TSPY_ZBOT.IMQU

This ZeuS variant uses an encryption algorithm that enables it to evade antivirus solutions.

To get a one-glance comprehensive view of the behavior of this Spyware, refer to the Threat Diagram shown below.

This spyware may gather certain information from the affected system. It contains an updated decryption function for its configuration file.

This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

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

It deletes the initially executed copy of itself.

Arrival Details

This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be downloaded from the following remote site(s):

• http://{BLOCKED}afiel.ru/bin/xxl.exe

Installation

This spyware drops the following files:

• %Application Data%\{random1}\{random}.exe - copy of itself
• %Application Data%\{random2}\{random}.{random} - 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 creates the following folders:

• %Application Data%\{random letters 1}
• %Application Data%\{random letters 2}

(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 adds the following mutexes to ensure that only one of its copies runs at any one time:

• Global\{GUID}
• Local\{GUID}

It is injected into the following processes running in memory:

• ctfmon.exe
• dwm.exe
• explorer.exe
• rdpclip.exe
• taskeng.exe
• taskhost.exe
• wscntfy.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
{GUID} = "%Application Data%\{random letters 1}\{random letters}.exe"

Other System Modifications

This spyware adds the following registry keys as part of its installation routine:

HKEY_CURRENT_USER\Software\Microsoft\
{random letters}

Information Theft

This spyware accesses the following site to download its configuration file:

• http://{BLOCKED}afiel.ru/bin/xxl.bin
• http://{BLOCKED}ohch.ru/bin/xxl.bin
• http://{BLOCKED}hohz.ru/bin/xxl.bin
• http://{BLOCKED}euph.ru/bin/xxl.bin

