Alias:I-Worm.Lentis.gen [KAV], W32/Yaha.t@MM [McAfee], W32/Yaha-T [Sophos], I-Worm.Lentin.t, W32/Yaha, W32.Yaha.T@mm
Type:Worm 
Size:51,424 Bytes 
Origin: 
Date:00-00-0000 
Damage:Sent by email. 
VDF Version:6.23.00.00 
Danger:Medium 
Distribution:High 

DistributionThe worm looks for email addresses in: Windows Address Book, MSN Messenger, .NET Messenger, Yahoo pager, *.ht* files. It uses its own SMTP engine to spread. The email contains:

Subject:
Are you in Love
I am in Love
I Love You
You are so sweet
The Hotmail Hack
U realy Want this
to ur lovers
to ur friends
Find a good friend
Learn How To Love
Are you looking for Love
Wowwwwwwwwwww check it
Check ur friends Circle
The world of Friendship
Shake it baby
How sweet this Screen saver
war Againest Loneliness
Need a friend?
Say 'I Like You' To ur friend
love speaks from the heart
Let's Dance and forget pains
Looking for Friendship
True Love
make ur friend happy
Who is ur Best Friend
hey check it yaar
Check this sh*t
Hello
Are you the BEST
Free Win32 API source
Learn SQL 4 Free
I Love You..
Wanna be like a stone ?
Are you a Soccer Fan ?
Sexy Screensavers 4 U
Check it out
Sample Playboy
Hardcore Screensavers 4 U
XXX Screensavers 4 U
We want peace
Wanna be a HE-MAN
Visit us
One Virus Writer's Story
One Hacker's Love
World Tour
Whats up
Wanna be my sweetheart ??
Screensavers from Club Jenna
Jenna 4 U
Free rAVs Screensavers
Feel the fragrance of Love
Wanna Hack ??
Sample KOF 2002
The King of KOF
Wanna Brawl ??
Wanna Rumble ??
Play KOF 2002 4 Free
Demo KOF 2002
Free Demo Game
Wanna be friends ??
Need money ??
Are you beautiful
Who is your Valentine
Free Screenavers of Love
Free XXX
Free Screensavers
WWE Screensavers
Freak Out
Wanna be friends ?
Things to note
Lovers Corner
Patch for Elkern.gen
Patch for Klez.H
Free Screensavers 4 U
Project
Sample Screensavers

Body:

hey,
did u always dreamnt of hacking ur friends hotmail account..
finally i got a hotmail hack from the internet that really works..
ur my best friend thats why sending to u..
check it..just run it..enter victim's address and u will get the pass.

hi,
check the attached love screensaver
and feel the fragrance of true love..

Hi,
check the attached screensaver..
its really wonderfool..
i got it from freescreensavers.com

Hi,
check ur friends circle using the attached friendship screensaver..
check the attached screensaver
and if u like it send it to all those you consider
to be true friends... if it comes back to you then
you will know that you have a circle of friends..

Hi,
check the attached screensaver
and enjoy the world of friendship..
Hi,
are u in a rocking mood...
check the attached scrennsaver and start shaking..

Hi,
Check the attached screensaver..

Hi,
Are you lonely ??..
check the attached screensaver and
forget the pain of loneliness

Hi,
Looking for online pals..
check the attached friend finder software..

Hi,
sending you a screensaver..
check it and let me know how it is...

Hi,
Check the attached screensaver
and feel the fragrance of true love...

Hey,
I just got this wonderfull screensaver from freescreensaver.com..
Just check it out and let me know how it is..
I just came across it.. check out..
============================================================= ========
Are you one of those unfortunate human beings who are desperately
looking for friends.. but still not getting true friends with whom
you can share your everything.. anyway you wont feel down any more cause GC Chat Network has brought
up a global chat and online match making system using its own GC
Messenger. Attached is the fully functional free version of GC
Instant Messenger and Match Making client..
Just install, register an account with us and find thousands of online
pals all over the world..
You can also search for friends by specific country,city,region etc. Regards Admin,
GC Global Chat Network System..

Hi,
So you think you are in love..
is it true love ? you may think right now that you are in
true love but it is certainly possible that it is nothing
but a mere infatuation to you.. anyway to know yourself better than you have ever known check
the attached screensaver and feel the fragrance of true love..

Hey pal,
you know friendship is like a business...
to get something you need to give something..
though its not that harsh as business but to
get love and care from your friends you need to give
love,care and respect to your friends.. right {BR>
check the attached screensaver and you will learn how to
make your friends happy..

