TSPY_ZBOT.BWF

This spyware creates folders where it drops its files. It may be injected into processes running in memory.

It opens random ports.

Infection Points

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

• http://{BLOCKED}oong.ru/bin/saejuogi.exe

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 spyware 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}

It 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.)

Other System Modifications

This spyware 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

Backdoor Routine

This spyware opens a random port to allow a remote user to connect to the affected system. Once a successful connection is established, the remote user executes commands on the affected system.

Information Theft

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

• http://{BLOCKED}yeew.ru/bin/saejuogi.bin
• http://{BLOCKED}aepo.ru/bin/saejuogi.bin
• http://{BLOCKED}yeew.ru/bin/saejuogi.bin
• http://{BLOCKED}aepi.ru/bin/saejuogi.bin
• http://{BLOCKED}ejae.ru/bin/saejuogi.bin
• http://{BLOCKED}ushi.ru/bin/saejuogi.bin
• http://{BLOCKED}fech.ru/bin/saejuogi.bin
• http://{BLOCKED}ilei.ru/bin/saejuogi.bin

The downloaded file contains information where the malware can download an updated copy of itself, and where to send its stolen data.

It targets the following websites:

• http*scripts/injScp.js*
• http://oyehai.ru/script.js
• https://www.commerzbanking.de/*/pgf.html*
• https://www.commerzbanking.de/*/cowis.js*
• https://meine.deutsche-bank.de/*
• https://meine.deutsche-bank.de/*/javascript/global.js*
• https://www.dresdner-privat.de/servlet/P/SSA*do*
• https://www.dresdner-privat.de/SSA_MLS_JAVASCRIPT/mlsgeneral.js*
• https://finanzportal.fiducia.de/*/entry*
• https://finanzportal.fiducia.de/*/portal*
• https://internetbanking.gad.de/ptlweb/WebPortal*
• https://internetbanking.gad.de/images/Ib.js*
• https://my.hypovereinsbank.de/login*
• https://my.hypovereinsbank.de/js/portal.js*
• https://banking.postbank.de/app/welcome.do*
• https://banking.postbank.de/app/login.do*
• https://banking.postbank.de/app/static/js/script.js*
• *.de/portal/portal/*
• https://www.targobank.de/de/*cgi*
• https://www.targobank.de/de/javascript/funcs_global.js*
• https://www.bbvanetoffice.com/BBVANETOFFICE/promocion*
• https://www.bbvanetoffice.com/promocion*
• https://www.bbvanetoffice.com/BBVANETOFFICE/bbvanetoffice/bienvenida*
• https://ing.ingdirect.es/W/Transactional/faces/selectOption?select_op=initLogin*
• https://ing.ingdirect.es/W/Transactional/adf/js/jquery-latest.js*
• https://www.caixapenedes.com*
• https://www.caixapenedes.com/js/niftycube.js
• *ruralvia.com/isum/*login*
• https://ww3.deutsche-bank.es/pbct/login.*
• https://ww3.deutsche-bank.es/db24online/js/login/eStara.js
• https://ww3.deutsche-bank.es/pbct/login*
• https://ww3.deutsche-bank.es/pbct/NetiServlet?neti_id=navigation.bottom*
• https://www.caixacatalunya.com/CDA/caixacat/es/ccpublic/particulars/Home/OthHomePageCas/0,1217,,00.html
• https://www.caixacatalunya.com/NASApp/ceconline/index.jsp*
• https://www.barclays.es/publico/contents/*jsp*
• https://www.barclays.es/publico/js/TextEngine.js
• https://www.sabadellatlantico.com*
• *cajaespana.net*
• https://www.cajaespana.net/convivencia/siglo21/estandar/recursos/tecladovirtual.js
• https://www.solbank.com*
• https://enlinea.cajasur.es/BEWeb/2024/4024/inicio_identificacion.action*
• https://enlinea.cajasur.es/4024/js/loginPin.js*
• https://cajaelectronica.caja-granada.es/BEWeb/2031/2031/inicio_identificacion.action*
• https://cajaelectronica.caja-granada.es/2031/js/MOD3.js*
• https://cajaelectronica.caja-granada.es/BEWeb/2031/2031/not5801_d_COMUN.action?OPERACION=*
• https://activa24.ccm.es/BEWeb/2105/6105/inicio_identificacion.action*
• https://activa24.ccm.es/6105/js/comunBEWEB.js*
• https://be.cajamurcia.es/6043/js/LOGIN2_PORTAL.js
• https://be.cajamurcia.es/BEWeb/2043/6043/inicio_identificacion.action
• https://be.cajamurcia.es/6043/js/MOD3.js
• https://soldirecto.cajasoldirecto.es/2106/js/incluyeDomain.js*
• https://soldirecto.cajasoldirecto.es/BEWeb/2106/2106/inicio_identificacion.action*
• https://soldirecto.cajasoldirecto.es/BEWeb/2106/2106/inicio_identificacion.action*
• https://soldirecto.cajasoldirecto.es/BEWeb/2106/2106/psINICm_0.action*
• https://www.uno-e.com/local_bdnt_unoe/Login_unoe2.html*
• https://www3.altamiraonline.com/AltamiraOnLineWeb/Sesion*
• https://www3.altamiraonline.com/AltamiraOnLineWeb/src/canalInet/md5.js*
• https://pastornet*.bancopastor.es/SrPd*
• *bankinter.com*utils.js*
• *bankinter.com*gzinflate.js.php*
• *bankinter.com/www/es-es/cgi/*+home
• https://oficina24hores.caixagirona.es/BEWeb/2030/1030/inicio_identificacion.action*
• https://oficina24hores.caixagirona.es/*/Js/MOD3.js*
• https://telematic.caixamanlleu.es/ISMC/*/acceso.jsp*
• https://telematic.caixamanlleu.es/ISMC/*/js/teclat.js*
• https://be.homecem.com/BEWeb/*/login_identificacion*
• https://be.homecem.com/2041/js/comunBEWEB.js*
• https://www.caixaterrassa.es/SESSIONS/SFObe*
• https://enlaza.cajadeburgos.es/BELLogin.jsp*
• https://www.cajalaboral.*/home/acceso.asp
• https://www.cajamar.es*
• https://cajasturdirecto.cajastur.es/BEWeb/2048/*/inicio_identificacion.action*
• https://cajasturdirecto.cajastur.es/*/js/MOD3.js*
• https://cajasturdirecto.cajastur.es/BEWeb/2048/*/portal_inicio_identificacion.action*
• https://empresas.gruposantander.es/WebEmpresas/*
• *iurisbank.com/isum/*login*
• https://www.unicaja.es/*

