TSPY_ZBOT.CAQ
Windows 2000, XP, Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted: Yes
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
130,560 bytes
PE
Yes
11 Nov 2010
Disables Internet Explorer
Arrival Details
This spyware may be downloaded from the following remote sites:
- http://{BLOCKED}chme.ru/upload/update.exe
Installation
This spyware adds the following folders:
- %Application Data%\{random folder name 1}
- %Application Data%\{random folder name 2}
(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} = %Application Data%\{random folder name 1}\{random file name}.exe
It drops the following files:
- %Application Data%\{random folder name 1}\{random file name}.exe - copy of itself
- %Application Data%\{random folder name 2}\{random file name} - 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 as part of its installation routine:
HKEY_CURRENT_USER\Software\Microsoft\
{random characters}
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:
- *bancomediolanum.es*
- *bancomediolanum.es*2011*
- *caixatarragona.es/*oficinacodigo.jsp*
- *cajacanariasonline.cajacanarias.es*
- *e-pueyo.com*centro*
- *https://lineacb.cajabadajoz.es/BEWeb/*/inicio_identificacion.action*
- *inversis.com*
- *online.halifax.es/main*
- *ruralvia.com*
- http://datainfo.es/templates/Art/img/navi/images/bancamarch.php
- http://datainfo.es/templates/Art/img/navi/images/bancocaixageral.php
- http://datainfo.es/templates/Art/img/navi/images/bankoanet.php
- http://datainfo.es/templates/Art/img/navi/images/bankpymenet.php
- http://datainfo.es/templates/Art/img/navi/images/bk.php
- http://datainfo.es/templates/Art/img/navi/images/cai.php
- http://datainfo.es/templates/Art/img/navi/images/caixalaietana.php
- http://datainfo.es/templates/Art/img/navi/images/caixamanlleu.php
- http://datainfo.es/templates/Art/img/navi/images/cajacirculo.php
- http://datainfo.es/templates/Art/img/navi/images/cajaduero.php
- http://datainfo.es/templates/Art/img/navi/images/cajasegovia.php
- http://datainfo.es/templates/Art/img/navi/images/cam.php
- http://datainfo.es/templates/Art/img/navi/images/ccm.php
- http://datainfo.es/templates/Art/img/navi/images/cjgranada.php
- http://datainfo.es/templates/Art/img/navi/images/cxped.php
- http://datainfo.es/templates/Art/img/navi/images/db.php
- http://datainfo.es/templates/Art/img/navi/images/ingeniero.php
- http://datainfo.es/templates/Art/img/navi/images/lacan.php
- http://datainfo.es/templates/Art/img/navi/images/rur.php
- http://datainfo.es/templates/Art/img/navi/images/san.php
- http://datainfo.es/templates/Art/img/navi/images/solbank.php
- http://datainfo.es/templates/Art/img/navi/images/val.php
- https://*.caja-granada.es*
- https://*activa24.ccm.es*
- https://*bancae.caixapenedes.com*
- https://*bancocaixageral.es*
- https://*bancodevalencia.es*
- https://*bankoanet.com/*
- https://*bankpymenet.com*
- https://*barclays.es*
- https://*bbvanetoffice.com*
- https://*bbvanetoffice.com/DFAUTH/slod/DFServlet*
- https://*bbvanetoffice.com/local_bdno/login_bbvanetoffice.html
- https://*cai.es*
- https://*caionline.cai.es*
- https://*caixalaietana.es*
- https://*caixatarragona.es*
- https://*caja-granada.es*
- https://*caja-ingenieros.es*
- https://*cajacanariasonline.cajacanarias.es*
- https://*cajacirculo.es*
- https://*cajaduero.es*
- https://*cajaelectronica.cajadeavila.es*
- https://*cajarioja.es*
- https://*cajasegovia.es*
- https://*ccm.es*
- https://*ccm.es/*
- https://*deutsche-bank.es*
- https://*deutsche-bank.es/*
- https://*gruposantander.es/bog/sbi*
- https://*lacajadecanarias.es*
- https://*lineacb.cajabadajoz.es*
- https://*mediolanum.es*
- https://*oficina24hores.caixagirona.es*
- https://*ruralvia.com/isum/Main*
- https://*sanostra.es*
- https://*servicash.cajaextremadura.es*
- https://*solbank.com*
- https://*telematic.caixamanlleu.es*
- https://*uno-e.com/*
- https://*vitalnet.cajavital.es*
- https://banca.cajaguadalajara.biz/ISMC/Guadalajara/INclient.jsp*
- https://be.bancogallego.es/inithome*
- https://cajaelectronica.caja-granada.es*
- https://net.kutxa.net/*/tmpl/es/loginkn*
- https://online.halifax.es/main*
- https://seguro.cam.es/camd/SvlLoginCAM*
- https://telemarch.bancamarch.es/*
- https://vitalnet.cajavital.es/BEWeb/*/inicio_identificacion.action*
- https://www.iknet.iparkutxa.es/intro*
It accesses the following site to download its configuration file:
- http://{BLOCKED}rrel.net/cfg/9sdffreebarrel.jpg
- http://{BLOCKED}beer.com/cfg/99sdsupplybeer.jpg
- http://{BLOCKED}eer.com/cfg/23sf3issuebeer.jpg
- http://{BLOCKED}eronline.net/cfg/933fafreebeeronline.jpg
- http://{BLOCKED}brecords.ru/cfg/lks34bestwebrecords.jpg
It attempts to steal information from the following banks and/or other financial institutions:
- BBVA
- Barclays
- CCM
- Caixa Girona
- Caixa Laietana
- Caixa Tarragona
- Caja Badajoz
- Caja Canarias
- Caja Circulo
- Caja Granada
- Caja Vital
- Caja de Avila
- Cajarioja
- Kutxanet
- Santander
- Uno-E
Drop Points
Stolen information is uploaded to the following websites:
- http://{BLOCKED}chme.ru/more/contacts.php
Other Details
This spyware does the following:
- Adds the following registry entries to disable Internet Explorer (IE):
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PhishingFilter
Enabled = 0
EnabledV8 = 0 - Steals the following information:
- Personal certificates (MY)
- FTP credentials for the following FTP applications:
- FlashXP
- Ghisler
- IPSwitch
- Filezilla
- FTPFar
- WinSCP
- FTPCommander
- CoreFTP
- SmartFTP
- Flashplayer data
- Internet session cookies
Variant Information
This spyware has the following MD5 hashes:
- 123316184c1c2cdd67c7e5f0863ea12b
It has the following SHA1 hashes:
- 03b8137a23c3111348173446c434770d3b03ced4
SOLUTION
8.900
7.612.01
11 Nov 2010
11/11/2010 12:00:00 AM
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
Restart in Safe Mode
Step 3
Search and delete this folder
- %Application Data%\{random folder name 1}
- %Application Data%\{random folder name 2}
Step 4
Delete this registry 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.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- {GUID} = %Application Data%\{random folder name 1}\{random file name}.exe
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List
- %Windows%\EXPLORER.EXE = %Windows%\EXPLORER.EXE:*:Enabled:Windows Explorer
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PhishingFilter
- Enabled = 0
- EnabledV8 = 0
Step 5
Delete this registry key
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
- {random characters}
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_ZBOT.CAQ. 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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