TSPY_ZBOT.YU

December 06, 2014
 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:

159,232 bytes

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

06 Nov 2010

Arrival Details

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

  • http://{BLOCKED}.{BLOCKED}.153.101/gergibon.exe

Installation

This spyware adds the following folders:

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

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

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 Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Download Routine

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

  • http://{BLOCKED}.{BLOCKED}.38.62/gerginson.bin

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:

  • *.ebay.com/*eBayISAPI.dll?*
  • *//ktt.key.com/ktt/cmd/logonFromKeyCom
  • *//ktt.key.com/ktt/cmd/validatePinForm
  • *//ultrabranch.alaskausa.org/efs/servlet/efs/*password*
  • *//www.svbconnect.com/security/challengeVerify.do
  • */my.ebay.com/*CurrentPage=MyeBayPersonalInfo*
  • *bankofamerica.com*
  • *ingdirect.com*
  • http*.webcashmanager.com*Login*
  • http*.webcashmgmt.com*Login*
  • http*/phcp/econnection/login/js/login.htm*
  • http*/phcp/servlet*Login*
  • http*/wcmfd/*Login*
  • http*/wcmfd/js/LoginCSS.js*
  • http*bolb.associatedbank.com*
  • http*bolb.associatedbank.com/js/jquery.js*
  • http*business-eb.ibanking-services.com*general.js*
  • http*business-eb.ibanking-services.com/K1/*jsp*
  • http*business-eb.ibanking-services.com/K1/*login*jsp*
  • http*ebanking-services.com/*
  • http*ebanking-services.com/AUTH/WebResource.axd*
  • http*sso.uboc.com/js/ub-common.js*
  • http*sso.uboc.com/obc/forms/login.fcc*
  • http*treasury.pncbank.com/portal/esec/login.ht*
  • http*treasury.pncbank.com/portal/service/js/loginproc.js*
  • http*treasurydirect*tdbank.com*
  • http*treasurydirect*tdbank.com*cfm*
  • http*treasurydirect*tdbank.com*login_brandScripts.js*
  • http*www.northerntrust.com/*
  • http*www.northerntrust.com/incs/scripts.js
  • http*www3683.ntrs.com*
  • http://fbtonline.com/home/
  • http://unfcu.org/
  • http://www.jpmorganaccess.com/*
  • http://www.ncsecu.org/*
  • http://www.unfcu.org/
  • https*/pub/html/login.html*
  • https*access.wescorp.org*
  • https*access.wescorp.org/_Auth*
  • https://*.web-access.com*welcome.cgi*
  • https://*.web-cashplus.com/Cashplus/
  • https://*/IBWS/checkUser.do
  • https://*/cmserver*verify.cfm*
  • https://*/onlineserv/CM/*
  • https://*/onlineserv/CM/std/js/en/disofactor.js*
  • https://*Cashman*
  • https://*blilk.com/Core/Authentication/MFA*.aspx
  • https://*blilk.com/Core/Authentication/MFA*.aspx*
  • https://*blilk.com/include/Utils.js
  • https://*blilk.com/include/Utils.js*
  • https://*cashman*
  • https://*cmserver/include/ui/uiScripts.js*
  • https://*login_ui_includes/login_brandScripts.js*
  • https://*treasury.pncbank.com/*/login.ht
  • https://access.jpmorgan.com/appmanager/jpmalogonportal/jpmalogonhome*
  • https://alltimetreasury.pacificcapitalbank.com/TekPortfolio/servlet/TB_UI_Controller*
  • https://authmaster.nationalcity.com/tmgmt/js/bharosa_uio.js*
  • https://authmaster.nationalcity.com/tmgmt/wslogin.jsp*
  • https://banking.calbanktrust.com/iLogin.jsp
  • https://bankoffortbendonline.com/onlineserv/CM*
  • https://bnycash.bankofny.com/
  • https://businessaccess.citibank.citigroup.com/cbusol/do/htmlserver/js/env.js*
  • https://businessaccess.citibank.citigroup.com/cbusol/signon.do*
  • https://businessonline.huntington.com/BOLHome/BusinessOnlineLogin.aspx*
  • https://businessonline.huntington.com/common/scripts/common.js*
  • https://businessonline.tdbank.com/CorporateBankingWeb/Core/Login.aspx*
  • https://businessonline.tdbank.com/CorporateBankingWeb/VAM/2_0_2/VAM.js*
  • https://businessonline.tdbank.com/corporatebankingweb/core/login.aspx*
  • https://cashman.arvest.com/cashman*Auth.asp
  • https://cashmanagement.firstambank.com/iBank/cmserver/loginforwardtourl.cfm
  • https://cashmanagement.firstambank.com/iBank/cmserver/verify.cfm
  • https://cashmgt.firsttennessee.biz/WebID/IISWebAgentIF.dll
  • https://cashmgt.firsttennessee.biz/cb/servlet/cb/login.jsp
  • https://cashmgt.firsttennessee.biz/cb/servlet/cb/login.jsp*
