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UWAGA! I-Worm.Bagz.g

Jest to robak rozprzestrzeniający się przez Internet jako załącznik zainfekowanych wiadomości e-mail. Ma postać pliku PE EXE 167 KB (kompresja UPX, rozmiar po rozpakowaniu - około 200 KB).

Instalacja

Po uruchomieniu robak tworzy w folderze \Windows\System następujące pliki:

C:\WINDOWS\SYSTEM32\sysinfo32.exe
C:\WINDOWS\SYSTEM32\trace32.exe

Dodatkowo szkodnik tworzy własną kopię o nazwie:

C:\WINDOWS\SYSTEM32\sqlssl.doc.exe

Robak tworzy w rejestrze systemowym następujący klucz:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Xuy v palto]

Rozprzestrzenianie - poczta elektroniczna

Adresy potencjalnych ofiar pobierane są z plików posiadających następujące rozszerzenia:

TBB
TBI
DBX
HTM
TXT

W celu wysyłania zainfekowanych wiadomości e-mail robak wykorzystuje bezpośrednie połączenie z serwerem SMTP odbiorcy.

Szkodnik nie wysyła wiadomości pod adresy zawierające następujące teksty:

@avp
@foo
@iana
@messagelab
@microsoft
abuse
admin
administrator@
all@
anyone@
bsd
bugs@
cafee
certific
certs@
contact@
contract@
feste
free-av
f-secur
gold-
gold-certs@
google
help@
hostmaster@
icrosoft
info@
kasp
linux
listserv
local
netadmin@
news
nobody@
noone@
noreply
ntivi
oocies
panda
pgp
postmaster@
rating@
root@
samples
sopho
spam
support
support@
unix
update
webmaster@
winrar
winzip

Charakterystyka zainfekowanych wiadomości e-mail

  • Temat (wybierany z poniższych możliwości): ASAP Administrator Allert! Amirecans Att attach attachments best regards contract Have a nice day Hello Money office please responce re: Andrey re: order re: please Read this Russian's text toxic urgent Vasia waiting Warning
  • Treść (wybierana z poniższych możliwości):
    Did you get the previous document I attached for you?
    I resent it in this email just in case, because I
    really need you to check it out asap.
    Best Regards
    
    Hi
    I made a mistake and forgot to click attach
    on the previous email I sent you. Please give me
    your opinion on this opportunity when you get a chance.
    Best Regards
    
    Hi
    I was supposed to send you this document yesterday.
    Sorry for the delay, please forward this to your family if possible.
    It contains important info for both of you.
    
    Hi
    Sorry, I forgot to send an important
    document to you in that last email. I had an important phone call.
    Please checkout attached doc file when you have a moment.
    Best Regards
    
    Hi
    I was in a rush and I forgot to attach an important
    document. Please see attached doc file.
    Best Regards,
    
    Sorry to bother you, but I am having a problem receiving your emails.
    I am responding to your last email in the attached file.
    Please get back to me if there is any problem reading the attachment.
    
    I am responding to your last email in the attached file.
    I had a delivery problem with your inbox, so maybe you'll receive this now.
    
    Can you please check out the email I have attached?
    For some reason, I received only part of your last several emails.
    I want to make sure that there are no problems with either of our accounts.
    
    This email is being sent as attachment because
    it was previously blocked by your email filters.
    Please view the attachment and respond.
    Thanks
    
    I resent this email as attachment because
    it was previously blocked by your email filters.
    Please read the attachment and respond.
    Thanks
    
    I apologize, but I need you to verify
    that I have the correct contact info for you.
    My system crashed last weekend and
    I lost most of my friends and work contacts.
    Please check the attached (.pdf) and
    please let me know if your info is current.
    
    My last email to you was returned.
    The reason is that I am not currently
    added to your allowed contact list.
    Please add my updated contact info
    provided in the attached (.pdf) file
    so I can send you emails in the future.
    Sincerely
    
    I have updated my email address
    See the (.pdf) file attached and
    please respond if you have any questions.
    
    We have made recent updates to our database.
    Please verify your mailing address on file is correct.
    We have attached a (.pdf) sheet for you to use for your response.
    
    Hello
    Our contact information has changed.
    See the attached (.pdf) sheet for details.
    Sincerely,
    
    ***URGENT: SERVICE SHUTDOWN NOTICE***
    Due to your failure to comply with our email
    Rules and Regulations, your email account has been
    temporarily suspended for 24 hours unless we are contacted regarding
    this situation.
    You must read the attached document for further
    instructions. Failure to comply will result in termination of your account.
    Regards,
    Net Operator
    ***URGENT: SERVICE SHUTDOWN NOTICE***
    
    ***ATTENTION: YOUR EMAIL IS NOT BEING DELIVERED!***
    You are currently unable to send emails.
    This may be a billing issue.
    Please call the billing center.
    The # for the billing office is located in the attached
    contact list for your convenience.
    ***ATTENTION: YOUR EMAIL IS NOT BEING DELIVERED!***
    
