TROJ_ZBOT.CHO
Windows 2000, XP, Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan arrives as a file downloaded from the following URL:
http://fart2071.com/img/test2071.exe
It sends the gathered information via HTTP POST to the following URL:
http://fart2074.net/~user0101/2071/gate.php
This Trojan accesses the following sites to download its configuration file:
http://fart2074.net/~user0101/2071/bt/config.bin
http://fart2071.com/img/nastr.bin
This Trojan may be dropped by other malware. It may be unknowingly downloaded by a user while visiting malicious websites.
It creates folders where it drops its files. It may be injected into processes running in memory.
It attempts to steal sensitive online banking information, such as user names and passwords. This routine risks the exposure of the user's account information, which may then lead to the unauthorized use of the stolen data. It attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites.
TECHNICAL DETAILS
Arrival Details
This Trojan may be dropped by other malware.
It may be unknowingly downloaded by a user while visiting malicious websites.
It may be downloaded from the following remote sites:
- http://{BLOCKED}071.com/img/test2071.exe
Installation
This Trojan drops the following files:
- %Application Data%\{random1}\{random}.exe - copy of itself
- %Application Data%\{random2}\{random}.{3 random alpha character extension name} - encrypted file
(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 is injected into the following processes running in memory:
- ctfmon.exe
- dwm.exe
- explorer.exe
- rdpclip.exe
- taskeng.exe
- taskhost.exe
- wscntfy.exe
It may be injected into processes running in memory.
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{GUID} = {malware path and file name}
Information Theft
This Trojan monitors the Internet Explorer (IE) activities of the affected system, specifically the address bar or title bar. It recreates a legitimate website with a spoofed login page if a user visits banking sites with the following strings in the address bar or title bar:
- *secure.lloydstsb.co.uk*
- *secure.lloydstsb.co.uk/*/account_overview*
- *abbeynational.co.uk/EBAN_ENS/*
- *abbeynational.co.uk/EBAN_ENS/BtoChannelDriver*
- https://www.mybank.alliance-leicester.co.uk/view_accounts/*
- https://www.mybank.alliance-leicester.co.uk/login/PM4point1.asp
- *barclays.co.uk/olb/*/LoginPasscode.do
- https://ibank.barclays.co.uk/olb/*/LoginMember.do
- https://www.halifax-online.co.uk/_mem_bin/*
- https://www.halifax-online.co.uk/MyAccounts/MyAccounts.aspx*
- https://www.halifax-online.co.uk/MyAccounts/*
- https://www.hsbc.co.uk/*/personal/internet-banking*
- */my.ebay.com/*CurrentPage=MyeBayPersonalInfo*
- *.ebay.com/*eBayISAPI.dll?*
- https://www.us.hsbc.com/*
- https://www.e-gold.com/acct/li.asp
- https://www.e-gold.com/acct/balance.asp*
- https://online.wellsfargo.com/das/cgi-bin/session.cgi*
- https://www.wellsfargo.com/*
- https://online.wellsfargo.com/login*
- https://online.wellsfargo.com/signon*
- https://www.paypal.com/*/webscr?cmd=_account
- https://www.paypal.com/*/webscr?cmd=_login-done*
- https://www#.usbank.com/internetBanking/LoginRouter
- https://easyweb*.tdcanadatrust.com/servlet/*FinancialSummaryServlet*
- https://www#.citizensbankonline.com/*/index-wait.jsp
- https://onlinebanking.nationalcity.com/OLB/secure/AccountList.aspx