Stolen Information

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

• http://{BLOCKED}ushi.ru/y93/_gate.php

Other Details

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

• Hooks the following APIs to intercept data that the system sends and receives:
  
  • ntdll.dll:
  • NtCreateThread
  • LdrLoadDll
  • kernel32.dll:
  • GetFileAttributesExW
  • WS2_32.dll:
  • send
  • WSASend
  • closesocket
  • USER32.dll:
  • TranslateMessage
  • GetClipboardData
  • WININET.dll:
  • InternetCloseHandle
  • HttpSendRequestA
  • HttpQueryInfoA
  • InternetReadFile
  • InternetQueryDataAvailable
  • HttpSendRequestExW
  • InternetReadFileExA
  • HttpSendRequestW
  • HttpSendRequestExA
• Intercepts data to and from Mozilla Firefox by hooking the following APIs:
  
  • nspr4.dll:
  • PR_OpenTCPSocket
  • PR_Close
  • PR_Read
  • PR_Write
• Steals private keys from certificates by hooking the following API:
  
  • CRYPT32.dll:
  • PFXImportCertStore
• Take screenshots
• Logs keystrokes

Variant Information

This spyware has the following MD5 hashes:

• a61732d6519a6530691d9fb56912ca57

It has the following SHA1 hashes:

• 4718ad5bbd3d5292bf3039c4955864931e6e48c8