Virus Database

I-Worm.Lovgate.w

Description I-Worm.Lovgate.w

This worm spreads via the Internet as an attachment to infected messages. It is written in MFC.
The worm itself is approximately 125KB in size, packed using ASPack. The unpacked file is approximately 205KB in size.
Installation
Once launched, the worm copies itself under several different names to the Windows system and root directories:
%system%Kernel66.dll
%system%IEXPLORE.exe
%system%hxdef.exe
%system%RAVMOND.exe
%windir%SYSTRA.exe
c:command.exe
It also saves its components in the following files:
%System%NetMeeting.exe
%system%spoolsv.exe
%SysDir%msjdbc11.dll
%SysDir%MSSIGN30.DLL
%SysDir%ODBC16.dll
%SysDir%Lmmib20.dll
It also creates a file named AUTORUN.INF in the root directory of all accessible disks.
The worm creates several copies of itself in ZIP or RAR format. These copies are saved under random names in the root directories of all accessible disks.
It registers several copies of itself in the system registry. This ensures that these copies will be launched every time Windows is restarted.
[HKLMSoftwareMicrosoftWindowsCurrentVersionRun]
"WinHelp"="%System%WinHelp.exe"
"Hardware Profile"=""="%system%hxdef.exe"
"Microsoft NetMeeting Associates, Inc."="NetMeeting.exe"
"Program in Windows"="%System%IEXPLORE.EXE"
"Protected Storage"="RUNDLL32.EXE MSSIGN30.DLL ondll_reg"
"VFW Encoder/Decoder Settings"="RUNDLL32.exe MSSIGN30.DLL ondll_reg"
[HKLMSoftwareMicrosoftWindows NTCurrentVersionWindows]
"run"="RAVMOND.exe"
It also creates the following system registry value:
[HKLMSoftwareMicrosoftWindowsCurrentVersionRunServices]
"SystemTra"="%Windir%Systra.exe"
It creates an additional registry value to flag its presence in the system:
HKLMSoftwareMicrosoftWindowsCurrentVersionMXLIB1
Propagation via local networks
It makes the Ó:windowsMedia folder accessible via the local network under the name \Media.
It copies itself to all network disks under the following names:
autoexec.bat
Cain.pif
client.exe
Documents and Settings.txt.exe
findpass.exe
i386.exe
Internet Explorer.bat
Microsoft Office.exe
mmc.exe
MSDN.ZIP.pif
Support Tools.exe
Windows Media Player.zip.exe
WindowsUpdate.pif
winhlp32.exe
WinRAR.exe
xcopy.exe
The worm attempts to copy itself to all local network machines by using the Adminstrator account. It uses the following passwords to attempt to gain access to the account:

!@#$
!@#$%
!@#$%^
!@#$%^&
!@#$%^&*
0
000000
00000000
007
1
110
111
111111
11111111
12
121212
123
123123
1234
12345
123456
1234567
12345678
123456789
123abc
123asd
2003
2004
2600
321
54321



654321
666666
888888
88888888
a
aaa
abc
abc123
abcd
abcdef
abcdefg
admin
Admin
admin123
administrator
Administrator
alpha
asdf
asdfgh
computer
database
enable
god
godblessyou
guest
Guest
home
Internet
Login
login
love



mypass
mypass123
mypc
mypc123
oracle
owner
pass
passwd
password
Password
pc
pw
pw123
pwd
root
secret
server
sex
sql
super
sybase
temp
temp123
test
test123
win
xp
xxx
yxcv
zxcv




If the worm succeeds in establishing a connection, it copies itself to admin$system32NetManager.exe and launches the file as 'Windows Management NetWork Service Extensions'.
Propagation via email
The worm sends itself to all addresses on emails in the Inbox. It also searches files with extensions listed below for email addresses to send itself to:
adb
asp
dbx
htm
htm
php
pl
sht
tbb
wab
Infected messages
Infected messages contain the following text:
If you can keep your head when all about you
Are losing theirs and blaming it on you;
If you can trust yourself when all men doubt you,
But make allowance for their doubting too;
If you can wait and not be tired by waiting,
Or, being lied about,don't deal in lies,
Or, being hated, don't give way to hating,
And yet don't look too good, nor talk too wise;
all ... more look to the attachment.

< Get your FREE <sender's domain>now! <
Attachment name (chosen at random from the list below):
Britney spears nude.exe.txt.exe
Deutsch BloodPatch!.exe
dreamweaver MX (crack).exe
DSL Modem Uncapper.rar.exe
How to Crack all gamez.exe
I am For u.doc.exe
Industry Giant II.exe
joke.pif
Macromedia Flash.scr
Me_nude.AVI.pif
s3msong.MP3.pif
SETUP.EXE
Sex in Office.rm.scr
Shakira.zip.exe
StarWars2 - CloneAttack.rm.scr
the hardcore game-.pif
The worm also sends itself using its own SMTP server.
Message header (chosen at random from the list below):
Error
hi
hello
Mail Delivery System
Mail Transaction Failed
Server Report
Status
test
Message body (chosen from those listed below):
It's the long-awaited film version of the Broadway hit. The message sent as a binary attachment.