  • https://cbs.firstcitizens.com/cb/jsp-ns/inc/auth/fp.js*
  • https://cbs.firstcitizens.com/cb/servlet/cb/loginfcbnc.jsp*
  • https://chaseonline.chase.com/MyAccounts.aspx
  • https://chsec.wellsfargo.com/login/login.fcc*
  • https://cm.firstbankpr.com/cashplus/
  • https://cm.netteller.com/login*/Authentication/Views/LoginCM.aspx
  • https://cm.netteller.com/login2008/Authentication/Views/Login.aspx*
  • https://cm.netteller.com/login2008/Scripts/NetTellerCorners.js*
  • https://commerceconnections.commercebank.com/ibank/cmserver/welcome/default/verify.cfm
  • https://commercial.wachovia.com/Online/Financial/Business/Service*
  • https://commercial.wachovia.com/Online/Financial/Business/Service?action=Login*
  • https://commercial.wachovia.com/Online/Registration/jsinclude/bidata.js
  • https://ctreporter.coletaylor.com/bbw/cmserver/welcome/default/verify.cfm
  • https://direct.53.com/logon53Direct.jsp*
  • https://direct.bankofamerica.com/BofaDirect/javascript/js.util.uiutils.js*
  • https://direct.bankofamerica.com/Core/servlet/BofaDirect.BankofAmericaDirect.BankofAmericaDirectServlet?page=PgLogin*
  • https://e-access.compassbank.com/bbw/cmserver/welcome/default/verify.cfm
  • https://ecash.*
  • https://ecash.dacotahbank.com/cashman//Auth.asp
  • https://ecash.dacotahbank.com/cashman/default.Aspx
  • https://ecash.dacotahbank.com/out.html
  • https://ecash.fsbnm.com/cashman//Auth.asp
  • https://ecash.fsbnm.com/cashman/Default.aspx
  • https://ecash.fsbnm.com/out.html
  • https://express.53.com/express/logon.action*
  • https://express.53.com/express/logon.action1
  • https://express.53.com/express/rsa/RSAScript.js*
  • https://goldleafach.com/ach/Login.aspx*
  • https://ibank.scnb.com/inets/Login.cfm
  • https://infoplus.mandtbank.com/cashplus/
  • https://internetbanking.firsttennessee.biz/*
  • https://internetbanking.firsttennessee.biz/webcm/customer1.asp*
  • https://itreasury.regions.com/phcp/servlet/CustomerLoginServlet
  • https://ktt.key.com/ktt/cmd/logon
  • https://myib.firstmerchants.com/fi3039a_auth/sbuser/slogon
  • https://netconnect.bokf.com/bbw/cmserver/welcome/default/verify.cfm
  • https://olb.gnty.com/Login/Username.aspx*
  • https://online.citibank.com/*
  • https://online.wamu.com/Servicing/Servicing.aspx?targetPage=AccountSummary
  • https://online.wellsfargo.com/das/cgi-bin/session.cgi*
  • https://onlineaccess.ncsecu.org/login.aspx
  • https://onlinebanking.nationalcity.com/OLB/secure/AccountList.aspx
  • https://onlinetreasurymanager.suntrust.com/ibswebsuntrust/cmserver/welcome/default/verify.cfm
  • https://passport.texascapitalbank.com/BankNow.aspx*
  • https://passport.texascapitalbank.com/CustomError.aspx
  • https://passport.texascapitalbank.com/Default.aspx
  • https://pccm.peoples.com/webcm/*
  • https://premierview.membersunited.org/Core/login.aspx*
  • https://premierview.membersunited.org/WebResource.axd*
  • https://secure.fundsxpress.com/piles/fxweb.pile/custom_login?template=login&no_top_url=1&iid=ABMWI
  • https://secure.ingdirect.com/myaccount/INGDirect.html
  • https://secure.ingdirect.com/myaccount/InitialINGDirect.html*
  • https://securentrycorp.*/Authentication/lib.js*
  • https://securentrycorp.*/Authentication/zbf/k/*
  • https://securentrycorp.amegybank.com/Authentication/zbf/index?appId=PORTAL&domainId=abt
  • https://securentrycorp.amegybank.com/Authentication/zbf/k/*
  • https://securentrycorp.amegybank.com/Enrollment/zbf/k/1
  • https://securentrycorp.calbanktrust.com/Authentication/zbf/index?appId=PORTAL&domainId=cbt
  • https://securentrycorp.calbanktrust.com/Authentication/zbf/k/*
  • https://securentrycorp.calbanktrust.com/Enrollment/zbf/k/1
  • https://securentrycorp.nbarizona.com/Authentication/zbf/index?appId=PORTAL&domainId=nba
  • https://securentrycorp.nbarizona.com/Authentication/zbf/k/*
  • https://securentrycorp.nbarizona.com/Enrollment/zbf/k/1
  • https://securentrycorp.zionsbank.com/Authentication/zbf/index?appId=PORTAL&domainId=zfnb
  • https://securentrycorp.zionsbank.com/Authentication/zbf/k/*
  • https://securentrycorp.zionsbank.com/Enrollment/zbf/k/1
  • https://singlepoint.usbank.com/*
  • https://singlepoint.usbank.com/cs70_banking/logon/sbuser*
