Analysis by: Jayvee Mark Villaroman
ALIASES:

Win64/PSW.SneakyStealer_AGen.B (NOD32)

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Canal de infección Dropped by other malware, Downloaded from the Internet

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

Tamaño del archivo 3,842,560 bytes
Tipo de archivo DLL
Residente en memoria No
Fecha de recepción de las muestras iniciales 20 Apr 2023
Carga útil Drops files, Steals information

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:

  • %AppData%\Local\{Compromised browser}\User Data\Default\Login Data_copy_
  • %AppData%\Local\{Compromised browser}\User Data\Default\Web Data_copy_
  • %AppData%\Local\{Compromised browser}\User Data\Default\History_copy_
  • %System Root%\Users\Public\Libraries\BrowserData\Result\LoginData.csv
  • %System Root%\Users\Public\Libraries\BrowserData\Result\Administrator@History.csv

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

Information Theft

This Trojan Spy gathers the following data:

  • Stored credentials, history, and etc. from the following browsers:
    • Google Chrome
    • Microsoft Edge
    • Mozilla Firefox
    • Yandex

  SOLUTION

Motor de exploración mínimo 9.800
Primer archivo de patrones de VSAPI 18.396.03
Primera fecha de publicación de patrones de VSAPI 20 Apr 2023
Versión de patrones OPR de VSAPI 18.397.00
Fecha de publicación de patrones OPR de VSAPI 21 Apr 2023

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.XXPE50FFF067

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 4

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.
  • %AppData%\Local\{Compromised browser}\User Data\Default\Login Data_copy_
  • %AppData%\Local\{Compromised browser}\User Data\Default\Web Data_copy_
  • %AppData%\Local\{Compromised browser}\User Data\Default\History_copy_
  • %System Root%\Users\Public\Libraries\BrowserData\Result\LoginData.csv
  • %System Root%\Users\Public\Libraries\BrowserData\Result\Administrator@History.csv

Step 5

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win64.STEALDEAL.B. 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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