Your Internet Explorer home page is reset to "about:blank" and Windows AntiSpyware (Beta) unexpectedly quits in Windows 2000, Windows XP, or Windows Server 2003 (894269)


The information in this article applies to:

  • Microsoft Windows Server 2003, Datacenter Edition
  • Microsoft Windows Server 2003, Enterprise Edition
  • Microsoft Windows Server 2003, Standard Edition
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional 64-Bit Edition (Itanium)
  • Microsoft Windows XP Tablet PC Edition
  • Microsoft Windows XP Tablet PC Edition 2005
  • Microsoft Windows XP Media Center Edition
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Advanced Server

Beta Information

This article discusses a Beta release of a Microsoft product. The information in this article is provided as-is and is subject to change without notice.

No formal product support is available from Microsoft for this Beta product. For information about how to obtain support for a Beta release, see the documentation that is included with the Beta product files, or check the Web location where you downloaded the release.

SYMPTOMS

On a computer that is running Microsoft Windows 2000, Microsoft Windows XP, or Microsoft Windows Server 2003, you may experience the following symptoms:
  1. The home page in Internet Explorer is reset to "about:blank."
  2. Microsoft Windows AntiSpyware (Beta) unexpectedly quits.

CAUSE

This problem may occur because your computer is infected by the TrojanSpy:Win32/Banker Trojan horse program.

WORKAROUND

Most antivirus software can detect and prevent infection by malicious software. To work around this problem, run antivirus software that is updated with the latest signature files. Then, reinstall Microsoft Windows AntiSpyware (Beta).

MORE INFORMATION

When this problem occurs, TrojanSpy:Win32/Banker takes the following actions:
  • TrojanSpy:Win32/Banker sets the Internet Explorer home page to "about:blank."
  • TrojanSpy:Win32/Banker deletes all the files in the C:\Program Files\Microsoft AntiSpyware folder.
  • TrojanSpy:Win32/Banker looks for Windows relating to Microsoft Windows AntiSpyware (Beta) and sends messages to these windows to close them.
  • TrojanSpy:Win32/Banker shuts down processes that are associated with Microsoft Windows AntiSpyware (Beta).
  • TrojanSpy:Win32/Banker tries to download and then run updates from a Web server.
  • TrojanSpy:Win32/Banker tries to download and then run additional software from an FTP server.
  • TrojanSpy:Win32/Banker prevents the user from accessing certain security websites.
  • TrojanSpy:Win32/Banker removes the gcasServ registry entry from the following subkey:

    HKLM\Software\Microsoft\Windows\CurrentVersion\Run

  • TrojanSpy:Win32/Banker collects personal user information when a user visits online banking sites.