Hi,
Its quite obvious that in our life we have numerous friends
but.. BUT Best Friend can only be ONE.. right {BR>so can you decide who is your best friend {BR>i guess not.. cause mostly you will find that your best friend
wont care about u like somebody else.. anyway i found one way to find who is my best friend..
check it..
just check the attached screensaver.. answer some questions
in it and also ask your best friend to answer the questions.. ..then you will know more about him..

Hey pal,
wanna have some fun in life... {BR>feel like life is too boring and monotonous..
check the attached screensaver and bring colours
to your black & white life.. :)

Hi,
I just came across this funny screensaver..
sending it to u.. hope u like it..
check out and die laughing.. :) This E-Mail is never sent unsolicited. If you receive this
E-Mail then it is because you have subscribed to the official
newsletter at the KOF ONLINE website. King Of Fighters is one of the greatest action game ever made.
Now after the mind boggling sucess of KOF 2001 SNK proudly
presents to you KOF 2002 with 4 new charecters.
Even though we need no publicity for our product but this
time we have decided to give away a fully functional trial
version of KOF 2002. So check out the attached trial version
of KOF 2002 and register at our official website to get a free
copy of KOF2002 original version Best Regards,
Admin,KOF ONLINE..

Hello, I just came across your email ID while searching in the Yahoo profiles.
Actually I want a true friend 4 life with whom I can share my everything.
So if you are interested in being my friend 4 life then mail me. If you wanna know about me, attached is my profile along with some of my
pics. You can check and if you like it then do mail me.
I will be waiting for your mail. Best Wishes,
Your Friend..

Hello,
Looking for some Hardcore mind boggling action ?
Install the attached browser software and browse
across millions of paid hardcore sex sites for free.
Using the software you can safely and easily browse
across most of the hardcore XXX paid sites across the
internet for free. Using it you can also clean all
traces of your web browsing from your computer. Note:The attached browser software is made exclusivley
for demo only. You can use the software for a limited
time of 35 days after which you have to register it
at our official website for its furthur use. Regards,
Admin.

Klez.H is the most common world-wide spreading worm.It's very dangerous by corrupting your files. Because of its very smart stealth and anti-anti-virus technic,most common AV software can't detect or clean it. We developed this free immunity tool to defeat the malicious virus. You only need to run this tool once,and then Klez will never come into your PC

Hello,
The attached product is send as a part of our official campaign
for the popularity of our product.
You have been chosen to try a free fully functional sample of our
product.If you are satified then you can send it to your friends.
All you have to do is to install the software and register an account
with us using the links provided in the software. Then send this software
to your friends using your account ID and for each person who registers
with us through your account, we will pay you $1.5.Once your account reaches
the limit of $50, your payment will be send to your registration address by
check or draft.
Please note that the registration process is completely free which means
by participating in this program you will only gain without loosing anything. Best Regards,
Admin,

Attachment:
The_Best.scr
Codeproject.scr
SQL_4_Free.scr
I_Love_You.scr
Stone.scr
Sex.scr
Soccer.scr
Real.scr
Plus6.scr
Plus2.scr
Playboy.scr
Hardcore4Free.scr
xxx4Free.scr
Screensavers.scr
Peace.scr
Body_Building.scr
Services.scr
VXer_The_LoveStory.scr
Hacker_The_LoveStory.scr
World_Tour.scr
up_life.scr
Sweetheart.scr
Sexy_Jenna.scr
Jenna_Jemson.scr
zDenka.scr
Ravs.scr
Free_Love_Screensavers.scr
Romeo_Juliet.scr
Hacker.scr
KOF_Fighting.exe
KOF_Sample.exe
KOF_Demo.exe
KOF_The_Game.exe
KOF2002.exe
King_of_Figthers.exe
KOF.exe
My_Sexy_Pic.scr
MyProfile.scr
Ways_To_Earn_Money.exe
Beautifull.scr
Valentines_Day.scr
zXXX_BROWSER.exe
Britney_Sample.scr
THEROCK.scr
FreakOut.exe
MyPic.scr
Notes.exe
Cupid.scr
FixElkern.com
FixKlez.com
Romantic.scr
Project.exe
Love.scr

