TSPY_ZBOT.US
VirTool:Win32/DelfInject.gen!AC (Microsoft); Trojan-Spy.Win32.Zbot.dwu (Kaspersky)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Spyware
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This spyware also has rootkit capabilities, which enables it to hide its processes and files from the user.
TECHNICAL DETAILS
397,312 bytes
Yes
07 Apr 2009
Steals information
Infection Points
This spyware arrives as a file downloaded from the following URLs:
- http://www.{BLOCKED}ad.info/ldrzif2.exe
Installation
This spyware then creates the following non-malicious file(s):
- %System%\wsnpoem\audio.dll - used to save the gathered information
- %System%\wsnpoem\video.dll - copy of the encrypted downloaded file
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It injects itself into the following processes running in the affected system's memory:
- winlogon.exe
- svchost.exe
It creates the following folders with attributes set to System and Hidden to prevent users from discovering and removing its components:
- %System%\wsnpoem
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- __SYSTEM__91C38905__
Autostart Technique
This spyware modifies the following registry entry(ies) to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\ CurrentVersion\Winlogon
Userinit = %System%\Userinit.exe,%System%\ntos.exe,
(Note: The default value data of the said registry entry is "%System%\Userinit.exe,".)
Other System Modifications
This spyware also creates the following registry entry(ies) as part of its installation routine:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Network
UID = {computer name}_{random numbers}
Rootkit Capabilities
This spyware also has rootkit capabilities, which enables it to hide its processes and files from the user.
Information Theft
This spyware accesses the following site to download its configuration file:
- http://www.{BLOCKED}ad.info/cfgzif2.bin
Its configuration file contains the following information:
- URL to download an updated copy of itself
- URL to send stolen data
- list of targeted bank-related Web sites to monitor from which it steals information
Stolen Information
This spyware sends the gathered information via HTTP POST to the following URL:
- http://www.{BLOCKED}ad.info/z2/s.php
NOTES:
It checks for the presence of the following processes which, are related to Outpost Personal Firewall and ZoneLabs Firewall Client:
- outpost.exe
- zlclient.exe
It terminates if either of the said processes exist. This is to ensure that the spyware will run uninterrupted.
This configuration file also contains the following list of targeted bank-related Web sites to monitor from which it steals information:
- http://*myspace.com*
- *.ebay.com/*eBayISAPI.dll?*
- *//mail.yandex.ru/
- *//mail.yandex.ru/index.xml
- *//money.yandex.ru/
- *//money.yandex.ru/index.xml
- */my.ebay.com/*CurrentPage=MyeBayPersonalInfo*
- *banquepopulaire.fr/*
- *wellsfargo.com/*
- @*.bv-i.bancodevalencia.es/*
- @*banesnet.banesto.es
- @*caja-granada.es/cgi-bin/*
- @https://*.e-gold.com/*
- @https://*factor2*
- @https://*ingdirect.com.au/client/Login.aspx*
- @https://*westpac.com.au/esis/Login/SrvPage*
- @https://carnet.cajarioja.es/banca3/*
- @https://cuviewpoint.net/mvptartan/login.asp*
- @https://factor2b.inetbank.net.au/factor2da3/factor2login.jsp