The message contains Unicode characters and has been sent as a binary attachment.

Mail failed. For further assistance, please contact!
Attachment name:
randomly generated, with one of the following extensions.
.exe
.scr
.pif
.cmd
.bat
.zip
.rar .
Other
It terminates processes containing the following text strings in their names:
Duba
Gate
KAV
kill
KV
McAfee
NAV
RavMon.exe
Rfw.exe
rising
SkyNet
Symantec

Rising Realtime Monitor Service
Symantec Antivirus Server
Symantec Client
The worm harvests information about the victim machine, saves it in a file named c:Netlog.txt and sends this file to the worm's author via email.
It installs a backdoor on TCP port 6000 to receive commands.
It launches an FTP server without login or password on a random port.
The worm searches all accessible disks from C: to Z: for files with the extension .exe. It then renames them as *.zmx, ascribes the attribute 'hidden/ system' to these files, and copies itself to the original files under the original names (working in the same way as companion viruses do.)

Check other viruses! Be aware! Use Antiviral Software

I-Worm.Bridex.a

Description I-Worm.Bridex.a

Bridex (aka Brid) is an email worm virus spreading via the Internet in the form of an attachment to infected emails. The worm itself is a Windows PE EXE file about 115KB in length and is written in Visual Basic.
To run from infected messages the worm uses the IFRAME security breach.
The infected messages have an empty subject field.
The attached worm copy (file)is named README.EXE
The message body looks as follows:
Hello,
Product Name: < data >
Product Id: < data >
Product Key: < data >
Process List: < data >
Thank you.

where < data > represents personal data from the infected machine, for example:
Hello,
Product Name: Microsoft Windows 98
Product Id: 50392-668-0444778-23555
Process List: NoneNone
Thank you.

Some of lines above (except the first and last lines) may be absent in infected emails (this happens when the worm fails to read or determine necessary data).
Installing
While installing the worm copies itself to the Windows system directory under the name REGEDIT.EXE, and to the Windows Desktop directory under the name EXPLORER.EXE, and then registers itself as the first file in system registry auto-run key:
HKCUSoftwareMicrosoftWindowsCurrentVersionRun regedit = %WinSystem% egedit.exe
While installing the worm also looks for Anti-Virus applications and tries to terminate them.
Spreading
To get victim email addresses the worm scans all *.HTM and *.DBX files for email-like strings (except @microsoft.com addresses). It proceeds to send itself to all acceptable addresses found.
To send infected messages the worm uses a direct connection to the default SMTP server.
While spreading the worm creates temporary files:
Help.eml - in Windows Desktop directory Brade0.tmp Brade1.tmp - both in Windows Temp directory
Payload
Depending on its "counters" the worm opens the Web sites:
http://www.hotmail.com
http://www.sex.com

The Bridex worm also drops a variant of the Funlove virus into the MSCONFIG.EXE file in the Windows System directory.

I-Worm.Brit

Description I-Worm.Brit

I-worm.Brit is a simple worm that spreads via e-mail and by IRC channels.
This worm gets into a computer in the form of an e-mail message with the attached file "CHM", which contains the worm. The message has the following characteristics:
Message theme: "RE: Britney Pics"

Message text: Take a look at these pics all
Regards,
%CurrentUser.Name%
Where %CurrentUser.Name% User Name.
Attached file name: BRITNEY.CHM
For the VBS-script to launch the worm needs ActiveX - therefore it tries to get users to turn ActiveX on by displaying the following message:

"Turn on ActiveX to see a photograph of Britney Spears".
While launching the worm finds the catalog containing the mIRC-client (a client that works with IRC system) and creates in it the file "SCRIPT.INI". In this file the worm scripts the mIRC client commands that send the worm to each computer included in the same channel as the infected computer.
After creating the file "SCRIPT.INI" the worm sends out a copy of itself to the first address in the MS Outlook address book and records a copy of itself in the Windows catalog.



Brit.g
- also known as Chick.f
Currently, Kaspersky Labs is familiar with five different versions of this program - b,c,d,e,f,g - , distinguished by their subjects and attachment file names.
The author of the most recent version, Brit.g, attempts to draw attention by exploiting today's most popular theme as bait - The World Cup football championship.
Brit.g:
Message Subject - RE: Korea Japan Results
Attachment File Name - KOREAJAPAN Results

However, due to a range of technical errors in the worm's code, the probability of it spreading "in the wild" is virtually zero.

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