  • https://singlepoint.usbank.com/cs70_banking/user/script/login.js*
  • https://trading.scottrade.com/home/default.aspx
  • https://treas-mgt.frostbank.com/rdp/cgi-bin/*
  • https://treas-mgt.frostbank.com/rdp/cgi-bin/welcome.cgi*
  • https://treasury.wamu.com/bbw/cmserver/include/challenge100.cfm
  • https://treasury.wamu.com/ibswamu/cmserver/login_validate.cfm*
  • https://treasury.wamu.com/ibswamu/cmserver/welcome/default/verify.cfm
  • https://usgateway1.rbs.com/usgateway/cb/gpsmoneymanager.jsp
  • https://usgateway2.rbs.com/usgateway/cb/gpsmoneymanager.jsp
  • https://web.da-us.citibank.com/*BS_Id=MemberHomepage*
  • https://webexpress.tdbanknorth.com/wcmfd/wcmpw/CustomerLogin
  • https://wellsoffice.wellsfargo.com/ceoportal/signon/index.jsp*
  • https://www#.citizensbankonline.com/*/index-wait.jsp
  • https://www#.usbank.com/internetBanking/LoginRouter
  • https://www.53.com/servlet/efsonline/index.html*
  • https://www.53.com/wps/portal/*
  • https://www.53.com/wps/portal/cblogin
  • https://www.53.com/wps/portal/cblogin*
  • https://www.bankoffortbendonline.com/onlineserv/CM*
  • https://www.bbvacompass.com/contact/
  • https://www.businesse-cashmanager.web-access.com/natpenn/cgi-bin/welcome.cgi
  • https://www.businessonline.blilk.com/Core/Authentication/MFA*.aspx
  • https://www.businessonline.blilk.com/include/Utils.js
  • https://www.businessonlineaccess.web-cashplus.com/Cashplus/1
  • https://www.cashanalyzer.com/cgi-bin/carsa#clnt.dll/CA%20-%20Main1/ND000_
  • https://www.cbolobank.com/business/j_security_check
  • https://www.cbolobank.com/business/login/Login.jsp
  • https://www.columbiabankonline.com/onlineserv/CM/
  • https://www.columbiabankonline.com/onlineserv/CM/index.cgi
  • https://www.commercial.hsbc.com.hk/1/2/!ut/p/kcxml/*
  • https://www.commercial.hsbc.com.hk/1/themes/html/b2gjs/WT_top_section.js*
  • https://www.corporatebanking.firsttennessee.com/cb/servlet/cb/jsp-ns/login.jsp*
  • https://www.directline4biz.com/bbw/cmserver/login_validate.cfm*
  • https://www.directline4biz.com/challenge100.cfm
  • https://www.easterntreasuryconnect.com/bbw/cmserver/appserver_login_validate.cfm
  • https://www.easterntreasuryconnect.com/bbw/cmserver/welcome/default/verify.cfm
  • https://www.eastwestbankhb.com/onlineserv/CM/*
  • https://www.ffsbkyonline.com/*
  • https://www.frostbank.com/sitemap/Pages/default.aspx
  • https://www.independentcm.com/onlineserv/CM/
  • https://www.manufacturers.web-access.com/wa/cgi-bin/welcome.cgi
  • https://www.mybusinessbank.co.uk/cs70_banking/logon/slogon
  • https://www.nashvillecitizensbank.com/olbb/Login2FA.asp
  • https://www.nationalcity.com/consultnc/
  • https://www.nationalcity.com/consultnc/*
  • https://www.nationalcity.com/sharedApp/js/isEmpty.js*
  • https://www.paypal.com/*/webscr?cmd=_account
  • https://www.paypal.com/*/webscr?cmd=_login-done*
  • https://www.pnc.com/webapp/sec/Forms.do?siteArea=/PNC/Feedback+Form
  • https://www.securechemicalbankmi.com/onlineserv/CM/
  • https://www.signatureny.web-access.com/signat/cgi-bin/*
  • https://www.signatureny.web-access.com/signat/cgi-bin/welcome.cgi
  • https://www.sterlingcorporatenetbanking.com/bbw/cmserver/login_validate.cfm*
  • https://www.sterlingwires.com/
  • https://www.sterlingwires.com/js/IWPreScript.js_9.0.42*
  • https://www.suntrust.com/portal/server.pt*parentname=Login*
  • https://www.svbconnect.com/*
  • https://www.svbconnect.com/security/integratedLoginAuth.do
  • https://www.svbconnect.com/useraccess/Login.jsp
  • https://www.ulsterbankanytimebanking.ie/login.aspx*
  • https://www.us.hsbc.com/*
  • https://www.us.hsbc.com/*business.online*
  • https://www.us.hsbc.com/1/2/3/business/online/business-internet-banking/log-on*
  • https://www.us.hsbc.com/1/themes/html/hbus_common/HSBC-top_section.js*
  • https://www.whitneybank.web-access.com/whitney/cgi-bin/welcome.cgi
  • https://www2.alerusfinancial.com/cashman//Auth.asp
  • https://www2.alerusfinancial.com/cashman/default.Aspx
  • https://www2.alerusfinancial.com/out.html
  • https://www3683.ntrs.com/ptl/ptl/javascript/NavigationMenuScripts.js*
  • https://www8.comerica.com/*
  • https://www8.comerica.com/images/sdc.js