From: the false sender's address contains:
Klein Anderson
Codeproject
SQL Library
me2K
Rocking Stone
Super Soccer
Sexy Screensavers
Real Inc.
Plus 6
Plus 2
Playboy Inc.
Hardcore Screensavers
XXX Screensavers
Nomadic Screensavers
Keanu Stevenson
Nicolas Schwarzeneggar
admin@hackersclub.com
admin@viruswriters.com
admin@hackers.com
Paul Owen
Benting
Veronica Anderson
Club Jenna
Jenna Jameson
Zdenka Podkapova
Raveena Pusanova
Screensavers of Love
Romeo & Juliet
Jaucques Antonio Barkinstein
Cathy Kindergarten
KOF Online
Omega Rugal
Terry Bogard
Iori Yagami
Kyo Kusanagi
Clark Steel
Ralph Jones
Jasmine Stevens
Ross Anderson
John Vandervochich
American Beauty
Valentine Screensavers
Lovers Screensavers
zporNstarS
britneyspears.org
The Rock
Noopman
Susan
Jonathan
Cupid
McAfee Inc.
Norton Antivirus
Trend Micro
Romantic Screensavers
Jericho
Love Inc.

and:
kl@aminoprojects.com
admin@codeproject2.com
free@sql.library.com
me@me2K.com
stone@esterplaza.com
marketing@suppersoccer.com
free@sexyscreensavers.com
sales@real.com
plus@real.com
sales@playboy.com
free@hardcorescreensavers.com
free@xxxscreensavers.com
kkn@k2k.comscreensavers@nomadic.com
nics@noma.com
admin@hackersclub2.com
admin@hackers2.com
paul@kqscore2.com
btq@2632.com
services@tcsonline2.com
admin@clubjenna.com
jenna@jennajameson.com
zdenka@zpornstars.com
ravs@go2pussy.com
love@lovescreensavers.com
DNA_seraph@163.com
super@21cn.com
cathy@21cn.com
admin@kofonline2.com
zhouyuye@citiz.net
lubing@7135.com
hamada@seikosangyo.com
luoairong@21cn.com
valentinescreensavers@t2k.com
screensavers@lovers.com
admin@zpornstars.com
newsletters@britneyspears.org
therock@wwe.com
ericpan@online.com.pk
samsun@online.sh.cn
yjworks@online.sh.cn
cupid@freescreensavers.com
av_patch@mcafee.com
av_patch@norton.com
av_patch@trendmicro.com
romanticscreensavers@love.com
caijob@online.sh.cn
loverscreensavers@love.com

Technical DetailsThe worm copies itself as the following hidden files:
C:\%SystemDIR%\WINTSK32.EXE
C:\%SystemDIR%\EXELDR32.EXE

It makes the autostart registry entries:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run MicrosoftServiceManager %SystemDIR%\WINTSK32.EXE
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices MicrosoftServiceManager %SystemDIR%\WINTSK32.EXE

To be activated every time an .exe file is opened, the worm modifies the registry:
HKEY_LOCAL_MACHINE\Software\Classes\exefile\shell\open\command "%SystemDIR%\exeldr32.exe"%1 %*

It copies itself in C:\%Windir%\%Systemdir% as:
Hotmail_hack.exe
Friendship.scr
World_of_friendship.scr
Shake.scr
Sweet.scr
Be_happy.scr
Friend_finder.exe
I_like_you.scr
Love.scr
Dance.scr
Gc_messenger.exe
True_love.scr
Friend_happy.scr
Best_friend.scr
Life.scr
Colour_of_life.scr
Friendship_funny.scr
Funny.scr

