TSPY_BANKER.DON
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware may be dropped by other malware.
It attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites.
It connects to certain websites to send and receive information.
TECHNICAL DETAILS
Arrival Details
This spyware may be dropped by other malware.
Installation
This spyware is injected into the following processes running in memory:
- IEXPLORE.EXE
Autostart Technique
This spyware registers itself as a BHO to ensure its automatic execution every time Internet Explorer is used by adding the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{6C26A577-FBE2-4428-A567-503A9CC5AD10}
NoExplorer = "1"
Other System Modifications
This spyware adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
EXT\CLSID
{6C26A577-FBE2-4428-A567-503A9CC5AD10} = "1"
It adds the following registry keys as part of its installation routine:
HKEY_CLASSES_ROOT\CLSID\{6C26A577-FBE2-4428-A567-503A9CC5AD10}
HKEY_CLASSES_ROOT\CLSID\{8F577DD6-A889-B773-13C5-1FBA13C51FBA}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{6C26A577-FBE2-4428-A567-503A9CC5AD10}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{8F577DD6-A889-B773-13C5-1FBA13C51FBA}
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:
- hotmail
- facebook.com
- http://itau.com.br/
- http://www.caixa.com.br
- http://www.caixa.gov.br
- http://www.itau.com.br/
- http://www.itaupersonnalite.com.br
- http://www.itauuniclass.com.br
- http://www.santanderempresarial.com.br
- https://aapj.bb.com.br
- https://bradesconetempresa.com.br
- https://internetbanking.caixa.gov.br
- https://www.ib2.bradesco.com.br
- https://www.santandernetibe.com.br
- https://www2.bancobrasil.com.br
- login.live.com
- mail.terra.com.br/
- twitter.com/
- www.4shared.com/
- www.bb.com.br
- www.orkut.com
- www.uol.com.br/
It attempts to steal information from the following banks and/or other financial institutions:
- 4Shared.com
- Banco Brasil
- Caixa
- Facebook.com
- Hotmail
- Itau
- Live.com
- Orkut.com
- Santander
- Terra Mail
- Twitter.com
- UOL.com
Other Details
This spyware connects to the following website to send and receive information:
- http://{BLOCKED}shishio.com
SOLUTION
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_BANKER.DON
Step 3
Restart in Safe Mode
Step 4
Delete this registry key
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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.
- In HKEY_CLASSES_ROOT\CLSID
- {6C26A577-FBE2-4428-A567-503A9CC5AD10}
- {6C26A577-FBE2-4428-A567-503A9CC5AD10}
- In HKEY_CLASSES_ROOT\CLSID
- {8F577DD6-A889-B773-13C5-1FBA13C51FBA}
- {8F577DD6-A889-B773-13C5-1FBA13C51FBA}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {6C26A577-FBE2-4428-A567-503A9CC5AD10}
- {6C26A577-FBE2-4428-A567-503A9CC5AD10}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {8F577DD6-A889-B773-13C5-1FBA13C51FBA}
- {8F577DD6-A889-B773-13C5-1FBA13C51FBA}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
- {6C26A577-FBE2-4428-A567-503A9CC5AD10}
- {6C26A577-FBE2-4428-A567-503A9CC5AD10}
Step 5
Delete this registry value
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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\EXT\CLSID
- {6C26A577-FBE2-4428-A567-503A9CC5AD10} = "1"
- {6C26A577-FBE2-4428-A567-503A9CC5AD10} = "1"
Step 6
Search and delete the file detected as TSPY_BANKER.DON
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_BANKER.DON. 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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