- @https://intelvia.cajamurcia.es/cgi-bin/INclient_2043
- @https://lo2.lacaixa.es/*
- @https://mvp1.sccu.com.au/*/Login.asp
- @https://net.kutxa.net/jkn_opkn/*
- @https://netaccess2.qtcu.com.au/*/ntv45.asp?wci=entry
- @https://netbank.selectcu.com.au/*/login.asp*
- @https://netteller.resourcescu.com.au/*/ntv45.asp?WCI=entry
- @https://netteller.tsw.com.au/*/ntv45.asp?wci=entry
- @https://oi.cajamadrid.es/CajaMadrid/oi/pt_oi/Login/login
- @https://oie.cajamadridempresas.es/CajaMadrid/oie/pt_oie/Login/login_oie_1
- @https://www.ardil.bancogallego.es/servlet/*
- @https://www.caixanova.es/cgi-bin/INclient_*
- @https://www.caixatarragona.es/esp/sec_1/*
- @https://www.cajabadajoz.es/cgi-bin/INclient_6010
- @https://www.cajacanarias.es/cgi-bin/INclient_6065*
- @https://www.cajadeavila.es*
- @https://www.cajasur.es/cgi-bin/INclient_4024
- @https://www.cajavital.es/Appserver/*
- @https://www.ccm.es/cgi-bin/INclient_6105
- @https://www.clavenet.net/cgi-bin/*
- @https://www1.ibercajadirecto.com/ibercaja/asp/Login.asp
- @https://www2.bancopopular.es/Bpemotor
- @https://wwws.sanostra.es/cgi-bin/INclient_2051*
- http://*.osmp.ru/
- http://caixasabadell.net/banca2/tx0011/0011.jsp
- https://*bancaja.es/*
- https://*cajamar.es/BE/extern/htm/login.html*
- https://*citibank.ru/*Signon*
- https://*citibank.ru/RUGCB/JPS/portal/BusLocSwitch.*
- https://*ebgempresa.es/*
- https://*gruposantander.es/*
- https://*rbkmoney.ru/client/index.aspx*
- https://*westpac.com.au/wtwt/startpage*
- https://areasegura.banif.es/bog/bogbsn*
- https://banca.cajaen.es/Jaen/INclient.jsp
- https://bancaonline.openbank.es/servlet/PProxy?*
- https://banesnet.banesto.es/*/loginEmpresas.htm
- https://banking*.anz.com/*
- https://banking.*.de/cgi/ueberweisung.cgi/*
- https://brokerage.comdirect.de/servlet/*TAN*
- https://cardsonline-consumer.com/RBSG_Consumer/VerifyLogin.do
- https://carnet.cajarioja.es/banca3/tx0011/0011.jsp
- https://cipehb*.cdg.citibank.de/HomeBanking*?_D=WorkArea&*
- https://easyweb*.tdcanadatrust.com/servlet/*FinancialSummaryServlet*
- https://empresas.gruposantander.es/WebEmpresas/servlet/webempresas.servlets.*
- https://extranet.banesto.es/*/loginParticulares.htm
- https://extranet.banesto.es/npage/OtrosLogin/LoginIBanesto.htm
- https://finanzportal.fiducia.de/*?rzid=*&rzbk=*
- https://finanzportal.fiducia.de/ebanking*Action=*
- https://finanzportal.fiducia.de/ebbg2/portal?token=*
- https://hb.quiubi.it/newSSO/x11logon.htm
- https://home.cbonline.co.uk/login.html*
- https://home.ybonline.co.uk/login.html*
- https://home.ybonline.co.uk/ral/loginmgr/*
- https://home2ae.cd.citibank.ae/CappWebAppAE/producttwo/capp/action/signoncq.do
- https://ibank.barclays.co.uk/olb/x/LoginMember.do
- https://ibank.internationalbanking.barclays.com/logon/icebapplication*
- https://ibanking.banksa.com.au/InternetBanking/viewAccountPortfolio.do*
- https://ibanking.stgeorge.com.au/InternetBanking/viewAccountPortfolio.do*
- https://intelvia.cajamurcia.es/2043/entrada/01entradaencrip.htm
- https://internetbanking.aib.ie/hb1/roi/signon
- https://internetbanking.gad.de/*/portal?bankid=*
- https://internetbanking.gad.de/banking/*
- https://light.webmoney.ru/default.aspx
- https://lot-port.bcs.ru/names.nsf?#ogin*
- https://montevia.elmonte.es/cgi-bin/INclient_2098*
- https://net.kutxa.net/jkn_opkn/tmpl/es/loginkn.jsp*
