TSPY_BANKER.LUP

 Analysis by: Kathleen Notario

 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW


This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

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 attempts to steal information, such as user names and passwords, used when logging into certain banking or finance-related websites.

  TECHNICAL DETAILS

File Size:

3,615,744 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

11 Aug 2010

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Autostart Technique

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

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Winnet2 = {malware path and filename}

Other System Modifications

This Trojan adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Description\
Microsoft\Rpc\Uuid\
TemporaryData
NetworkAddress = {hexadecimal value}

HKEY_LOCAL_MACHINE\SOFTWARE\Description\
Microsoft\Rpc\Uuid\
TemporaryData
NetworkAddressLocal = 0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
MSSQLServer\Client\SuperSocketNetLib\
LastConnect
sqlserver01.espacopublicidade.tecnologia.ws = -687210486:tcp:sqlserver01.espacopublicidade.tecnologia.ws,1433

Information Theft

This Trojan 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:

  • Acesso ao Net Banking Nossa Caixa
  • Bradesco
  • Nossa Chave de Seguranca

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

  • Bradesco
  • Nossa Caixa

Stolen Information

This Trojan sends the gathered information via HTTP POST to the following URL:

  • http://www.{BLOCKED}k.sitebr.net/{BLOCKED}os/tabela.php

It sends the data it gathers to the following email addresses via SMTP:

  • {BLOCKED}ahora2@gmail.com

Variant Information

This Trojan has the following MD5 hashes:

  • 332f937b530d5d332fc4bdaa18ded55e

It has the following SHA1 hashes:

  • 0e73475ec3a87b7495e07f85e5715e38e730e18b

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI OPR PATTERN File:

7.384.05

VSAPI OPR PATTERN Date:

15 Aug 2010

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

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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • Winnet2={malware path and filename}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Description\Microsoft\Rpc\Uuid\TemporaryData
    • NetworkAddress={hexadecimal value}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Description\Microsoft\Rpc\Uuid\TemporaryData
    • NetworkAddressLocal=0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer\Client\SuperSocketNetLib\LastConnect
    • sqlserver01.espacopublicidade.tecnologia.ws=-687210486:tcp:sqlserver01.espacopublicidade.tecnologia.ws,1433

Step 3

Scan your computer with your Trend Micro product to delete files detected as TSPY_BANKER.LUP. 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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