    ***YOUR MESSAGE HAS BEEN RECOGNIZED AS SPAM***
    Hello,
    The previous email you sent has been recognized as spam.
    This means your email was not delivered to your friend or client.
    You must open the attached file to receive more information.
    ***YOUR MESSAGE HAS BEEN RECOGNIZED AS SPAM***
    
    Hello,
    What version of windows you are using?
    This last document I received from you came out weird.
    Please see the attached word file and resend the file to me.
    Many thanks,
    User
    
    Hello,
    My PC crashed while I was sending that last email.
    I have re-attached the document of yours that I discovered.
    Please read attached document and respond ASAP.
    Sincerely,
    User
    
    Hello,
    Your email was sent in an INVALID format.
    To verify this email was sent from you,
    simply open the attached email (.eml) file
    and click yes in the sender options box.
    Thank You,
    User
    
    Hello,
    Your email was received.
    YOUR REPLY IS URGENT!
    Please view the attached text file for instructions.
    Regards,
    User
    
    Hello,
    I was in a hurry and I forgot to attach an important
    document. Please see attached.
    Best Regards,
    User
    
    Hello,
    I resent this email as attachment because
    it was previously blocked by your email filters.
    Please read the attachment and respond.
    Thanks,User
    
    Hello,
    Sorry, I forgot to attach the new contact information.
    Please view the attached (.pdf) contact sheet.
    Sincerely, User
    
  • Nazwa załącznika (wybierana z poniższych możliwości):
    about.zip
    admin.zip
    archivator.zip
    archives.zip
    ataches.zip
    backup.zip
    docs.zip
    documentation.zip
    help.zip
    inbox.zip
    manual.zip
    outbox.zip
    payment.zip
    photos.zip
    rar.zip
    readme.zip
    save.zip
    zip.zip
    about.doc.exe
    admin.doc.exe
    archivator.doc.exe
    archives.doc.exe
    ataches.doc.exe
    backup.doc.exe
    docs.doc.exe
    documentation.doc.exe
    help.doc.exe
    inbox.doc.exe
    manual.doc.exe
    outbox.doc.exe
    payment.doc.exe
    photos.doc.exe
    rar.doc.exe
    readme.doc.exe
    save.doc.exe
    sqlssl.doc.exe
    zip.doc.exe
    

Funkcje dodatkowe

Robak nadpisuje plik \Windows\System\DRIVERS\ETC\HOSTS następującą zawartością:

127.0.0.1 ad.doubleclick.net 
127.0.0.1 ad.fastclick.net 
127.0.0.1 ads.fastclick.net 
127.0.0.1 ar.atwola.com 
127.0.0.1 atdmt.com 
127.0.0.1 avp.ch 
127.0.0.1 avp.com 
127.0.0.1 avp.ru 
127.0.0.1 awaps.net 
127.0.0.1 banner.fastclick.net 
127.0.0.1 banners.fastclick.net 
127.0.0.1 ca.com 
127.0.0.1 click.atdmt.com 
127.0.0.1 clicks.atdmt.com 
127.0.0.1 dispatch.mcafee.com 
127.0.0.1 download.mcafee.com 
127.0.0.1 download.microsoft.com 
127.0.0.1 downloads.microsoft.com 
127.0.0.1 engine.awaps.net 
127.0.0.1 fastclick.net 
127.0.0.1 f-secure.com 
127.0.0.1 ftp.f-secure.com 
127.0.0.1 ftp.sophos.com 
127.0.0.1 go.microsoft.com 
127.0.0.1 liveupdate.symantec.com 
127.0.0.1 mast.mcafee.com 
127.0.0.1 mcafee.com 
127.0.0.1 media.fastclick.net 
127.0.0.1 msdn.microsoft.com 
127.0.0.1 my-etrust.com 
127.0.0.1 nai.com 
127.0.0.1 networkassociates.com 
127.0.0.1 office.microsoft.com 
127.0.0.1 phx.corporate-ir.net 
127.0.0.1 secure.nai.com 
127.0.0.1 securityresponse.symantec.com 
127.0.0.1 service1.symantec.com 
127.0.0.1 sophos.com 
127.0.0.1 spd.atdmt.com 
127.0.0.1 support.microsoft.com 
127.0.0.1 symantec.com 
127.0.0.1 update.symantec.com 
127.0.0.1 updates.symantec.com 
127.0.0.1 us.mcafee.com 
127.0.0.1 vil.nai.com 
127.0.0.1 viruslist.ru 
127.0.0.1 windowsupdate.microsoft.com 
127.0.0.1 www.avp.ch 
127.0.0.1 www.avp.com 
127.0.0.1 www.avp.ru 
127.0.0.1 www.awaps.net 
127.0.0.1 www.ca.com 
127.0.0.1 www.fastclick.net 
127.0.0.1 www.f-secure.com 
127.0.0.1 www.kaspersky.ru 
127.0.0.1 www.mcafee.com 
127.0.0.1 www.my-etrust.com 
127.0.0.1 www.nai.com 
127.0.0.1 www.networkassociates.com 
127.0.0.1 www.sophos.com 
127.0.0.1 www.symantec.com 
127.0.0.1 www.trendmicro.com 
127.0.0.1 www.viruslist.ru 
127.0.0.1 www3.ca.com
127.0.0.1 localhost

W rezultacie użytkownik nie ma możliwości odwiedzania wymienionych witryn.