If the name of antivirus and firewalls processes contain the following strings, the worm will terminate them:
_avp32
_avp32.exe
_avpcc
_avpcc.exe
_avpm
_avpm.exe
Ackwin32
Ackwin32
Ackwin32.exe
Ackwin32.exe
Advxdwin
Advxdwin.exe
Agentw.exe
Alertsvc
Alertsvc.exe
Alogserv
Alogserv
Alogserv.exe
Alogserv.exe
Amon9x
Amon9x.exe
Anti-trojan
Anti-trojan.exe
Ants
Ants.exe
Apvxdwin
Apvxdwin
Apvxdwin.exe
Apvxdwin.exe
Atcon
Atcon.exe
Atupdater
Atupdater.exe
Atwatch
Atwatch.exe
Autodown
Autodown
Autodown.exe
Autodown.exe
Autodown.exe
Autotrace
Autotrace.exe
Avconsol
Avconsol.exe
Avgcc32
Avgcc32.exe
Avgctrl
Avgctrl
Avgctrl.exe
Avgctrl.exe
Avgserv
Avgserv
Avgserv.exe
Avgserv9
Avgserv9.exe
Avgw
Avgw.exe
Avkpop
Avkpop.exe
Avkserv
Avkserv.exe
Avkservice
Avkservice.exe
Avkwctl9
Avkwctl9.exe
Avp
Avp.exe
Avp32
Avp32.exe
Avpcc
Avpm
Avpm
Avpm.exe
Avpm.exe
Avsched32
Avsched32.exe
Avsynmgr
Avsynmgr
Avsynmgr
Avsynmgr.exe
Avwinnt
Avwinnt.exe
Avxmonitor9x
Avxmonitor9x.exe
Avxmonitornt
Avxmonitornt.exe
Avxquar
Avxquar.exe
Avxquar.exe.exe
Avxw
Avxw.exe
Blackd
Blackd
Blackd.exe
Blackd.exe
Blackice
Blackice.exe
Cdp.exe
Cfgwiz
Cfgwiz.exe
Claw95
Claw95
Claw95.exe
Claw95.exe
Claw95cf
Claw95cf
Claw95cf.exe
Claw95cf.exe
Cleaner
Cleaner.exe
Cleaner3
Cleaner3.exe
Cmgrdian
Cmgrdian
Cmgrdian.exe
Connectionmonitor
Connectionmonitor.exe
Cpd Cpd.exe
Cpdclnt
Cpdclnt.exe
Cpdclnt.exe
Ctrl
Ctrl.exe
Defalert
Defalert.exe
Defscangui
Defscangui.exe
Defwatch
Defwatch.exe
Doors
Doors.exe
Dvp95
Dvp95.exe
Dvp95_0
Dvp95_0.exe
Efpeadm
Efpeadm.exe
Efpeadm.exe
Etrustcipe
Etrustcipe.exe
Etrustcipe.exe
Evpn
Evpn.exe
Evpn.exe
Expert
Expert.exe
F-agnt95
F-agnt95.exe
Fameh32
Fameh32.exe
Fch32
Fch32.exe
Fih32
Fih32.exe
Fnrb32
Fnrb32.exe
F-prot
F-prot.exe
F-prot95
F-prot95.exe
Fp-win
Fp-win.exe
Frw
Frw.exe
Fsaa
Fsaa.exe
Fsav32
Fsav32.exe
Fsgk32
Fsgk32.exe
Fsm32
Fsm32.exe
Fsma32
Fsma32.exe
Fsmb32
Fsmb32.exe
F-stopw
F-stopw
F-stopw.exe
F-stopw.exe
Gbmenu
Gbmenu.exe
Gbpoll
Gbpoll
Gbpoll.exe
Gbpoll.exe
Generics
Generics.exe
Guard
Guard.exe
Guarddog
Guarddog.exe
Iamapp
Iamapp
Iamapp.exe
Iamapp.exe
Iamserv
Iamserv
Iamserv.exe
Iamserv.exe
Iamstats
Iamstats.exe
Icload95
Icload95.exe
Icloadnt
Icloadnt.exe
Icmon
Icmon.exe
Icsupp95
Icsupp95
Icsupp95.exe
Icsupp95.exe
Icsuppnt
Icsuppnt.exe
Iface
Iface.exe
Iomon98
Iomon98.exe
Isrv95
Isrv95.exe
Jedi
Jedi.exe
Ldnetmon
Ldnetmon.exe
Ldpromenu
Ldpromenu.exe
Ldscan
Ldscan.exe
Lockdown
Lockdown.exe
Lockdown2000
Lockdown2000
Lockdown2000.exe
Lockdown2000.exe
Luall
Luall.exe
Lucomserver
Lucomserver.exe
Luspt
Luspt.exe
Mcagent
Mcagent.exe
Mcmnhdlr
Mcmnhdlr.exe
Mcshield.exe
Mctool
Mctool.exe
Mcupdate
Mcupdate.exe
Mcvsrte
Mcvsrte.exe
Mcvsshld