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

  • AlaskaUSA
  • Alerus Financial
  • Alliance & Leicester
  • Amegy Bank
  • Arvest
  • Associated Bank
  • BBVA
  • Bank of America
  • Bank of FortBend
  • Bank of New York
  • CASHplus
  • CCM
  • California Bank & Trust
  • CashAnalyzer
  • Central Bank of Lake of the Ozarks
  • Chase
  • Chemical Bank
  • Citibank
  • Citizens
  • Citizens Bank
  • Cole Taylor Bank
  • Columbia Bank Online
  • Comerica
  • Commerce Bank
  • Compass Bank
  • Dacotah Bank
  • East West Bank
  • Eastern Treasury Connect
  • Ebay
  • Fifth Third
  • First American Bank
  • First Bank
  • First Bank and Trust
  • First Citizens Bank
  • First Federal Savings Bank
  • First Merchants Bank
  • First State Bank NM
  • First Tennessee
  • Frost Bank
  • FundsXpress
  • Goldleaf ACH
  • Guaranty Bond Bank
  • HSBC
  • Huntington
  • ING Direct
  • JP Morgan
  • Key Total Treasury
  • M&T Bank
  • Money Manager
  • National Bank of Arizona
  • National City
  • NetConnect
  • NetTeller
  • Northern Trust
  • PNC
  • Pacific Capital Bank
  • PayPal
  • Premier View
  • Scottrade
  • Silicon Valley Bank
  • State Employees' Credit Union
  • Sterling
  • Suffolk County National Bank
  • Suntrust
  • TD Bank
  • Texas Capital Bank
  • US Bank
  • Ulster Bank
  • Union Bank of California
  • United Nations Federal Credit Union
  • Wachovia
  • Washington Mutual
  • Wells Fargo
  • WesCorp
  • Whitney Bank
  • Zions Bank
  • iTreasury

Stolen Information

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

  • http://{BLOCKED}.{BLOCKED}.38.63/gergmaker.php

Variant Information

This spyware has the following MD5 hashes:

  • 838cbf5fe4ecb71c0d90ad5e2ed0b007

It has the following SHA1 hashes:

  • 5d61abaeb22e53fbdb1586d9604cf58fe9ed79f0

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.598.09

FIRST VSAPI PATTERN DATE:

06 Nov 2010

VSAPI OPR PATTERN File:

7.599.00

VSAPI OPR PATTERN Date:

06 Nov 2010

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.YU 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

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_ZBOT.YU. 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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