TSPY_ZBOT.EKB

This spyware is injected into all running processes to remain memory resident.

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

Infection Points

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

• http://{BLOCKED}vanced-cfg1.com/monte-karlo/us.exe

Installation

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:\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%\{random1}
• %Application Data%\{random2}

(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 is injected into all running processes to remain memory resident.

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}

Information Theft

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

• http://{BLOCKED}vanced-cfg2.com/monte-karlo/usdase.db

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:

• *.citibank.com/US/JPS/portal/Index.do*
• *.citibank.com/US/JRS/portal/accountSummary.do
• *login.yahoo.com*
• *online.wellsfargo.com/das/cgi-bin/session.cgi*
• *online.wellsfargo.com/login*
• *wellsfargo.com/
• *www.bankofamerica.com*
• *www.bankofamerica.com/*
• htt*://www.citi*com/*
• http*chase.com/
• http://www.facebook.com/index.ph*
• https://*.bankofamerica.com/cgi-bin/ias/*
• https://*.chase.com/MyAccounts.aspx*
• https://*chase.com/*
• https://banking.chase.com/.*
• https://banking.chase.com/AccountActivity/AccountDetails.aspx?AI=*
• https://businessonline.tdbank.com/CorporateBankingWeb/Core/CustomerService/CustomerService.aspx
• https://businessonline.tdbank.com/CorporateBankingWeb/Core/CustomerService/ModifySecurityQuestions.aspx
• https://businessonline.tdbank.com/CorporateBankingWeb/Core/InformationReporting/AccountPortfolio.aspx
• https://chaseonline.chase.com/MyAccounts.aspx
• https://chaseonline.chase.com/images//ChaseNew.gif
• https://chaseonline.chase.com/images/bolprogress.gif
• https://chaseonline.chase.com/secure/serviceactivation/*
• https://gbsrv.com/ch/icq.php?
• https://online.citibank.com/US/*/portal/menu.do*
• https://online.wamu.com/Servicing/Servicing.aspx?*
• https://online.wellsfargo.com/das/cgi-bin/session.cgi*
• https://onlineeast#.bankofamerica.com/cgi-bin/ias/*/CustomerServiceMenuEntryPoint?custAction=75
• https://onlineeast#.bankofamerica.com/cgi-bin/ias/*/GotoCustomerServiceMenu
• https://onlineeast#.bankofamerica.com/cgi-bin/ias/*/GotoWelcome
• https://onlineeast1.bankofamerica.com/cmsContent/en_US/TransferFunds/Model/WhyDoWeAskForThisInfoPopUp.html
• https://payments.chase.com/Wire/wireaddconfirm.aspx
• https://payments.chase.com/Wire/wireaddform2.asp*
• https://payments.chase.com/Wire/wireaddverify.aspx
• https://payments.chase.com/Wire/wirerecipientaddconfirm.aspx
• https://payments.chase.com/Wire/wirerecipientaddform2.aspx
• https://payments.chase.com/Wire/wirerecipientaddroutingnumber.aspx
• https://payments.chase.com/Wire/wirerecipientaddverify.aspx
• https://sitekey.bankofamerica.com/sas-docs/images/clr.gif
• https://sitekey.bankofamerica.com/sas/challengeQandA.do
• https://sitekey.bankofamerica.com/sas/maint.do
• https://sitekey.bankofamerica.com/sas/maint.do';
• https://sitekey.bankofamerica.com/sas/sas-docs/js/commonscript.js
• https://sitekey.bankofamerica.com/sas/signonSetup.do
• https://stmts.chase.com/StmtList.aspx?*
• https://www.ibsnetaccess.com/NASApp/NetAccess/LoginValidation

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

• Bank of America
• Chase
• CitiBank
• FIA Card Services
• Facebook
• TD Bank
• Washington Mutual
• Wells Fargo
• Yahoo!

Stolen Information

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

• http://{BLOCKED}.{BLOCKED}.197.24/~hosting/woops/ttf.php

Other Details

This spyware does the following:

• It inserts JavaScript (JS) code in the Web pages to retrieve user names, passwords, and security codes used in a two-factor authentication in order to transact from within the website.

Variant Information

This spyware has the following MD5 hashes:

• 04966c92954176339d796ebac55bfaeb

It has the following SHA1 hashes:

• 3f2f1e81ec0a655ca125f64f02cfaf5360c43695