It 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
• */my.ebay.com/*CurrentPage=MyeBayPersonalInfo*
• *banquepopulaire.fr/*
• *wellsfargo.com/*
• http*.webcashmanager.com*Login*
• http*.webcashmgmt.com*Login*
• http*/phcp/econnection/login/js/login.htm*
• http*/phcp/servlet*Login*
• http*/wcmfd/*Login*
• http*/wcmfd/js/LoginCSS.js*
• http*business-eb.ibanking-services.com*general.js*
• http*business-eb.ibanking-services.com/K1/*login*jsp*
• http*ebanking-services.com/*
• http*sso.uboc.com/js/ub-common.js*
• http*sso.uboc.com/obc/forms/login.fcc*
• http*treasury.pncbank.com/portal/esec/login.ht*
• http*treasury.pncbank.com/portal/service/js/loginproc.js*
• http*www.northerntrust.com/*
• http*www.northerntrust.com/incs/scripts.js
• http*www3683.ntrs.com*
• http://*.osmp.ru/
• http://caixasabadell.net/banca2/tx0011/0011.jsp
• http://www.hsbc.co.uk/1/2/personal/internet-banking*
• https*/pub/html/login.html*
• https://*.ebanking-services.com/AUTH/WebResource.axd*
• https://*.ing.nl/internetbankieren/SesamLoginServlet*
• https://*.web-access.com*welcome.cgi*
• https://*/cmserver*verify.cfm*
• https://*/onlineserv/CM/*
• https://*/onlineserv/CM/std/js/en/disofactor.js*
• https://*blilk.com/Core/Authentication/MFA*.aspx*
• https://*blilk.com/include/Utils.js*
• https://*cashman*
• https://*cmserver/include/ui/uiScripts.js*
• https://*ebanking.hsbc.com.hk/1/2/logon*
• https://*login_ui_includes/login_brandScripts.js*
• https://a248.e.akamai.net/6/248/3583/000/wellsoffice.wellsfargo.com/ceoportal/framework/skins/default/js/wria/wria-core-min.js*
• https://access.jpmorgan.com/appmanager/jpmalogonportal/jpmalogonhome*
• https://areasegura.banif.es/bog/bogbsn*
• https://authmaster.nationalcity.com/tmgmt/js/bharosa_uio.js*
• https://authmaster.nationalcity.com/tmgmt/wslogin.jsp*
• 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://bolb-east.associatedbank.com/*
• https://bolb-east.associatedbank.com/ui/base/js/jquery.js*
• https://businessaccess.citibank.citigroup.com/cbusol/do/htmlserver/js/env.js*
• https://businessaccess.citibank.citigroup.com/cbusol/signon.do*
• https://businessonline.huntington.com/common/scripts/common.js*
• https://businessonline.tdbank.com/corporatebankingweb/core/login.aspx*
• https://businessonline.tdbank.com/CorporateBankingWeb/VAM/2_0_2/VAM.js*
• https://cardsonline-consumer.com/RBSG_Consumer/VerifyLogin.do
• https://carnet.cajarioja.es/banca3/tx0011/0011.jsp
• https://cashmgt.firsttennessee.biz/cb/servlet/cb/login.jsp*
• https://chsec.wellsfargo.com/login/login.fcc*
• https://cm.netteller.com/login2008/Authentication/Views/Login.aspx*
• https://cm.netteller.com/login2008/Scripts/NetTellerCorners.js*
• https://commercial.wachovia.com/Online/Financial/Business/Service?action=Login*
• https://commercial.wachovia.com/Online/Registration/jsinclude/bidata.js
• https://direct.53.com/logon53Direct.jsp*
• https://direct.bankofamerica.com/BofaDirect/javascript/js.util.uiutils.js*
• https://direct.bankofamerica.com/Core/servlet/BofaDirect.BankofAmericaDirect.BankofAmericaDirectServlet?page=PgLogin*
• https://easyweb*.tdcanadatrust.com/servlet/*FinancialSummaryServlet*
• https://ecash.*
• https://empresas.gruposantander.es/WebEmpresas/servlet/webempresas.servlets.*
• https://express.53.com/express/logon.action*
• https://express.53.com/express/rsa/RSAScript.js*
• 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://internetbanking.firsttennessee.biz/webcm/customer1.asp*
• https://light.webmoney.ru/default.aspx
• https://lot-port.bcs.ru/names.nsf?#ogin*
• 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://olb.gnty.com/Login/Username.aspx*
• 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/login.do?method=login* GP
• https://onlineeast#.bankofamerica.com/cgi-bin/ias/*/GotoWelcome
• https://pastornetparticulares.bancopastor.es/SrPd*
• https://premierview.membersunited.org/Core/login.aspx*
• https://premierview.membersunited.org/WebResource.axd*
• 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://securentrycorp.*/Authentication/lib.js*
• https://securentrycorp.*/Authentication/zbf/k/*
• https://singlepoint.usbank.com/cs70_banking/logon/sbuser*
• https://singlepoint.usbank.com/cs70_banking/user/script/login.js*
• https://static.my.commbank.com.au/static/R250/fo/js/Preload-min.js*
• https://treas-mgt.frostbank.com/rdp/cgi-bin/welcome.cgi*
• 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://wellsoffice.wellsfargo.com/ceoportal/signon/index.jsp*
• 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.53.com/wps/portal/*
• https://www.53.com/wps/portal/cblogin*
• https://www.bancajaproximaempresas.com/ControlEmpresas*
• https://www.bancoherrero.com/es/*
• https://www.bbvanetcash.com/local_tlsb/KDPOSolicitarCredencialesES_es.html
• 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.commercial.hsbc.com.hk/1/2/!ut/p/kcxml/*
• https://www.corporatebanking.firsttennessee.com/cb/servlet/cb/jsp-ns/login.jsp*
• 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.fibancmediolanum.es/BasePage.aspx*
• https://www.gbw2.it/cbl/jspPages/form_login_AV.jsp* GP
• 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.huntington.com/scripts/onlinebanking.js*
• https://www.in-biz.it* GP
• 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.my.commbank.com.au/netbank/Logon/Logon.aspx*
• https://www.mybank.alliance-leicester.co.uk/login/*
• https://www.nationalcity.com/consultnc/*
• https://www.nationalcity.com/sharedApp/js/isEmpty.js*
• 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.us.hsbc.com/1/2/3/business/online/business-internet-banking/log-on*
• https://www.us.hsbc.com/1/themes/html/hbus_common/HSBC-top_section.js*
• https://www.wellsfargo.com/*
• https://www2.bancopopular.es/AppBPE/servlet/servin*
• https://www3683.ntrs.com/ptl/ptl/javascript/NavigationMenuScripts.js*
• https://www8.comerica.com/*
• https://www8.comerica.com/images/sdc.js

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

• AIB
• Alliance & Leicester
• ANZ
• Associated Bank
• 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
• Comerica
• DAB
• E-Gold
• Ebay
• Fibanc Mediolanum
• Fifth Third
• First Direct
• First Tennessee
• Frost Bank
• Gruppo Carige
• Guaranty Bond Bank
• Halifax
• HSBC
• Huntington
• ING
• IS Bank
• Iside
• IW Bank
• JP Morgan
• Lloyds
• National City
• Nationwide
• Natwest
• NetTeller
• Northern Trust
• Openbank
• OSPM
• PayPal
• PNC
• PosteItaliane
• Premier View
• Procredit
• Qui UBI
• RBS
• Rupay
• Sabadell Atlantico
• Santander
• Scrigno
• Secservizi
• Smile
• Suntrust
• TD Bank
• TD Canada Trust
• Treasury Gateway
• Unicaja
• Union Bank of California
• Uno-E
• US Bank
• 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}othe.ru/xxl/progress.php

Other Details

This spyware deletes the initially executed copy of itself

NOTES:

It may also gather the following information from the affected system:

• Data on cookie files (URLs)
• Email-related information such as account names, email addresses, passwords, server data, and server port
• Email information stored in the users' Windows Address Book (WAB) file

It contains an updated decryption function for its configuration file.