- https://oi.cajamadrid.es/CajaMadrid/oi/pt_oi/Login/login
- https://oie.cajamadridempresas.es/CajaMadrid/oie/pt_oie/Login/login_oie_1
- https://olb2.nationet.com/MyAccounts/frame_MyAccounts_WP2.asp*
- https://olb2.nationet.com/signon/signon*
- https://online*.lloydstsb.co.uk/logon.ibc
- https://online-business.lloydstsb.co.uk/customer.ibc
- https://online-offshore.lloydstsb.com/customer.ibc
- https://online.wamu.com/Servicing/Servicing.aspx?targetPage=AccountSummary
- https://online.wellsfargo.com/das/cgi-bin/session.cgi*
- https://online.wellsfargo.com/login*
- https://online.wellsfargo.com/signon*
- https://onlinebanking#.wachovia.com/myAccounts.aspx?referrer=authService
- https://onlinebanking.nationalcity.com/OLB/secure/AccountList.aspx
- https://onlinebanking.norisbank.de/norisbank/*.do?method=*
- https://onlinebanking.norisbank.de/norisbank/login.do?method=login*
- https://onlineeast#.bankofamerica.com/cgi-bin/ias/*/GotoWelcome
- https://pastornetparticulares.bancopastor.es/SrPd*
- https://privati.internetbanking.bancaintesa.it/sm/login/IN/box_login.jsp
- https://probanking.procreditbank.bg/main/main.asp*
- https://resources.chase.com/MyAccounts.aspx
- https://rupay.com/index.php
- https://scrigno.popso.it*
- https://web.da-us.citibank.com/*BS_Id=MemberHomepage*
- https://web.da-us.citibank.com/cgi-bin/citifi/portal/l/autherror.do*
- https://web.da-us.citibank.com/cgi-bin/citifi/portal/l/l.do
- https://web.secservizi.it/siteminderagent/forms/login.fcc
- https://welcome23.smile.co.uk/SmileWeb/start.do
- https://welcome27.co-operativebank.co.uk/CBIBSWeb/start.do
- https://www#.citizensbankonline.com/*/index-wait.jsp
- https://www#.usbank.com/internetBanking/LoginRouter
- https://www*.banking.first-direct.com/1/2/*
- https://www.53.com/servlet/efsonline/index.html*
- https://www.bancajaproximaempresas.com/ControlEmpresas*
- https://www.bancoherrero.com/es/*
- https://www.bbvanetoffice.com/local_bdno/login_bbvanetoffice.html
- https://www.bgnetplus.com/niloinet/login.jsp
- https://www.caixagirona.es/cgi-bin/INclient_2030*
- https://www.caixalaietana.es/cgi-bin/INclient_2042
- https://www.caixaontinyent.es/cgi-bin/INclient_2045
- https://www.caixatarragona.es/esp/sec_1/oficinacodigo.jsp
- https://www.caja-granada.es/cgi-bin/INclient_2031
- https://www.cajabadajoz.es/cgi-bin/INclient_6010*
- https://www.cajacanarias.es/cgi-bin/INclient_6065
- https://www.cajacirculo.es/ISMC/Circulo/acceso.jsp
- https://www.cajadeavila.es/cgi-bin/INclient_6094
- https://www.cajalaboral.com/home/acceso.asp
- https://www.cajasoldirecto.es/2106/*
- https://www.cajavital.es/Appserver/vitalnet*
- https://www.ccm.es/cgi-bin/INclient_6105
- https://www.citibank.de*
- https://www.clavenet.net/cgi-bin/INclient_7054
- https://www.dab-bank.com*
- https://www.dresdner-privat.de/servlet/*
- https://www.e-gold.com/acct/balance.asp*
- https://www.e-gold.com/acct/li.asp
- https://www.ebank.hsbc.co.uk/main/IBLogon.jsp
- https://www.fibancmediolanum.es/BasePage.aspx*
- https://www.gbw2.it/cbl/jspPages/form_login_AV.jsp*
- https://www.gruposantander.es/bog/sbi*?ptns=acceso*
- https://www.gruppocarige.it/grps/vbank/jsp/login.jsp
- https://www.halifax-online.co.uk/_mem_bin/*
- https://www.halifax-online.co.uk/_mem_bin/formslogin.asp*
