TSPY_ZBOT.WITU

 Analysis by: kathleenno

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW


This spyware may be unknowingly downloaded by a user while visiting malicious websites.

When executed, it adds folders. It injects itself into certain processes as part of its memory residency routine.

It drops files. It connects to URL(s) to download its configuration file.

It attempts to access a Web site to download a file which contains information where the Trojan can download an updated copy of itself, and where to send its stolen data. This configuration file also contains the list of targeted bank-related Web sites from which it steals information.

It sends the gathered information via HTTP POST to a specific URL.

This spyware attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites.

  TECHNICAL DETAILS

File Size:

250,368 bytes

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

22 Mar 2011

Payload:

Downloads files

Arrival Details

This spyware may be unknowingly downloaded by a user while visiting the following malicious websites:

  • http://{BLOCKED}.{BLOCKED}.44.42/~heheheyo/forum/exe.exe

Installation

This spyware adds the following folders:

  • %Application Data%\{random1}
  • %Application Data%\{random2}

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Windows\Profiles\{user name}\Application Data on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Application Data on Windows NT, and C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003.)

It injects itself into the following processes as part of its memory residency routine:

  • dwm.exe
  • rdpclip.exe
  • ctfmon.exe
  • wscntfy.exe
  • taskeng.exe
  • taskhost.exe

Autostart Technique

This spyware adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random CLSID} = %Application Data%\{random1}\{random}.exe

Other System Modifications

This spyware adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
{random}

Dropping Routine

This spyware drops the following files:

  • %Application Data%\{random1}\{random}.exe
  • %Application Data%\{random2}\{random}.{random}

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Windows\Profiles\{user name}\Application Data on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Application Data on Windows NT, and C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003.)

Download Routine

This spyware connects to the following URL(s) to download its configuration file:

  • http://{BLOCKED}.{BLOCKED}.44.42/~heheheyo/forum/forum.bin

Information Theft

This spyware attempts to access a website to download a file which contains information where the Trojan can download an updated copy of itself, and where to send its stolen data. This configuration file also contains the following list of targeted bank-related websites from which it steals information:

  • *.ebay.com/*eBayISAPI.dll?*
  • *//mail.yandex.ru/
  • *//mail.yandex.ru/index.xml
  • *//money.yandex.ru/
  • *//money.yandex.ru/index.xml
  • */atl.osmp.ru/*
  • */login.osmp.ru/*
  • */my.ebay.com/*CurrentPage=MyeBayPersonalInfo*
  • */www.paypal.com/*_account*
  • *bankofamerica.com/*/GotoWelcome*
  • *bankofamerica.com/*/SplashPageControl*
  • *banquepopulaire.fr/*
  • *scotiaonline.scotiabank.com/online/start.jsp*
  • *tchek.com*
  • *wellsfargo.com/*
  • http://*.osmp.ru/
  • http://beats4bid.com/marketplace/admin/ssl/ssl/scotia.php
  • http://caixasabadell.net/banca2/tx0011/0011.jsp
  • http://feedback.ebay.com/ws/eBayISAPI.dll?ViewFeedback&*
  • http://www.caixatarragona.es/esp/sec_20/codigos.html
  • http://www.hsbc.co.uk/1/2/personal/internet-banking*
  • http://www.scotiabank.com/
  • https://accesd.desjardins.com/auportADPortail/ObtenirPageAccueil.do*
  • https://accesd.desjardins.com/tisecuADGestionAcces/ModifierQuestRepAuthForte.do*
  • https://apps.tchek.com/tchekmain/default.asp
  • https://areasegura.banif.es/bog/bogbsn*
  • https://banca.cajaen.es/Jaen/INclient.jsp
  • https://bancaonline.openbank.es/servlet/PProxy?*
  • https://bancopostaonline.poste.it/bpol/bancoposta/formslogin.asp
  • https://banesnet.banesto.es/*/loginEmpresas.htm
  • https://banking*.anz.com/*
  • https://banking.hypo.at/html/startseite.wf*
  • https://banking.raiffeisen.at/html/startseite.wf*
  • https://cardsonline-consumer.com/RBSG_Consumer/VerifyLogin.do
  • https://carnet.cajarioja.es/banca3/tx0011/0011.jsp
  • https://chaseonline.chase.com/MyA*
  • https://easyweb*.tdcanadatrust.com/servlet/*FinancialSummaryServlet*
  • https://ebanking.bawag.com/InternetBanking/InternetBanking/*d=*
  • https://ebanking.easybank.at/InternetBanking/InternetBanking/*d=*
  • https://empresas.gruposantander.es/WebEmpresas/servlet/webempresas.servlets.*
  • https://extranet.banesto.es/*/loginParticulares.htm
  • https://extranet.banesto.es/npage/OtrosLogin/LoginIBanesto.htm
  • 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://intelvia.cajamurcia.es/2043/entrada/01entradaencrip.htm
  • https://internetbanking.aib.ie/hb1/roi/signon
  • https://light.webmoney.ru/default.aspx
  • https://lot-port.bcs.ru/names.nsf?#ogin*
  • https://moj.multibank.pl/accounts_list.aspx*
  • https://moj.multibank.pl/top.aspx
  • https://montevia.elmonte.es/cgi-bin/INclient_2098*
  • 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://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/login.do?method=login*
  • https://onlineeast#.bankofamerica.com/*
  • 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://secure.inteligo.com.pl/web*
  • 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*.bmo.com/OLB/mes/sec
  • https://www*.bmo.com/OLB?id=*
  • https://www*.psk.co.at/InternetBanking/InternetBanking/*d=*
  • 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.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.ebgz.pl/jbank-web/jbank/logged/afterLogin.do*
  • https://www.fibancmediolanum.es/BasePage.aspx*
  • https://www.gbw2.it/cbl/jspPages/form_login_AV.jsp*
  • https://www.gem24.pl/NS24Web/pages/myAccounts.jsp*
  • https://www.gruposantander.es/*
  • https://www.gruposantander.es/bog/sbi*?ptns=acceso*
  • https://www.gruppocarige.it/grps/vbank/jsp/login.jsp
  • https://www.halifax-online.co.uk/MyAccounts/MyAccounts.aspx*
  • https://www.halifax-online.co.uk/_mem_bin/*
  • https://www.halifax-online.co.uk/_mem_bin/formslogin.asp*
  • https://www.in-biz.it*
  • https://www.isbank.com.tr/Internet/ControlLoader.aspx*
  • https://www.isideonline.it/relaxbanking/sso.Login*
  • https://www.iwbank.it/private/index_pub.jhtml*
  • https://www.kb24.pl/MojRachunek*
  • https://www.mybank.alliance-leicester.co.uk/login/*
  • https://www.nwolb.com/Login.asp*
  • https://www.nwolb.com/Login.aspx*
  • https://www.nwolb.com/help.aspG
  • https://www.paypal.com/*/webscr?cmd=_account
  • https://www.paypal.com/*/webscr?cmd=_login-done*
  • https://www.pocztowy24.pl/web*
  • https://www.rbsdigital.com/Login.asp*
  • https://www.sabadellatlantico.com/es/*
  • https://www.scotiaonline.scotiabank.com/html/SOPStyles.css
  • https://www.scotiaonline.scotiabank.com/html/en/AccessCode_About.html
  • https://www.scotiaonline.scotiabank.com/html/en/ScotiaCardSecurityCode_About.html
  • https://www.scotiaonline.scotiabank.com/html/s_code.js
  • https://www.scotiaonline.scotiabank.com/online/index.jsp?language=French
  • https://www.scotiaonline.scotiabank.com/online/start.jsp
  • https://www.scotiaonline.scotiabank.com/online/start.jsp?language=English#
  • https://www.scotiaonline.scotiabank.com/online/start.jsp?language=French#
  • https://www.scotiaonline.scotiabank.com/portal/index.jsp
  • 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.wellsfargo.com/*
  • https://www1.royalbank.com/cgi-bin/rbaccess/rbcgi3m01*
  • https://www1.royalbank.com/cgi-bin/rbaccess/rbunxcgi*
  • https://www2.bancopopular.es/AppBPE/servlet/servin*

