Analysis by: Christopher Daniel So

ALIASES:

Trojan:Win32/EyeStye.N (Microsoft), Trojan.Win32.Buzus.ibzg (Kaspersky)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This spyware may be downloaded from remote sites by other malware.

It also has rootkit capabilities, which enables it to hide its processes and files from the user.

It modifies the Internet Explorer Zone Settings.

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

It deletes the initially executed copy of itself.

  TECHNICAL DETAILS

File Size: 827,392 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 29 Jul 2011

Arrival Details

This spyware may be downloaded from the following remote site(s):

  • http://{BLOCKED}-college.de/Webformulare/documentus.exe

It may be downloaded from remote site(s) by the following malware:

  • TROJ_SPYEYE.WEC

Installation

This spyware drops the following copies of itself into the affected system:

  • %System Root%\Config.Msi\9A0EE2865BC.exe

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

It drops the following files:

  • %System Root%\Config.Msi\CC6BCC177056B0C - encrypted configuration file

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

It creates the following folders:

  • %System Root%\Config.Msi

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

It terminates the execution of the copy it initially executed and executes the copy it drops instead.

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
9U7F2A5A0GVX1VWYRTE = "%System Root%:\Config.Msi\9A0EE2865BC.exe /q"

Other System Modifications

This spyware adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft Windows

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\PhishingFilter
EnabledV8 = 0

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\PhishingFilter
ShownServiceDownBalloon = 0

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Recovery
ClearBrowsingHistoryOnExit = 0

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
ProxyHttp1.1 = 1

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
WarnOnPostRedirect = 0

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
WarnOnIntranet = 0

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
GlobalUserOffline = 0

Rootkit Capabilities

This spyware also has rootkit capabilities, which enables it to hide its processes and files from the user.

Web Browser Home Page and Search Page Modification

This spyware modifies the Internet Explorer Zone Settings.

Information Theft

This spyware targets the following websites:

  • https://*.royalbank.com/cgi-bin/*
  • http://rankgitter24.de/assets/rbc/index.html
  • https://www.accountonline.com/cards/svc/Dashboard.do*
  • https://online.citibank.com/US/*
  • *discovercard.com/cardmembersvcs/strongauth/app/sa_main*
  • *my.ebay.com/ws/eBayISAPI.dll?MyEbay*
  • *oltx.fidelity.com/*/*/ofsummary/summary*
  • https://secure.ingdirect.com/myaccount/INGDirect/*
  • https://accounts.key.com/*
  • *onlinebanking.mandtbank.com/summary/AccountSummary*
  • https://securebank.regions.com/*
  • https://trading.scottrade.com/*
  • https://onlinebanking.tdbank.com/login*
  • *usbank.com/internetBanking/RequestRouter?requestCmdId=G*
  • https://www.vancity.com/*
  • *wachovia.com*
  • https://www.scotiaonline.scotiabank.com/portal/index.jsp?pageID=financial_services_banking*
  • https://accesd.desjardins.com/*Operations/*
  • https://www.txn.banking.pcfinancial.ca/a/banking/*
  • https://www.hsbc.ca/1/2/!ut/p/c1/*
  • http*://*wellsfargo.com/*
  • http*easywebsoc.td.com*
  • http*://*suntrust.com/*
  • http*pnc.com*
  • http*cibconline.cibc.com*
  • http*://*chase.com/*
  • http*capitalone.com*
  • http*bmo.com*
  • http*://*bankofamerica.com/*
  • *online.wellsfargo.com/das/cgi-bin/session.cgi*
  • https://*usbank.com/internetBanking/RequestRouterL
  • https://easyweb*.tdcanadatrust.com/servlet/*FinancialSummaryServlet*
  • *online.wellsfargo.com/das/cgi-bin/session.cgi*
  • *bankofamerica.com/cgi-bin/*GotoWelcomeL
  • *suntrust.com/portal/server.pt?mode=*L
  • *onlinebanking.tdbank.com/accts/getAccts.aspL
  • https://*citibank.com/*BS_Id=MemberHomepage*
  • https://*.wachovia.com/myAccounts.aspx*
  • *www1.royalbank.com/cgi-bin/rbaccess/rbcgi3m01*
  • *cibconline.cibc.com/olbtxn/accounts/*
  • https://chaseonline.chase.com/MyAccounts.aspx
  • https://chaseonline.chase.com/MyAccounts.aspx
  • *bankofamerica.com/cgi-bin/*GotoWelcomeL
  • https://www.moneybookers.com/app/login.pl*
  • *paypal.com* */
  • h*paypal.com/us/cgi-bin/webscr?cmd=_login-done&login_access=*
  • *paypal*
  • *royalbank.com/cgi-bin/rbaccess/rbcgi*L
  • *royalbank.com/wps/myportal/OLB/!ut/*/*/*L
  • http*://*royalbank.com/wps/myportal/OLB/!ut/*/*/*
  • *royalbank.com/cgi-bin/rbaccess/rbcgi*L
  • *royalbank.com/cgi-bin/rbaccess/rbcgi*L
  • *royalbank.com/wps/myportal/OLB/!ut/*L
  • *royalbank.com/wps/myportal/OLB/!ut/*L