Mcvsshld.exe
Mgavrtcl
Mgavrtcl.exe
Mgavrte
Mgavrte.exe
Mghtml
Mghtml.exe
Minilog
Minilog.exe
Monitor
Monitor
Monitor.exe
Monitor.exe
Moolive
Moolive.exe
Mpfagent.exe
Mpfservice
Mpfservice.exe
Mpftray.exe
Mwatch
Mwatch.exe
Mwatch.exe
Nav auto-protect
Nav32_loader
Navap
Navapsvc
Navapsvc.exe
Navapsvc.exe
Navapw32
Navapw32
Navapw32.exe
Navengnavex15
Navlu32
Navlu32.exe
Navw32
Navw32
Navw32.exe
Navwnt
Navwnt.exe
Ndd32
Ndd32.exe
Neowatchlog
Neowatchlog.exe
Netutils
Netutils.exe
Nisserv
Nisserv.exe
Nisum
Nisum.exe
Nmain
Nmain.exe
Normist
Normist.exe
Notstart
Notstart.exe
Nprotect
Nprotect.exe
Npscheck
Npscheck.exe
Npssvc
Npssvc.exe
Nsched32
Nsched32.exe
Ntrtscan
Ntrtscan.exe
Ntvdm
Ntvdm.exe
Ntxconfig
Ntxconfig.exe
Nui.exe
Nupgrade
Nupgrade.exe
Nvc95
Nvc95.exe
Nvsvc32
Nwservice
Nwservice.exe
Nwtool16
Nwtool16.exe
Padmin
Padmin.exe
Pavproxy
Pavproxy
Pavproxy.exe
Pavproxy.exe
Pcciomon
Pcciomon.exe
Pccntmon
Pccntmon.exe
Pccwin97
Pccwin97.exe
Pccwin98
Pccwin98.exe
Pcscan
Pcscan.exe
Persfw
Persfw.exe
Perswf
Perswf.exe
Pop3trap
Pop3trap.exe
Poproxy
Poproxy.exe
Portmonitor
Portmonitor.exe
Processmonitor
Processmonitor.exe
Programauditor
Programauditor.exe
Pview95
Pview95.exe
Rapapp.exe
Rav7
Rav7.exe
Rav7win
Rav7win.exe
Realmon
Realmon.exe
Rescue
Rescue
Rescue.exe
Rescue.exe
Rtvscn95
Rtvscn95.exe
Rulaunch
Rulaunch.exe
Sbserv
Sbserv.exe
Scan32
Scan32.exe
Scrscan
Scrscan.exe
Smc
Smc.exe
Sphinx
Sphinx
Sphinx.exe
Sphinx.exe
Spyxx
Spyxx.exe
Ss3edit
Ss3edit.exe
Sweep95
Sweep95.exe
Sweepnet
Sweepsrv.sys
Swnetsup
Swnetsup.exe
Symproxysvc
Symproxysvc.exe
Symtray
Symtray.exe
Syshelp.exe
Taumon
Taumon.exe
Tc.exe
Tca
Tca.exe
Tcm
Tcm.exe
Tcpsvs32
Tds-3
Tds-3.exe
Tfak
Tfak.exe
Vbcmserv
Vbcmserv.exe
Vbcons
Vbcons.exe
Vet32
Vet32.exe
Vet32.exe
Vet95
Vet95
Vet95.exe
Vet95.exe
Vettray
Vettray
Vettray.exe
Vettray.exe
Vir-help
Vir-help.exe
Vpc32
Vpc32.exe
Vptray
Vptray.exe
Vsched
Vsched.exe
Vsecomr
Vsecomr.exe
Vshwin32
Vshwin32
Vshwin32.exe
Vsmain
Vsmain.exe
Vsmon
Vsmon.exe
Vsmon.exe
Vsstat
Vsstat.exe
Watchdog
Watchdog.exe
Webscanx
Webscanx.exe
Webtrap
Webtrap.exe
Wgfe95
Wgfe95.exe
Wimmun32
Wimmun32.exe
Wingate.exe
Winmgm32.exe
Winservices
Wradmin
Wradmin
Wradmin.exe
Wradmin.exe
Wrctrl
Wrctrl
Wrctrl.exe
Wrctrl.exe
Zapro
Zapro.exe
Zonealarm
Zonealarm.exe

Then, it tries to delete the following files:
C:\%SystemDIR%\WinServices.exe.
C:\%SystemDIR%\Nav32_loader.exe
C:\%SystemDIR%\Tcpsvs32.exe
C:\%SystemDIR%\Syshelp32.exe
C:\%SystemDIR%\Wingate.exe
C:\%SystemDIR%\Winrpcsrv.exe
C:\%SystemDIR%\Winmgm32.exe
C:\%WinDIR%\SNTMLS.dat
Description inserted by Crony Walker on Tuesday, June 15, 2004

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