TROJ_FAKEAV.MCS

This Trojan attempts to steal sensitive online banking information, such as user names and passwords. This routine risks the exposure of the user's account information, which may then lead to the unauthorized use of the stolen data. It attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites.

Infection Points

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

• http://{BLOCKED}3.com/setup/aaa.exe

Installation

This Trojan drops the following files:

• %Application Data%\{random1}\{random}.exe
• %Application Data%\{random2}\{random}.ogw

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

It creates the following folders with attributes set to System and Hidden to prevent users from discovering and removing its components:

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

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)

It injects itself into the following processes as part of its memory residency routine:

• explorer.exe

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{A8BF7768-9BAA-56F7-E514-1A3599AB6CFB} = %Application Data%\{random1}\{random}.exe

Information Theft

This Trojan attempts to steal sensitive online banking information, such as user names and passwords. This routine risks the exposure of the user's account information, which may then lead to the unauthorized use of the stolen data.

It accesses the following site to download its configuration file:

• http://{BLOCKED}3.com/setup/aaa.bin

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:

• !*.microsoft.com/*
• !http://*myspace.com*
• !http://*odnoklassniki.ru/*
• !http://vkontakte.ru/*
• *ebankas.seb*
• *ib.swedbank.lt*
• @*/atl.osmp.ru/*
• @*/login.osmp.ru/*
• https://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js
• https://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/jquery-ui.min.js
• https://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/themes/smoothness/ui.all.css
• https://ajax.googleapis.com/ajax/libs/yui/2.8.1/build/animation/animation-min.js
• https://ajax.googleapis.com/ajax/libs/yui/2.8.1/build/container/assets/skins/sam/container.css
• https://ajax.googleapis.com/ajax/libs/yui/2.8.1/build/container/container-min.js
• https://ajax.googleapis.com/ajax/libs/yui/2.8.1/build/cookie/cookie-min.js
• https://ajax.googleapis.com/ajax/libs/yui/2.8.1/build/dragdrop/dragdrop-min.js
• https://ajax.googleapis.com/ajax/libs/yui/2.8.1/build/selector/selector-min.js
• https://ajax.googleapis.com/ajax/libs/yui/2.8.1/build/yahoo-dom-event/yahoo-dom-event.js
• https://banking.sparda.de/portalstatic/spc/pix/table_thead_th.gif
• https://banking.sparda.de/wps/myportal/*
• https://banking.sparda.de/wps/sparda-classic-banking.jsp?blz=*
• https://ebankas.danskebankas.lt/ib/site/login
• https://ebankas.danskebankas.lt/ib/style/danske/images/danskebankas.gif
• https://ebankas.seb.lt/unet3/img/images/logoh.gif
• https://ib.snoras.com*ib044*
• https://ib.snoras.com/ib01/ibserver/custom/images/internet-logo-lt.gif
• https://ib.swedbank.lt*
• https://ib.swedbank.lt/private/home/important/start/start
• https://ib.swedbank.lt/private;jsessionid*
• https://ib.swedbank.lt/stylebook/biglogo_EE.png
• https://ib.swedbank.lt/stylebook/login_sisse_LIT.gif
• https://www.gruposantander.es/*

Note that the contents of the file, hence the list of websites to monitor, may change any time.

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

• Danske
• ForeningsSparbanken
• Microsoft
• Myspace
• OSPM
• Odnoklassniki
• SEB
• Santander
• Vkontakte

Stolen Information

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

• http://{BLOCKED}6.com/7gulaD/3as.php

Other Details

This Trojan did not exhibit backdoor routines during testing.

Variant Information

This Trojan has the following MD5 hashes:

• c44e5004816f80cee5e6e71bac7c63b6

It has the following SHA1 hashes:

• a7ca5e713c635e4dff4998d43d4d61c3c4891449