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TSPY_BANKER.THBAIAH

April 25, 2023
 Analysis by: Jayvee Mark Villaroman
 ALIASES:

Trojan:Win32/Fuery.E!bit (MICROSOFT)

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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

  TECHNICAL DETAILS

File Size:

458,752 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

19 Feb 2018

Arrival Details

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

Installation

This Trojan Spy drops the following files:

  • %System%\wbem\repository\WRITABLE.TST
  • %System%\wbem\Performance\WmiApRpl_new.h

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

It adds the following processes:

  • cmd /c sc Create ChannelRent binPath= "cmd /c start %System%\Com\vsx.vbs" type= own type= interact start= auto
  • %System%\wbem\wmiprvse.exe -secured -Embedding
  • %System%\wbem\wmiprvse.exe -Embedding
  • \?\%System%\wbem\WMIADAP.EXE wmiadap.exe /F /T /R
  • sc Create ChannelRent binPath= "cmd /c start %System%\Com\vsx.vbs" type= own type= interact start= auto

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Other Details

This Trojan Spy adds and runs the following services:

SERVICE_AUTO_START
ChannelRent = cmd /c start %System%\Com\vsx.vbs

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

13.976.04

FIRST VSAPI PATTERN DATE:

19 Feb 2018

VSAPI OPR PATTERN File:

13.977.00

VSAPI OPR PATTERN Date:

20 Feb 2018

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

    • Troj.Win32.TRX.XXPE518FF022

Step 2

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 3

Search and delete this file

[ Learn More ]
There may be some 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.
%System%\wbem\repository\WRITABLE.TST
%System%\wbem\Performance\WmiApRpl_new.h

Step 4

Scan your computer with your Trend Micro product to delete files detected as TSPY_BANKER.THBAIAH. 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 the following Trend Micro Support pages for more information:


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