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Win32.Cult.B@mm

LOW
VERY LOW
8644 bytes
(W32.HLLW.Cult.B@mm, W32/Lanet@mm)

Symptoms

 


Removal instructions:

 

Analyzed By

Sorin Victor Dudea BitDefender Virus Researcher

Technical Description:

When the worm is executed it copies itself in %WINSYS% folder under the name wuauqmr.exe.
It adds the following registry key:
NvCpTDaemon with value %WINSYS%\wuauqmr.exe under
HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce
and
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
to assure that it will be executed at every restart.
It adds the following registry keyL
Dir0 with value 012345:%SYSDIR%\ jdfghtrg\ under
HKCU\SOFTWARE\KAZAA\LocalContent
In order to set that location as a Kazaa shared folder.
After that it copies itself under %SYSDIR%\ jdfghtrg\ under the following names, in this way it tries to spread using Kazaa network:
zoneallarm_pro_crack.exe
AVP_Crack.exe
SMS_sender.exe
DivX 5.03 Codecs.exe
Download accelarator.exe
PaintShop Pro 7 Crack_By_Force.exe
ZoneAlarm Pro KeyGen.exe
porn.exe
hotgirls.exe
SM.exe
Battlefield1942_bloodpatch.exe
Unreal2_bloodpatch.exe
UT2003_bloodpatch.exe
AquaNox2 Crack.exe
NBA2003_crack.exe
FIFA2003 crack.exe
C&C Generals_crack.exe
UT2003_keygen.exe
UT2003_no cd (crack).exe
Age of Empires 2 crack.exe
Anno 1503_crack.exe
C&C Renegade_crack.exe
Diablo 2 Crack.exe
Gothic 2 licence.exe
GTA 3 Crack.exe
GTA 3 patch (no cd).exe
Hitman_2_no_cd_crack.exe
Mafia_crack.exe
Neverwinter_Nights_licence.exe
NHL 2003 crack.exe
WarCraft_3_crack.exe
Splinter_Cell_Crack.exe
Battlefield1942_keygen.exe
Winamp 3.8.exe
MediaPlayer Update.exe
UT2003_patch.exe
ACDSee 5.5.exe
DivX Video Bundle 6.5.exe
Global DiVX Player 3.0.exe
QuickTime_Pro_Crack.exe
KaZaA Lite (New).exe
iMesh 3.7b (beta).exe
iMesh 3.6.exe
KaZaA Hack 2.5.0.exe
DirectDVD 5.0.exe
Flash MX crack (trial).exe
Ad-aware 6.5.exe
WinZip 9.0b.exe
SmartFTP 2.0.0.exe
ICQ Lite (new).exe
ICQ Pro 2003b (new beta).exe
ICQ Pro 2003a.exe
AOL Instant Messenger.exe
Download Accelerator Plus 6.1.exe
Trillian 0.85 (free).exe
MSN Messenger 5.2.exe
Network Cable e ADSL Speed 2.0.5.exe
mIRC 6.40.exe
GetRight 5.0a.exe
Pop-Up Stopper 3.5.exe
Yahoo Messenger 6.0.exe
KaZaA Speedup 3.6.exe
Nero Burning ROM crack.exe
WindowBlinds 4.0.exe
Animated Screen 7.0b.exe
Living Waterfalls 1.3.exe
Matrix Screensaver 1.5.src
Popup Defender 6.5.exe
Space Invaders 1978.exe
SmartRipper v2.7.exe
TweakAll 3.8.exe
DVD Copy Plus v5.0.exe
Serials 2003 v.8.0 Full.exe
Zelda Classic 2.00.exe
Need 4 Speed crack.exe
Links 2003 Golf game (crack).exe
Netfast 1.8.exe
Guitar Chords Library 5.5.exe
DVD Region-Free 2.3.exe
Cool Edit Pro v2.55.exe
Coffee Cup Free HTML 7.0b.exe
Clone CD 5.0.0.3.exe
Clone CD 5.0.0.3 (crack).exe
Nimo CodecPack (new) 8.0.exe
Business Card Designer Plus 7.9.exe
Steinberg_WaveLab_5_crack.exe
Hot Babes XXX Screen Saver.exe
FreeRAM XP Pro 1.9.exe
IrfanView 4.5.exe
Audiograbber 2.05.exe
WinOnCD 4 PE_crack.exe
Final Fantasy VII XP Patch 1.5.exe
BabeFest 2003 ScreenSaver 1.5.exe
PalTalk 5.01b.exe
DirectX Buster (all versions).exe
DirectX InfoTool.exe
Unreal2_crack.exe
FlashGet 1.5.exe
Babylon 3.50b reg_crack.exe
mp3Trim PRO 2.5.exe
play station emulator crack.exe
play station emulator.exe
warcraft 3 serials.pif
warcraft 3 crack.exe 100 free essays school.scr
aol password cracker.exe
aim password cracker aol cracker.exe
aim cracker.exe steal usernames.exe
how to hack.exe
divx pro.exe
how to use a shell.pif
Virtua Girl (Full).exe
worldbook.exe
GTA 3 Serial.exe
GTA 3 Crack.exe
gta3.exe
driver.exe
virtua girl - adriana.pif virtua girl -bailey short skirt.pif
Crack McAfee 7.exe
Crack Norton 3000.exe
Borland KeyGens.exe
MP3 encoder_decoderV1.8.exe
HackNTTools.zip .exe
SophosCrackAllVersion.exe
BitDefender.KeyGen.exe
Nod32Crack.exe
PANDA.lusers.exe
PANDA.AVers.lusers.exe
The worm also creates the file awqewqed.dll under the %SYSDIR%. The worm uses that file to store its code encoded for sending trough email.
It creates a thread for checking the registry keys from above. In case that somebody removes them it will add them back.
After that the worm tries to send itself to randomly generated e-mail addresses. Those addresses are generated by the following rule:
%rndstring%@%rndserver%
%rndserver% is chosen from the following list:
chello.nl, chello.pl, otenet.gr, earthlink.net, hotmail.com, adelphia.net, planet.nl, wanadoo.nl, wanadoo.fr, sympatico.ca, Gmx.net, Gmx.de, Btinternet.com, Verizon.net, BellAtlantic.net, Email.com
%rndstring% is a random generated string.
The worm sends itself trough e-mail under the following format:
From %name% %name@%rndserver%
%name% is a string randomly chosen from the following list:
Ellen, John, Sandra, Kaylee, Sandy, Morgan, Peter, Michel, Marco, Margret, Horny
Subject:
Hi, I sent you an eCard from BlueMountain.com
Body:
To view your eCard, open the attachment
If you have any comments or questions, please visit
http://www.bluemountain.com/customer/index.pd
Thanks for using BlueMountain.com.
Attachment:
BlueMountaineCard.pif
The worm uses the following hard coded SMTP servers:
smtp.chello.pl
mailsrv.otenet.gr
mx06.earthlink.net
mx4.hotmail.com
mail.adelphia.net
smtp01.wxs.nl
mx-1.wanadoo.nl
smtp.wanadoo.fr
smtp29.sympatico.ca
mx0.gmx.net
mx0.gmx.de
moongate.btinternet.com
relay.verizon.net
relay.bellatlantic.net
205.158.62.23
mx1.hotmail.com
mx2.hotmail.com
The worm tries to do DOS attack at an address randomly chosen between
www.chat-planet.nl with a probability of 33%
and chat.planet.nl witch a probability of 66%