    These sites include the following:
    • ibank.barclays.co.uk
    • ibank.cahoot.com
    • myonlineaccounts2.abbeynational.co.uk
    • olb.westpac.com.au
    • olb2.nationet.com
    • online.lloydstsb.co.uk
    • sec.westpactrust.co.nz
    • web.da-us.citibank.com
    • www.bpinet.pt
    • www.ebank.hsbc.co.uk
    • www.ebank.hsbc.com.hk
    • www.halifax-online.co.uk
    • www.iblogin.com
    • www.national.com.au
    • www.nwolb.com
    • www.rbsdigital.com
    TrojanSpy:Win32/Banker then tries to send this infromation to an FTP server.
  • TrojanSpy:Win32/Banker logs URLs that you visit to the %windir%\Req.log file. However, URLs that contain the following strings are not logged:
    • https
    • safeform.com
    • northeast.on.ca
    • salesforce.com
    • prudential.com.hk
    • sammikk.com
    • samsunggsbn.com
    • sbc.com
    • s-central.com.au
    • ebay
    • sciamdigital.com
    • scicollege.org.sg
    • upjs.sk
    • eutelsat.net
    • searchfit.org
    • seatbooker.net
    • sebra.com
    • yimg.com
    • acadiau.ca
    • adultfriendfinder.com
    • advisor.com
    • authorize.net
    • bearshare.com
    • betbanking.com
    • bnpparibas.net
    • c1hrapps.com
    • customersvc.com
    • konetic.org
    • delias.com
    • deluxepass.com
    • directnic.com
    • directsex.com
    • earthport.com
    • elance.com
    • element5.com
    • elsevier
    • emetrix.com
    • e-registernow.com
    • europeonline.com
    • ezpeer.com
    • fredericks.com
    • gevalia.com
    • hilton.com
    • hostdozy.com
    • hotbar.com
    • idx.com .au
    • indigosp.com
    • infusion-studios.com
    • intuitcanada.com
    • reuters.com
    • kent.net lkw-walter.com
    • medibank.com.au
    • mouse2mobile.com
    • mysylvan.com
    • nacelink.com
    • netbilling.com
    • netfirms.com
    • netspeed.com.au
    • nike.com.hk
    • novuslink.net
    • nzqa.govt.nz
    • oberon-media.com
    • onlineaccess.net
    • optusnet.com.au
    • orcon.net
    • ordering.co.uk
    • oztralia.com
    • register.com
    • safesite.com
    • shaw.ca
    • billerweb.com
    • sms.ac
    • sparkart.com
    • sparknotes.com
    • starbiz.net.sg
    • telusmobility.com
    • thewheelconnection.com
    • tickle.com
    • trekblue.com
    • tsn.cc
    • ubi.com
    • vandyke.com
    • w2express.com
    • mgm-mirage.com
    • webeweb.net
    • wn.com.au
    • securecart.net
    • secureordering.com
    • secureserver.net
    • imrworldwide.com
    • playstation.com
    • western-inventory.com
    • securewebexchange.com
    • securitymetrics.com
    • selfmgmt.com
    • t-mobile.co.uk
    • xtra.co.nz
    • canon-europe.com
    • senecac.on.ca
    • sephora.com
    • liveperson.net
    • ariba.com
    • sympatico.ca
    • xs4all.nl
    • macau.ctm.net
    • rogers.com
    • sfgov.org
    • cic.gc.ca
    • vodafone.co.uk
    • hku.hk
    • sfa.prudential.com.sg
    • shkcorpws5.shkp.com
    • ecompanystore.com
    • o2online.de
    • shopadmin.daum.net
    • shoppersoptimum.ca
    • go-fia.com
    • zoovy.com
    • shopundco.com
    • shutterfly.com
    • signup.sprint.ca
    • silicon-power.com
    • singnet.com.sg
    • simplyhotels.com
    • sims.sfu.ca
    • singaporeair.com
    • site-secure.com
    • esdlife.com
    • flextronics.com
    • cometsystems.com
    • snapfish.com
    • solo3.nordea.fi soccer.com
    • hkuspace.org
    • soundclick.com
    • swamp.lan spiritair.com
    • sportingbet.com
    • sportodds.com
    • worldgaming.net adaptec.com
    • sqnet.com.sg srp.org.sg
    • ains.com.au
    • campoints.net
    • ingrammicro.com
    • kundenserver.de
    • speedera.net
    • farlep.net
    • lanck.net .sok
    • monster.com
    • ihost.com
    • gigaisp.net
    • webtrendslive.com
    • a-net.com
    • puma.com
    • apple.com
    • streamload.com
    • maximonline.com
    • look.ca
    • supergo.com
    • cablebg.net
    • dell
    • sony
    • inlandrevenue.gov.uk
    • tbihosting.com
    • quickbooks.com
    • techdata.com
    • telpacific.com.au
    • telstra.com
    • freedom.net
    • recruitsoft.com
    • tepore.com
    • theaa.com
    • three.com.hk
    • ticketmaster.com
    • ultrastar.com
    • ti.com
    • tirerack.com
    • tm.net.my
    • tmi-wwa.com
    • tdcwww.net
    • stanfordalumni.org
    • 012.net
    • starhubshop.com.sg
    • datasvit.net
    • ssdcl.com.sg
    • music
    • iinet.net.au
    • iprimus.com.au
    • hp.com
    • game
    • towerhobbies.com
    • travel.com.au
    • travel.priceline.com
    • travelclub.swiss.com
    • travelcommunications.co.uk
    • trivita.com
    • trust1.com
    • trustinternational.com
    • yorku.ca
    • preschoicefinancial.com
    • united.intranet.ual.com
    • unixcore.com
    • uwindsor.ca
    • ucas.co.uk
    • ups.com
    • yesasia.com
    • usafis.org
    • uscden.net
    • uscitizenship.info
    • va-bank.com
    • vasa.slsp.sk
    • veloz.com
    • victoriassecret.com
    • videotron.com
    • mcafee.com
    • virginblue.com.au
    • virginmobileusa.com
    • vodafone vpost.com.sg
    • vutbr.cz
    • opusit.com.sg
    • ibm.com
    • aircanada.ca
    • walgreens.com
    • watchguard.com
    • icq.com
    • ych.com
    • uottawa.ca
    • uoguelph.ca
    • there.com
    • webassign.net
    • comcast.net
    • douglas.bc.ca
    • carleton.ca
    • mcgill.ca
    • mcmaster.ca
    • queensu.ca
    • sheridanc.on.ca
    • ubc.ca
    • unb.ca
    • .ac.at
    • .ac.nz
    • .ust.hk
    • microsoft.com
    • guidehome.com
    • sap-ag.de
    • nwa.com
    • webzdarma.cz
    • intel.com
    • bigpond.net.au
    • willhill.com
    • .ac.uk
    • t-mobile.com
    • uwaterloo.ca
    • delawarenorth.com
    • worldwinner.com
    • worth1000.com
    • wrem.sis.yorku.ca
    • sierraclub.org
    • serviticket.com
    • yagma.com
    • yes.com.hk .edu
    • yourastrologysite.com
    • ytv.com .o2.co.uk
    • zwallet.com
TrojanSpy:Win32/Banker is installed in Internet Explorer as a Browser Helper Object.

To automatically help protect your computer from infection, always run antivirus software that uses the latest signature files. To help make sure your computer is protected against present and future threats, visit the following Microsoft Web site:

http://www.microsoft.com/athome/security/protect/default.mspx

Modification Type:MajorLast Reviewed:2/25/2005
Keywords:kbvirus kbtshoot kbBug kbfix KB894269 kbAudEndUser kbAudGeneralUser
©2004 Microsoft Corporation. All rights reserved.