TSPY_ZBOT.SMS

This spyware 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.

It attempts to get information from a list of banks or financial institutions.

It checks for the presence of the following processes which are related to Outpost Personal Firewall and ZoneLabs Firewall Client:

• outpost.exe
• zlclient.exe

It terminates if either of the said processes exist. This is to ensure that it runs uninterrupted. It also has rootkit capabilities, which enables it to hide its processes and files from the user.

Arrival Details

This spyware may be downloaded from the following remote sites:

• http://{BLOCKED}-info.com/zeus/zeus.exe

Installation

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

• %System%\twex.exe

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

It drops the following non-malicious files:

• %System%\twain32\local.ds - copy of the encrypted downloaded file
• %System%\twain32\user.ds - used to save the gathered information

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

It creates the following folders:

• %System%\twain32

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

It adds the following mutexes to ensure that only one of its copies runs at any one time:

• __SYSTEM__64AD0625__

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

• SVCHOST.EXE
• WINLOGON.EXE

Autostart Technique

This spyware modifies the following registry entry(ies) to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
Userinit = "%System%\userinit.exe, %System%\twex.exe,"

(Note: The default value data of the said registry entry is "%System%\userinit.exe,".)

Other System Modifications

This spyware adds the following registry entries as part of its installation routine:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Network
UID = "{Computer name}_{Random numbers}"

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

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
EnableFirewall = 0

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://banking.*.de/cgi/ueberweisung.cgi/*
• https://internetbanking.gad.de/banking/*
• https://www.citibank.de/*/jba/mp#/SubmitRecap.do
• https://www.vr-networld-ebanking.de/ebanking*Action=*
• https://finanzportal.fiducia.de/ebanking*Action=*
• https://finanzportal.fiducia.de/ebbg2/portal?token=*
• https://onlinebanking.norisbank.de/norisbank/*.do?method=*
• https://www.dresdner-privat.de/servlet/*
• https://brokerage.comdirect.de/servlet/*TAN*
• https://www.telebank.ru/web/front/login.x/*TAN*
• https://i.bank24.ru/confirm/payment.*TAN*
• https://www.ipko.pl/ikd*
• http://feedback.ebay.com/ws/eBayISAPI.dll?ViewFeedback&*
• https://onlinebanking.norisbank.de/norisbank/login.do?method=login*
• http://www.caixatarragona.es/esp/sec_20/codigos.html
• https://www.in-biz.it*
• https://www.gbw2.it/cbl/jspPages/form_login_AV.jsp*
• https://www.nwolb.com/help.aspI
• https://online.wellsfargo.com/signon
• https://passport.yandex.ru/passport?mode=remember&idkey=0Es1228829227mDuyYAXJl
• http://help.yandex.ru/passport/?id=990390
• https://img.yandex.net/i/setup/i-help.gif
• http://feedback.ebay.com/ws/eBayISAPI.dll?ViewFeedback&*
• https://onlinebanking.norisbank.de/norisbank/login.do?method=login*

It 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}-info.com/zeus/cfg.bin

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

• Caixa Tarragona
• Citibank
• Comdirect
• Dresdner
• Ebay
• Fiducia
• GAD
• IS Bank
• Natwest
• Volksbanken Raiffeisenbanken
• Wells Fargo
• Yandex

Attacked Entities

This spyware attempts to get information from a list of banks or financial institutions.

Stolen Information

This spyware saves the stolen information in the following file:

• %System%\twain32\user.ds

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

It sends the gathered information via HTTP POST to the following URL:

• http://{BLOCKED}-info.com/zeus/s.php

Other Details

This spyware checks for the presence of the following processes which are related to Outpost Personal Firewall and ZoneLabs Firewall Client:

• outpost.exe
• zlclient.exe

It terminates if either of the said processes exist. This is to ensure that it runs uninterrupted. It also has rootkit capabilities, which enables it to hide its processes and files from the user.

Variant Information

This spyware has the following MD5 hashes:

• 698195c0f8988e3a00963cbbb21e449c
• bb90e4eeba0251b218c15833ba04ea52

It has the following SHA1 hashes:

• 00b6baadccee6ef3410f2b4632576e2281a42dec
• 9b2ea98933a5f5fb6109cd5937ef6b604cd4eeb3