- https://www.suntrust.com/portal/server.pt*parentname=Login*
- https://www.53.com/servlet/efsonline/index.html*
- https://web.da-us.citibank.com/*BS_Id=MemberHomepage*
- https://online*.bankofamerica.com/cgi-bin/*GotoWelcome*
- https://onlineeast#.bankofamerica.com/cgi-bin/ias/*
- https://chaseonline.chase.com/MyAccounts.*
- https://chaseonline.chase.com/MyAccounts.aspx*
- https://online.wamu.com/Servicing/Servicing.aspx?targetPage=AccountSummary
- https://onlinebanking#.wachovia.com/myAccounts.aspx?referrer=authService
- https://resources.chase.com/MyAccounts.aspx
- https://bancaonline.openbank.es/servlet/PProxy?*
- https://extranet.banesto.es/*/loginParticulares.htm
- https://banesnet.banesto.es/*/loginEmpresas.htm
- https://empresas.gruposantander.es/WebEmpresas/servlet/webempresas.servlets.*
- https://www.gruposantander.es/bog/sbi*?ptns=acceso*
- https://www.bbvanetoffice.com/local_bdno/login_bbvanetoffice.html
- https://www.bancajaproximaempresas.com/ControlEmpresas*
- https://www.citibank.de*
- https://probanking.procreditbank.bg/main/main.asp*
- https://ibank.internationalbanking.barclays.com/logon/icebapplication*
- https://ibank.barclays.co.uk/olb/x/LoginMember.do
- https://online-offshore.lloydstsb.com/customer.ibc
- https://online-business.lloydstsb.co.uk/customer.ibc
- https://www.dab-bank.com*
- http://www.hsbc.co.uk/1/2/personal/internet-banking*
- https://www.nwolb.com/Login.aspx*
- https://home.ybonline.co.uk/login.html*
- https://home.cbonline.co.uk/login.html*
- https://welcome27.co-operativebank.co.uk/CBIBSWeb/start.do
- https://welcome23.smile.co.uk/SmileWeb/start.do
- https://www.halifax-online.co.uk/_mem_bin/formslogin.asp*
- https://www2.bancopopular.es/AppBPE/servlet/servin*
- https://www.bancoherrero.com/es/*
- https://pastornetparticulares.bancopastor.es/SrPd*
- https://intelvia.cajamurcia.es/2043/entrada/01entradaencrip.htm
- https://www.caja-granada.es/cgi-bin/INclient_2031
- https://www.fibancmediolanum.es/BasePage.aspx*
- https://carnet.cajarioja.es/banca3/tx0011/0011.jsp
- https://www.cajalaboral.com/home/acceso.asp
- https://www.cajasoldirecto.es/2106/*
- https://www.clavenet.net/cgi-bin/INclient_7054
- https://www.cajavital.es/Appserver/vitalnet*
- https://banca.cajaen.es/Jaen/INclient.jsp
- https://www.cajadeavila.es/cgi-bin/INclient_6094
- https://www.caixatarragona.es/esp/sec_1/oficinacodigo.jsp
- http://caixasabadell.net/banca2/tx0011/0011.jsp
- https://www.caixaontinyent.es/cgi-bin/INclient_2045
- https://www.caixalaietana.es/cgi-bin/INclient_2042
- https://www.cajacirculo.es/ISMC/Circulo/acceso.jsp
- https://areasegura.banif.es/bog/bogbsn*
- https://www.bgnetplus.com/niloinet/login.jsp
- https://www.caixagirona.es/cgi-bin/INclient_2030*
- https://www.unicaja.es/PortalServlet*
- https://www.sabadellatlantico.com/es/*
- https://oi.cajamadrid.es/CajaMadrid/oi/pt_oi/Login/login
- https://www.cajabadajoz.es/cgi-bin/INclient_6010*
- https://extranet.banesto.es/npage/OtrosLogin/LoginIBanesto.htm
- https://montevia.elmonte.es/cgi-bin/INclient_2098*
- https://www.cajacanarias.es/cgi-bin/INclient_6065
- https://oie.cajamadridempresas.es/CajaMadrid/oie/pt_oie/Login/login_oie_1
- https://www.gruppocarige.it/grps/vbank/jsp/login.jsp
- https://bancopostaonline.poste.it/bpol/bancoposta/formslogin.asp
- https://privati.internetbanking.bancaintesa.it/sm/login/IN/box_login.jsp
- https://hb.quiubi.it/newSSO/x11logon.htm
