Analysis by: Odessy Silva
 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This spyware may be dropped by other malware.

It acts as a Browser Helper Object (BHO) that monitors a user's Internet-browsing habits.

  TECHNICAL DETAILS

File Size: 2,283,520 bytes
File Type: DLL
Memory Resident: Yes
Initial Samples Received Date: 24 May 2014
Payload: Compromises system security

Arrival Details

This spyware may be dropped by other malware.

Autostart Technique

This spyware adds the following registry entries to install itself as a Browser Helper Object (BHO):

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{CLSID}
NoExplorer = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{CLSID}\InprocServer32
(Default) = "{malware path and file name}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{CLSID}\InprocServer32
ThreadingModel = "Apartment"

HKEY_CLASSES_ROOT\CLSID\{CLSID}\
InprocServer32
(Default) = "{malware path and file name}"

HKEY_CLASSES_ROOT\CLSID\{CLSID}\
InprocServer32
ThreadingModel = "Apartment"

It acts as a Browser Helper Object (BHO) that monitors a user's Internet-browsing habits.

Other System Modifications

This spyware adds the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{CLSID}

HKEY_CLASSES_ROOT\CLSID\{CLSID}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{CLSID}

Stolen Information

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

  • http://bit.ly/{BLOCKED}ni

NOTES:

The URL http://bit.ly/{BLOCKED}ni redirects to http://www.{BLOCKED}ople.com.br/wp-content/uploads/2012/12/logo-gvt.gif.

  SOLUTION

Minimum Scan Engine: 9.700

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product and note files detected as TSPY_BANKER.TOH

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Delete this registry key

[ 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\Classes\CLSID
    • {CLSID}
  • In HKEY_CLASSES_ROOT\CLSID
    • {CLSID}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
    • {CLSID}

Step 5

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_BANKER.TOH. 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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