TSPY_BANCOS.QSPN

July 21, 2011
 Analysis by: Roland Marco Dela Paz
 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 monitors Internet Explorer and Mozilla Firefox if the strings in the address bar or title bar are related to certain financial institutions based in Spain.

To get a one-glance comprehensive view of the behavior of this Spyware, refer to the Threat Diagram shown below.

Upon execution, this spyware connects to a site which contains links to where the spyware can report its installation. As of this writing, the site points to possibly compromised URLs. The HTTP request for the installation report it sends contains certain data.

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

  TECHNICAL DETAILS

File Size:

2,191,360 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

19 Jul 2011

Payload:

Connects to URLs/IPs

Arrival Details

This spyware may be downloaded by the following malware/grayware from remote sites:

  • TROJ_BANLOD.QSPN

It may be downloaded from the following remote sites:

  • http://www.{BLOCKED}rett.no/////mazda.exe
  • http://www.{BLOCKED}rett.no/mazda.exe

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
SIMP = "{malware path and file name}"

Information Theft

This spyware monitors the Internet Explorer (IE) activities of the affected system, specifically the address 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 and/or title bar:

  • Banco Popular
  • Bankinter
  • Caixa
  • Cajasol
  • Wester Union

Stolen Information

This spyware saves the stolen information in the following file:

  • C:\updspapi.dll

Drop Points

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

  • {BLOCKED}berto2015@gmail.com

NOTES:

Apart from monitoring the Internet Explorer activities, it also monitors the Mozilla Firefox. The abovementioned financial institutions are all based in Spain.

Upon execution, this spyware connects to the following site:

  • http://{BLOCKED}s:81/images/cancel.txt
The said site contains links to where the spyware can report its installation. As of this writing, the site points to the following possibly compromised URLs:
  • http://www.{BLOCKED}k.im/images/stories/dudley.php
  • http://{BLOCKED}be/cms/images/smilies/envio.php
  • http://{BLOCKED}ividad2011.es/cms//images/M_images/dlilype.php
The HTTP request for the installation report it sends contains the following data:
  • remetente=planet@sexo.com&destino={BLOCKED}rlos636@gmail.com&titulo=Registradora%20Eletronica: {computer name}&texto=Prezado Cliente!

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

8.300.08

FIRST VSAPI PATTERN DATE:

20 Jul 2011

VSAPI OPR PATTERN File:

8.301.00

VSAPI OPR PATTERN Date:

20 Jul 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

Remove the malware/grayware file that dropped/downloaded TSPY_BANCOS.QSPN

Step 3

Identify and terminate files detected as TSPY_BANCOS.QSPN

[ 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 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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    • SIMP = "{malware path and file name}"

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:\updspapi.dll

Step 6

Scan your computer with your Trend Micro product to delete files detected as TSPY_BANCOS.QSPN. 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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