymorphic code – this is done either immediately, if the entry
point of the program points directly to the virus code, or depending on the
host’s structure, if “Entry Point Obscuring” was used. This code decrypts
and creates, on a disk, the INVICTUS.DLL library in a %SYSTEM% folder, and the
worm’s code in a %TEMP% folder with a random file name, and then launches the worm.

The worm’s file is a Windows application (PE EXE file) about 8 Kb in length, and is written in assembler.

Installation

When the worm is launched, it installs itself in the system, and then
activates its routine of sending e-mail messages, and infecting Win32 files,
and the payload routine.

While installing, the worm copies itself to a Windows diirectory with a arandom
file name, and writes the following values to SYSTEM.INI:

[boot]
shell=Explorer.exe %worm name%

This is done so the worm doesn’t launch upon Windows startup (only in Windows
9x/ME).

Spreading

The worm uses a “ICQ White pages” search engine to find e-mail addresses.
It sends a search query to the engine, and then extracts e-mail addresses
from the search results (from a HTML-page which contains search results). The
words for the search query are chosen from the following list:

MPB
sex
history
mp3
friends
airplane
ferrari
orgasm
friendship
fuck
love
sports
party
pussy
USA
audio

The worm sends infected messages to all e-mail found. The worm uses a
direct connection to an SMTP server, which is selected by the worm.

Infected messages contain an empty body, and its subject is selected from the
following list:

Bin Laden toillete paper !!
Sadam hussein & BinLaden IN LOVE
Bush fucks Bin Laden hardly <:P
Is Osama Bin Laden BAD-LOVED ?
USA against Geneva Convention ?
Anthrax mail is true(not a joke)
Biological weapons: Preventing !
Fucking a mullah in Islamabad
O papel higienico do Bin Laden !
Sadam e BinLaden apaixonados
Bush fudendo Bin Laden <:P
Ser� que o Osama � mal-amado ?
EUA agride conven�ao de genova ?
Antraz pelo correio (verdade)
Armas biologicas: Previna-se !
Fudendo um mul� em Islamabad
Bin Landen Toalettpapper
Sadam hussein & BinLaden �r f�r�lsk
ade Bush knullar Bin Laden h�rt <:P
�r Osama Bin Laden inte �lskad ?
�r USA emot Geneve �verenskom melsen ?
Anthrax brevet existerar(det �r inget sk�mt)
Biologiska vapen: F�rhindra !
Knulla en muslim i Islamabad
papier toillette Bin Laden
Sadam & BinLaden EN AMOUR
Bush nique � donf Bin Laden <:P
Osama Bin Laden Mal Aim� ?
Usa contre la convention de Geneve?
Le courrier Anthrax existe vraiment
Arme Biologique: Pr�ventions!
Baiser un mullah � Islamabad
Xarti toualetas Bin Landen !!
Hussein & Bin Laden, ERASTES
O Bush gamaei agria ton Bin Laden
Einai o Osama apotuximenos ston erwta?
Amerikh enantia sto synedrio tis Genova?
H epistoles me Antraka,einai gegonos
Biologika wpla: Prostasia !
Gamontas ena Moula sto Islamabad

Attachment name: BINLADEN_BRASIL.EXE

The worm uses an IFRAME security breach in Microsoft Internet Explorer in its messages,
so it may launch automatically when an infected message is being viewed.

Infecting files on local disks

The worm infects the following files in a Windows directory:

HH.EXE
NETSTAT.EXE
CALC.EXE

Also, the worm finds all programs in the Windows applog (most applications launched on the computer are registered here), and infects them.
Then, the worm finds a launched copy of EXPLORER.EXE, closes it and
infects the file.

Infecting files on network resources

The worm enumerates network resources (remote disks and directories), and
connects to them. It tries to copy itself to network resources with a random
filename to the following directories:

WIN
WIN2000
WIN2K
WINNT
WINDOWS
WINXP

and registers itself in a remote system to start automatically with Windows
(Windows 9x/ME only).

Payload routine

Depending on the random counter, the worm draws the following string
a random number of times with a random color:

ALA DIO GOTT ZEUS JEOVA KRISHNA OXALA DIEU GOD SHIVA TUPA DIOS DEUS

and displays a message box:

Then the worm “sleeps” for 10 seconds, and disarranges the contents of the
screen.

Other

The worm tries to find and close the following windows:

Antiviral Toolkit Pro
AVP Monitor
Norton AntiVirus
Zone Alarm
Freedom
Avconsol
McAfee VirusScan
Vshwin32

The worm creates the following registry key:

HKLMSoftwareMicrosoftWindowsCurrentVersionNetworkLanManBinLaden

and sets its values so that it allows to for full access to the C: drive from a local
network.

The worm deletes the following registry key:

HKLMSystemCurrentControlSetServicesVxDNAVAP

and the following registry value:

HKLMSoftwareMicrosoftWindowsCurrentVersionRun
Norton Auto-Protect

The worm writes all cached network passwords to %WINDOWS%BinLaden.ini.

The worm contains the following text:

Greetz: Alevirus, Anaktos, Satanicoder, Ultras, Vecna, Z0mbie, all ppl in #vxers
And of course, Osama Bin Laden. Keep the good job with Antrhax, man !
irc.undernet.org | #vxers
www.nbk.hpg.com.br
www.coderz.net/mtxvx
Coded by NBK[MATRiX]
Every brazilian HATES USA … Just try to get Amazon FROM US