- https://www.iwbank.it/private/index_pub.jhtml*
- https://web.secservizi.it/siteminderagent/forms/login.fcc
- https://www.isideonline.it/relaxbanking/sso.Login*
- https://scrigno.popso.it*
- https://www.halifax-online.co.uk/MyAccounts/MyAccounts.aspx*
- https://ibank.barclays.co.uk/olb/x/LoginMember.do
- https://www.halifax-online.co.uk/_mem_bin/*
- https://online*.lloydstsb.co.uk/logon.ibc
- https://home.ybonline.co.uk/ral/loginmgr/*
- https://www.mybank.alliance-leicester.co.uk/login/*
- https://www.ebank.hsbc.co.uk/main/IBLogon.jsp
- https://www.isbank.com.tr/Internet/ControlLoader.aspx*
- https://light.webmoney.ru/default.aspx
- https://olb2.nationet.com/MyAccounts/frame_MyAccounts_WP2.asp*
- https://www*.banking.first-direct.com/1/2/*
- https://cardsonline-consumer.com/RBSG_Consumer/VerifyLogin.do
- *//money.yandex.ru/index.xml
- *//money.yandex.ru/
- *//mail.yandex.ru/index.xml
- *//mail.yandex.ru/
- https://www.rbsdigital.com/Login.asp*
- https://banking*.anz.com/*
- https://olb2.nationet.com/signon/signon*
- https://www.nwolb.com/Login.asp*
- https://home2ae.cd.citibank.ae/CappWebAppAE/producttwo/capp/action/signoncq.do
- https://internetbanking.aib.ie/hb1/roi/signon
- https://lot-port.bcs.ru/names.nsf?#ogin*
- *wellsfargo.com/*
- https://web.da-us.citibank.com/cgi-bin/citifi/portal/l/l.do
- https://web.da-us.citibank.com/cgi-bin/citifi/portal/l/autherror.do*
- https://rupay.com/index.php
- https://light.webmoney.ru/default.aspx
- *banquepopulaire.fr/*
- http://*.osmp.ru/
- https://www.uno-e.com/local_bdnt_unoe/Login_unoe2.html
- https://www.ccm.es/cgi-bin/INclient_6105
It attempts to steal sensitive online banking information, such as user names and passwords. This routine risks the exposure of the user's account information, which may then lead to the unauthorized use of the stolen data.
It accesses the following site to download its configuration file:
- http://{BLOCKED}074.net/~user0101/2071/bt/config.bin
- http://{BLOCKED}071.com/img/nastr.bin
The downloaded file contains information where the malware can download an updated copy of itself, and where to send its stolen data.
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
- First Direct
- Gruppo Carige
- HSBC
- Halifax
- IS Bank
- IW Bank
- Iside
- Lloyds
- Microsoft
- National City
- Nationwide
- Natwest
- OSPM
- Openbank
- PayPal
- PosteItaliane
- Procredit
- Qui UBI
- RBS
- Rupay
- Sabadell Atlantico
- Santander
- Scrigno
- Secservizi
- Smile
- Suntrust
- TD Canada Trust
- US Bank
- Unicaja
- Uno-E
- Wachovia
- Washington Mutual
- Webmoney Keeper Light
- Wells Fargo
- Yandex
- Yorkshire
Drop Points
Stolen information is uploaded to the following websites:
- http://{BLOCKED}074.net/~user0101/2071/gate.php
Variant Information
This Trojan has the following MD5 hashes:
- de364563195635757e59de6584f249c4
It has the following SHA1 hashes:
- cd998826f7ea91f12ac47cfd89bfcfd982823597
SOLUTION
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
Scan your computer with your Trend Micro product and note files detected as TROJ_ZBOT.CHO
Step 3
Restart in Safe Mode
Step 4
Delete the registry entry with an unknown data 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.
DATA_GENERIC_KEYStep 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_ZBOT.CHO. 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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