It attempts to steal information from the following banks and/or other financial institutions:

  • AIB
  • ANZ
  • Alliance & Leicester
  • BBVA
  • BG Net Plus
  • Banca Intesa
  • Bancaja
  • Banco Herrero
  • Banco Pastor
  • Banco Popular
  • Banesto
  • Banif
  • Bank of America
  • Banque Populaire
  • Barclays
  • BrokerCreditService
  • CCM
  • Caixa Girona
  • Caixa Laietana
  • Caixa Ontinyent
  • Caixa Sabadell
  • Caixa Tarragona
  • Caja Badajoz
  • Caja Canarias
  • Caja Circulo
  • Caja Granada
  • Caja Laboral
  • Caja Madrid
  • Caja Murcia
  • Caja Vital
  • Caja de Avila
  • Caja de Jaen
  • Cajarioja
  • Cajasol
  • Chase
  • Citibank
  • Citizens
  • Clavenet
  • Clydesdale
  • Co-Operativebank
  • DAB
  • E-Gold
  • Ebay
  • Fibanc Mediolanum
  • Fifth Third
  • Gruppo Carige
  • HSBC
  • Halifax
  • IS Bank
  • IW Bank
  • Iside
  • Lloyds
  • National City
  • Nationwide
  • Natwest
  • OSPM
  • Openbank
  • PayPal
  • PosteItaliane
  • Procredit
  • Qui UBI
  • RBS
  • Raiffeisen
  • Rupay
  • Sabadell Atlantico
  • Santander
  • Scotia Bank
  • Scrigno
  • Secservizi
  • Smile
  • Suntrust
  • TD Canada Trust
  • US Bank
  • Unicaja
  • Uno-E
  • Wachovia
  • Washington Mutual
  • Webmoney Keeper Light
  • Wells Fargo
  • Yandex
  • Yorkshire

Stolen Information

This spyware sends the gathered information via HTTP POST to the following URL:

  • http://{BLOCKED}.{BLOCKED}.44.42/~heheheyo/forum/post_now.php

Variant Information

This spyware has the following MD5 hashes:

  • d1e7f1bfd7bddcbbd657b0129fd01a21

It has the following SHA1 hashes:

  • 681772b32a8588a622ffd51c72141a032d4d021f

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.918.17

FIRST VSAPI PATTERN DATE:

22 Mar 2011

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Identify and delete files detected as TSPY_ZBOT.WITU using the Recovery Console

[ Learn More ]

Step 3

Delete this registry value

[ Learn More ]

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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • {random CLSID}=%Application Data%\{random1}\{random}.exe

Step 4

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_ZBOT.WITU. 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.

Step 5

Scan your computer with your Trend Micro product to delete files detected as TSPY_ZBOT.WITU. 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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