Robak usuwa wpisy rejestry systemowego zawierające następujące teksty:

804mbd1.chk
804mbd1.img
aboutplg.dll
alert.zap
appinit.ini
apwcmdnt.dll
apwutil.dll
ashavast.exe
ashbug.exe
ashchest.exe
ashdisp.exe
ashldres.dll
ashlogv.exe
ashmaisv.exe
ashpopwz.exe
ashquick.exe
ashserv.exe
ashsimpl.exe
ashskpcc.exe
ashskpck.exe
aswboot.exe
aswregsvr.exe
aswupdsv.exe
avcompbr.dll
avres.dll
bootwarn.exe
camupd.dll
ccavmail.dll
ccimscan.dll
ccimscn.exe
cerbprovider.pvx
cfgwiz.exe
cfgwzres.dll
defalert.dll
djsalert.dll
dunzip32.dll
edisk.dll
email.zap
emscnres.dll
filter.zap
firewall.zap
framewrk.dll
ftscnres.dll
idlock.zap
imscnbin.inf
imscnres.inf
ltchkres.dll
mcappins.exe
mcavtsub.dll
mcinfo.exe
mcmnhdlr.exe
mcscan32.dll
mcshield.dll
mcshield.exe
mcurial.dll
mcvsctl.dll
mcvsescn.exe
mcvsftsn.exe
mcvsmap.exe
mcvsrte.exe
mcvsscrp.dll
mcvsshl.dll
mcvsshld.exe
mcvsskt.dll
mcvsworm.dll
mghtml.exe
mpfagent.exe
mpfconsole.exe
mpfservice.exe
mpftray.exe
mpfupdchk.dll
mpfwizard.exe
mvtx.exe
n32call.dll
n32exclu.dll
naiann.dll
naievent.dll
navap32.dll
navapscr.dll
navapsvc.exe
navapw32.dll
navapw32.exe
navcfgwz.dll
navcomui.dll
naverror.dll
navevent.dll
navlcom.dll
navlnch.dll
navlogv.dll
navlucbk.dll
navntutl.dll
navoptrf.dll
navopts.dll
navprod.dll
navshext.dll
navstats.dll
navstub.exe
navtasks.dll
navtskwz.dll
navui.dll
navui.nsi
navuihtm.dll
navw32.exe
navwnt.exe
netbrext.dll
ntclient.dll
oeheur.dll
officeav.dll
opscan.exe
outscan.dll
outscres.dll
patch25d.dll
patchw32.dll
persfw.exe
pfui.dll
pfwadmin.exe
probegse.dll
programs.zap
ptchinst.dll
qconres.dll
qconsole.exe
qspak32.dll
quar32.dll
quarantine
quaropts.dat
s32integ.dll
s32navo.dll
savrt.sys
savrt32.dll
savrtpel.sys
savscan.exe
scan.dat
scandlvr.dll
scandres.dll
scanmgr.dll
scanserv.dll
sched.exe
scriptui.dll
scrpres.dll
scrpsbin.inf
scrstres.inf
sdpck32i.dll
sdsnd32i.dll
sdsok32i.dll
sdstp32i.dll
security.zap
shextbin.inf
shextres.inf
shlres.dll
ssleay32.dll
statushp.dll
symnavo.dll
tutorwiz.dll
vsagntui.dll
vsavpro.dll
vsdb.dll
vsmon.exe
vsoui.dll
vsoupd.dll
vsowow.dll
vsruledb.dll
vsvault.dll
wormres.dll
zatutor.exe
zauninst.exe
zav.zap
zl_priv.htm
zlclient.exe
zlparser.dll
zonealarm.exe

W rezultacie robak blokuje funkcjonowanie wielu zapór ogniowych oraz programów antywirusowych.

Inne znane nazwy szkodnika

W32/Bagz.g@MM (McAfee),   W32.Bagz.H@mm (Symantec),   Win32.HLLM.Bagz (Doctor Web),   W32/Bagz-F (Sophos),   Win32/Bagz.F@mm (RAV),   WORM_BAGZ.F (Trend Micro),   Worm/Bagz.G.5 (H+BEDV),   W32/Bagz.H@mm (FRISK),   Win32:Bagz-F (ALWIL),   I-Worm/Bagz.G (Grisoft),   Win32.Bagz.G@mm (SOFTWIN)



 2004-11-15  

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