TSPY_ZBOT.EZQE

This spyware attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites. It steals CD keys, serial numbers, and/or the application product IDs of certain software. tolen information may be used for profit by cybercriminals who may gain access to the information.

Infection Points

This spyware arrives as a file downloaded from the following URLs:

• http://{BLOCKED}uadg.com/eso/isp.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 running in the affected system's memory:

• explorer.exe
• taskhost.exe
• taskeng.exe
• Dwm.exe
• wscntfy.exe
• ctfmon.exe
• rdpclip.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 of mount point of %Windows%} = %Application Data%\{random1}\{random}.exe

It drops the following files:

• %Application Data%\{random1}\{random}.exe - copy of itself
• %Application Data%\{random2}\{random} - contains encrypted stolen data

(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.)

Other System Modifications

This spyware adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft
{random} =

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\PhishingFilter
Enabled = 0

HKEY_CURRENT_USER\Software\Microsoft\
InternetExplorer\PhishingFilter
EnabledV8 = 0

It creates the following registry entry(ies) to bypass Windows Firewall:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
%WINDOWS%\\EXPLORER.EXE = %WINDOWS%\EXPLORER.EXE:*:Enabled:Windows Explorer

Information Theft

This spyware 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:

• *barclays.es*
• *caixacatalunya.com/*/Home/*,,00.html
• *caixacatalunya.com/*/benvinguda*
• *caixacatalunya.com/*/bienvenida*
• *caixapenedes.com*
• *cajalaboral.com*acceso_es.js
• *cajalaboral.com*home.aspx
• *cam.es*form_camdirecto.js
• *cam.es*inicio.aspx
• *iurisbank.com/isum/Main?ISUM_SCR=login*
• *iurisbank.com/js/checkUsuPass.js
• *iurisbank.com/js/interface.js
• *ruralvia.com/isum/Main?ISUM_SCR=login*
• *ruralvia.com/js/checkUsuPass.js
• *ruralvia.com/js/interface.js
• 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
• https://login.facebook.com/*

It accesses the following site to download its configuration file:

• http://{BLOCKED}lans.ru/eso/esa.sp
• http://{BLOCKED}ksfg.ru/eso/esa.sp
• http://{BLOCKED}seao.com/eso/esa.sp

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

• Barclays
• Caja Laboral
• IS Bank
• Santander

It steals CD keys, serial numbers, and/or the application product IDs of certain software.

Drop Points

The said file is then sent to the following URL via HTTP POST:

• http://{BLOCKED}otor.ru/esp/gujoh.php
• http://{BLOCKED}otor.ru/esp/gujoh.php

Other Details

Based on analysis of the codes, it has the following capabilities:

• This malware is also capable of stealing information such as Personal Certificates(MY), Flashplayer data, and Internet session cookies. It also steals FTP credentials for the following FTP applications: flashxp, ghisler, ipswitch, filezilla, ftpfar, winscp, ftpcommander, coreftp, and smartftp.

It does the following:

• It adds a registry key as part of its installation routine.
• It adds registry entries to disable Internet Explorer PhistingFilter.

Variant Information

This spyware has the following MD5 hashes:

• f3a49e29fdef2471816220aa373be16b

It has the following SHA1 hashes:

• 7c74039292fd16346136c1c5fced563465cef702