- https://www.halifax-online.co.uk/MyAccounts/MyAccounts.aspx*
- https://www.hsbc.co.uk/1/2/*
- https://www.in-biz.it*
- https://www.isbank.com.tr/Internet/ControlLoader.aspx*
- https://www.iwbank.it/private/index_pub.jhtml*
- https://www.mybank.alliance-leicester.co.uk/login/*
- https://www.nwolb.com/Login.asp*
- https://www.nwolb.com/Login.aspx*
- https://www.paypal.com/*/webscr?cmd=_account
- https://www.paypal.com/*/webscr?cmd=_login-done*
- https://www.rbsdigital.com/Login.asp*
- https://www.sabadellatlantico.com/es/*
- https://www.suntrust.com/portal/server.pt*parentname=Login*
- https://www.unicaja.es/PortalServlet*
- https://www.uno-e.com/local_bdnt_unoe/Login_unoe2.html
- https://www.us.hsbc.com/*
- https://www.vr-networld-ebanking.de/ebanking*Action=*
- https://www.vr-networld-ebanking.de/index.php?RZKZ=*&RZBK=*
- https://www.wellsfargo.com/*
- https://www2.bancopopular.es/AppBPE/servlet/servin*
- https://www3.netbank.commbank.com.au/netbank/bankmain*
Note that the contents of the file, hence the list of Web sites to monitor, may change any time. Once users access any of the monitored sites, this spyware starts logging keystrokes.
This Spyware attempts to retrieve information from the following list of banking institutions:
- AIB
- Alliance & Leicester
- ANZ
- Banca Intesa
- Bancaja
- Banco Herrero
- Banco Pastor
- Banco Popular
- Banesto
- Banif
- Bank of America
- Banque Populaire
- Barclays
- BBVA
- BG Net Plus
- BrokerCreditService
- Caixa Girona
- Caixa Laietana
- Caixa Ontinyent
- Caixa Sabadell
- Caixa Tarragona
- Caja Badajoz
- Caja Canarias
- Caja Circulo
- Caja de Avila
- Caja de Jaen
- Caja Granada
- Caja Laboral
- Caja Madrid
- Caja Murcia
- Caja Vital
- Cajarioja
- Cajasol
- CCM
- Chase
- Citibank
- Citizens
- Clavenet
- Clydesdale
- Co-Operativebank
- Comdirect
- DAB
- Dresdner
- E-Gold
- Ebay
- Fibanc Mediolanum
- Fiducia
- Fifth Third
- First Direct
- GAD
- Gruppo Carige
- Halifax
- HSBC
- IS Bank
- IW Bank
- Kutxanet
- Lloyds
- National City
- Nationwide
- Natwest
- Openbank
- OSPM
- PayPal
- Procredit
- Qui UBI
- Raiffeisen
- RBS
- Rupay
- Sabadell Atlantico
- Santander
- Scrigno
- Secservizi
- Smile
- Suntrust
- TD Canada Trust
- Unicaja
- Uno-E
- US Bank
- Volksbanken Raiffeisenbanken
- Wachovia
- Washington Mutual
- Webmoney Keeper Light
- Wells Fargo
- Yandex
- Yorkshire
Note that the list may change anytime.
SOLUTION
9.300
5.883.00
07 Apr 2009
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Scan your computer with your Trend Micro product and note files detected as TSPY_ZBOT.US
Step 3
Identify and delete files detected as TSPY_ZBOT.US using the Recovery Console
Step 4
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Network
- UID = {computer name}_{random numbers}
- UID = {computer name}_{random numbers}
Step 5
Restore these modified registry values
Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\ CurrentVersion\Winlogon
- From: Userinit = %System%\Userinit.exe,%System%\ntos.exe,
To: Userinit = %System%\Userinit.exe,
- From: Userinit = %System%\Userinit.exe,%System%\ntos.exe,
Step 6
Search and delete this folder
- %System%\wsnpoem
Step 7
Scan your computer with your Trend Micro product to delete files detected as TSPY_ZBOT.US. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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