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

  • Royal Bank of Canada
  • CitiBank
  • Discover Bank
  • Ebay
  • Fidelity
  • Ing Direct
  • Key Bank
  • M&T Bank
  • Regions
  • Scottrade
  • TD Bank
  • U.S. Bank
  • Vancity
  • Wachovia
  • Scotiabank
  • Desjardins
  • President's Choice Financial
  • HSBC
  • Wells Fargo
  • SunTrust Bank
  • CIBC
  • JPMorgan Chase & Co.
  • Bank of America
  • Moneybookers
  • Paypal

Stolen Information

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

  • http://{BLOCKED}.113.194/test/logout.php
  • http://{BLOCKED}arbuz.net/test/logout.php

Other Details

This spyware deletes the initially executed copy of itself

NOTES:

Injects a remote thread to all running processes except the following:

  • System
  • smss.exe
  • csrss.exe
  • services.exe
  • 9A0EE2865BC.exe

  SOLUTION

Minimum Scan Engine: 8.900
FIRST VSAPI PATTERN FILE: 8.316.15
FIRST VSAPI PATTERN DATE: 29 Jul 2011

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Restart in Safe Mode

[ 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\Internet Explorer\PhishingFilter
    • EnabledV8=0
  • In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PhishingFilter
    • ShownServiceDownBalloon=0
  • In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Recovery
    • ClearBrowsingHistoryOnExit=0
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
    • ProxyHttp1.1=1
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
    • WarnOnPostRedirect=0
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
    • WarnOnIntranet=0
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
    • GlobalUserOffline=0
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • 9U7F2A5A0GVX1VWYRTE="%System Root%\Config.Msi\9A0EE2865BC.exe /q"

Step 4

Delete this registry key

[ 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

Step 5

Reset Internet security settings

[ Learn More ]

Step 6

Search and delete this folder

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result. %System Root%\Config.Msi

Step 7

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

NOTES:

This malware is detected and removed by the latest Trend Micro anti-malware engine and pattern. Always keep pattern files and engines up-to-date.

To know more about updating your Trend Micro product’s pattern, please refer to the Trend Micro support page
Note: The steps apply for specific products indicated in the page.

To actively detect and protect your machine, enable real-time scanning of your Trend Micro anti-malware product. Refer to the following Trend Micro support page to know more about enabling real-time scanning in your Trend Micro product:


Be aware of social engineering attacks.
Avoid accessing the listed malicious URLs to prevent possible re-infection.
Monitor network connections for any suspicious connection or connectivity.
Don’t save login credentials on the local computer.


Did this description help? Tell us how we did.