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Threat Encyclopedia

TSPY_ZBOT.BBH

ANALYSIS BY

Kathleen Notario


PLATFORM:

Windows 2000, XP, 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 attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites.

TECHNICAL DETAILS

File Size:

137,216 bytes

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

01 Oct 2010

Payload:

Downloads files, Drops files

Arrival Details

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

  • http://{BLOCKED}oue.com/ptz/ptg.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:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

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:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

Download Routine

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

  • http://{BLOCKED}soue.com/ptz/por.tu

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:

  • !*.microsoft.com/*
  • !http://*myspace.com*
  • !http://*odnoklassniki.ru/*
  • !http://vkontakte.ru/*
  • *arquia.es*flash.asp
  • *barclays.es*
  • *bbvanetoffice.com*DFServlet
  • *bbvanetoffice.com*login_bbvanetoffice.html
  • *caixacatalunya.com/*/Home/*,,00.html
  • *caixacatalunya.com/*/benvinguda*
  • *caixacatalunya.com/*/bienvenida*
  • *caixapenedes.com*
  • *caixasabadell.net*
  • *caixasabadell.net*teclado.js
  • *caixatarragona.es*
  • *cajaduero.es*
  • *cajalaboral.com*acceso_es.js
  • *cajalaboral.com*home.aspx
  • *cam.es*
  • *cam.es*form_camdirecto.js
  • *ce.caixalaietana.es*inicio_identificacion.action
  • *https://caixadirecta.cgd.pt/CaixaDirecta/profile.do*
  • *iurisbank.com/isum/Main?ISUM_SCR=login*
  • *iurisbank.com/js/checkUsuPass.js
  • *iurisbank.com/js/interface.js
  • *kutxa.net*loginkn.jsp*
  • *lloyds*
  • *lloyds*layout.js
  • *net.kutxa.net*styles_acceso.css
  • *ruralvia.com/isum/Main?ISUM_SCR=login*
  • *ruralvia.com/js/checkUsuPass.js
  • *ruralvia.com/js/interface.js
  • http*cajamadridempresas.es*login_nuevo_oie.js
  • http*cajamadridempresas.es*login_oie_*
  • http*empresas.gruposantander.es*login.js
  • http*empresas.gruposantander.es/WebEmpresas/servlet/webempresas.servlets.CompressJSP?JSP=nueva_imagen/inicio.jsp*
  • http*inversis.com*
  • http*inversis.com*/js/inversiones/common.js
  • http*online.halifax.es*
  • http://caixatarragona.es/img/logo_discriminador.gif
  • https://caixasabadell.net/banca2/comun/NW/img/logoUnnim.gif
  • https://login.facebook.com/*
  • https://oie.cajamadridempresas.es/CajaMadrid/oie/imagenes/logocm.gif
  • https://seguro.cam.es/camd/SvlLoginCAM
  • https://www.barclays.es/publico/images/logo.png
  • https://www.bbvanetoffice.com/mult/logo_nuevo.gif
  • https://www.caixacatalunya.com/NASApp/ceconline/flow.jsp
  • https://www.caixacatalunya.com/caixacat/eng/ccpublic/img_comun/redlogo_small.gif
  • https://www.caixapenedes.com/imatges/logo_lema_cat.gif
  • https://www.caixatarragona.es/img/b24h_submit.gif
  • https://www.cajaduero.es/CajaElectronica/images/CajaElectronica/logocajaduero.gif
  • https://www.cajalaboral.com/clweb/img/all/logo.png
  • https://www.cam.es/Imagenes%20Caja%20Ahorros%20Mediterranea/ES/Logos-Simbolos/Simbolos/logo.jpg
  • https://www.iurisbank.com/es_ES/img/logo_acceso_3171.gif
  • https://www.ruralvia.com/estilos_prtl/css_acceso/img/logorvia05.gif

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

  • BBVA
  • Barclays
  • Caixa Catalunya
  • Caixa Geral de Depósitos
  • Caixa Laietana
  • Caixa Penedès
  • Caixa Sabadell
  • Caixa Tarragona
  • Caja Duero
  • Caja Laboral
  • Caja Madrid
  • Caja Mediterráneo
  • Caja Rural
  • Caja de Arquitectos
  • Facebook
  • Halifax
  • IS Bank
  • Kutxanet
  • Lloyds
  • Microsoft
  • Myspace
  • Odnoklassniki
  • Santander
  • Vkontakte

Stolen Information

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

  • http://{BLOCKED}rborj.com/prt/jkkoz.php

Variant Information

This spyware has the following MD5 hashes:

  • d9c9c3ff4495a62c50947e2929eb8115

It has the following SHA1 hashes:

  • b4f7fbcc43121c3036aa89a38199d661b0d579a6

SOLUTION

Minimum Scan Engine:

8.900

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

Identify and delete files detected as TSPY_ZBOT.BBH 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

Search and delete this folder

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %Application Data%\{random1}
  • %Application Data%\{random2}

Step 5

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