Analysis by: kathleenno
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This spyware executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

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.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size: 316,416 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 29 Jun 2011
Payload: Connects to URLs/IPs

Arrival Details

This spyware may be downloaded from the following remote sites:

  • http://{BLOCKED}is.{BLOCKED}laga.org/images/cancel.scr

Installation

This spyware drops the following files:

  • C:\tray0p2

It creates the following folders:

  • C:\tmp

Autostart Technique

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

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
APPLICATTION = "{malware path and file name}"

Download Routine

This spyware accesses the following websites to download files:

  • http://{BLOCKED}ormatica.net/oslo/images/cancel.txt

It saves the files it downloads using the following names:

  • C:\tmp\google-img.exe - also detected as TSPY_BANLOAD.AKM

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

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:

  • Banco Popular
  • Bank Intercom
  • Bankinter Inicio Bienvenida
  • Caixa Penedes
  • Caja de Ahorros Empresas
  • Caja de Ahorros Particulares
  • Cajasol
  • Portal la Caixa
  • Western Union

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.

Drop Points

This spyware sends the information it gathers to the following email addresses:

  • {BLOCKED}ng@gmail.com
  • {BLOCKED}rlos636@gmail.com

Other Details

This spyware attempts to access the following websites to download files, which are possibly malicious:

  • http://{BLOCKED}pa.es:81/images/cancel.txt

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine: 8.900
FIRST VSAPI PATTERN FILE: 8.256.11
FIRST VSAPI PATTERN DATE: 29 Jun 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

Identify and terminate files detected as TSPY_BANLOAD.AKM

[ Learn More ]
  1. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  2. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

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_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • APPLICATTION = {malware path and file name}

Step 4

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.
  • C:\tmp

Step 5

Search and delete this file

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.
  • C:\tray0p2

Step 6

Scan your computer with your Trend Micro product to delete files detected as TSPY_BANLOAD.AKM. 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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