TSPY_ZBOT.SMCM

 Analysis by: Karl Dominguez

 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 arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It may be downloaded by other malware/grayware/spyware from remote sites. It may be unknowingly downloaded by a user while visiting malicious websites.

It may be injected into processes running in memory.

  TECHNICAL DETAILS

File Size:

172,032 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

26 Apr 2011

Arrival Details

This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It may be downloaded by other malware/grayware/spyware from remote sites.

It may be unknowingly downloaded by a user while visiting malicious websites.

It may be downloaded from the following remote sites:

  • http://{BLOCKED}mp.ru/china2030.exe

Installation

This spyware drops the following files:

  • %Application Data%\{random2}\{random}.{random} - contains encrypted stolen data

(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 drops the following copies of itself into the affected system:

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

(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 may be injected into processes running in memory.

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
{GUID of mount point of %Windows%} = "%Application Data%\{random1}\{malware filename}.exe"

Other System Modifications

This spyware adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
{random}

It creates the following registry entry(ies) to bypass Windows Firewall:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
%Windows%\explorer.exe = "%Windows%\explorer.exe:*:Enabled:Windows Explorer"

Information Theft

This spyware monitors the Internet Explorer (IE) activities of the affected system, specifically the address bar or title bar. It recreates a legitimate website with a spoofed login page if a user visits banking sites with the following strings in the address bar or title bar:

  • https://*/todo/ping.php*
  • @*//www.svbconnect.com/security/challengeVerify.do
  • @*//ultrabranch.alaskausa.org/efs/servlet/efs/*password*
  • @*//ktt.key.com/ktt/cmd/validatePinForm
  • @*//ktt.key.com/ktt/cmd/logonFromKeyCom
  • @*ingdirect.com*
  • https://www.rbworld.lv/bankworld/*/LoginBrowser/login*
  • https://*sampopank.ee/ibank/login/login*
  • https://www.ab.lv/*
  • https://ebank.laiki.com/commonui/ebankcommonui/logonto.aspx
  • https://newdb.bankofcyprus.com/netteller/Login*
  • https://s2b.standardchartered.com/ssoapp/login.jsp*
  • https://www.securecy.hellenicnetbanking.com/personal*/realindexpage.html
  • http*://*/onlineserv/CM/*
  • https://*.ebanking-services.com*SignIn.aspx*
  • https://login.commbiz.commbank.com.au/*
  • https://*.*.commbank.com.au/netbank/*
  • http*.webcashmgmt.com*Login*
  • http*.webcashmanager.com*Login*
  • http*/phcp/servlet*Login*
  • http*/wcmfd/*Login*
  • http*/phcp/econnection/login/js/login.htm*
  • http*/wcmfd/js/LoginCSS.js*
  • https://bolb-east.associatedbank.com/*
  • https://bolb-east.associatedbank.com/ui/base/js/jquery.js*
  • https*/pub/html/login.html*
  • https://*/cmserver*verify.cfm*
  • https://*/cmserver*verify.cfm*
  • https://*cmserver/include/ui/uiScripts.js*
  • https://*login_ui_includes/login_brandScripts.js*
  • https://*.web-access.com*welcome.cgi*
  • https://ecash.*
  • https://*Cashman*
  • https://*cashman*
  • https://www.commercial.hsbc.com.hk/1/2/!ut/p/kcxml/*

It accesses the following site to download its configuration file:

  • http://{BLOCKED}e.ru/syria2020.bin
  • http://{BLOCKED}ear.ru/fubakun.bin
  • http://{BLOCKED}age.ru/mindozaq.bin
  • http://{BLOCKED}luff.ru/quiteynos.bin
  • http://www.{BLOCKED}pt2.ru/stoqibar.bin
  • http://www.{BLOCKED}tomexixo.ru/ponchiret.bin

Stolen Information

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

  • http://{BLOCKED}nake.ru/florida56.php

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

8.118.12

FIRST VSAPI PATTERN DATE:

26 Apr 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

Scan your computer with your Trend Micro product and note files detected as TSPY_ZBOT.SMCM

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

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
    • {GUID of mount point of %Windows%} = "%Application Data%\{random1}\{malware filename}.exe"
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List
    • %Windows%\explorer.exe = "%Windows%\explorer.exe:*:Enabled:Windows Explorer"

Step 5

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
    • {random}

Step 6

Search and delete these folders

[ 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. %Application Data%\{random1}

Step 7

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