Analysis by: Erika Bianca Mendoza
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Upon execution, this Trojan displays a convincing GUI to make the program look legitimate. This allows the user to input confidential bank account information.

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

  TECHNICAL DETAILS

File Size: 1,236,992 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 16 Aug 2011
Payload: Steals information

Arrival Details

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

NOTES:

Upon execution, this Trojan displays a convincing GUI to make the program look legitimate. This allows the user to input confidential bank account information.

It targets the following bank:

  • Banco Brasil

The gathered information is then be sent to a remote user via SMTP.

  SOLUTION

Minimum Scan Engine: 8.900
FIRST VSAPI PATTERN FILE: 8.349.80
FIRST VSAPI PATTERN DATE: 11 Aug 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 TROJ_BANKER.FLT

Step 3

Terminate the malware/grayware/spyware process:

[ Learn More ]
  • For Windows 98 and ME users, Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  • 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.
  • If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

    • Step 4

    Scan your computer with your Trend Micro product to delete files detected as TROJ_BANKER.FLT. 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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