TSPY_QBSTEAL.B

September 02, 2016
 Analysis by: Francis Xavier Antazo
 PLATFORM:

Windows

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

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

It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size:

116224 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

05 Aug 2016

Payload:

Connects to URLs/IPs, Downloads files

Arrival Details

This spyware 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 spyware drops the following copies of itself into the affected system and executes them:

  • %Application Data%\Oracle\JavaUpdate.exe

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It adds the following processes:

  • explorer.exe
  • cmd.exe

It adds the following mutexes to ensure that only one of its copies runs at any one time:

  • QuBank-2016

Autostart Technique

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

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Java Updater = "rundll32.exe shell32.dll, ShellExec_RunDLL %Application Data%\Oracle\JavaUpdate.exe"

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
Java Updater = "rundll32.exe shell32.dll, ShellExec_RunDLL %Application Data%\Oracle\JavaUpdate.exe"

Other System Modifications

This spyware modifies the following file(s):

  • {firefox path}\prefs.js

Download Routine

This spyware connects to the following URL(s) to download its component file(s):

  • www.{BLOCKED}sgetexposed.online/Sqlite3.dll
  • www.{BLOCKED}sgetexposed.online/SocksModule.BIN
  • http://www.{BLOCKED}shop.club/SocksModule.BIN
  • http://www.{BLOCKED}shop.club/JoinMe.exe

It saves the files it downloads using the following names:

  • %Application Data%\Oracle\Sqlite3.BIN
  • %Application Data%\Oracle\JoinMe\JoinMe.exe

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

Information Theft

This spyware gathers the following data:

  • Chrome login credentials
    • username
    • password
    • site
  • Firefox login credentials
    • username
    • password
    • site
  • username
  • os version
  • bot access
  • installed AV

Other Details

This spyware connects to the following website to send and receive information:

  • {BLOCKED}s.strangled.netSendDataGrabbed=

  SOLUTION

Minimum Scan Engine:

9.800

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

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 3

Scan your computer with your Trend Micro product to delete files detected as TSPY_QBSTEAL.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 this Knowledge Base page for more information.

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

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
    • Java Updater = "rundll32.exe shell32.dll, ShellExec_RunDLL %Application Data%\Oracle\JavaUpdate.exe"
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • Java Updater = "rundll32.exe shell32.dll, ShellExec_RunDLL %Application Data%\Oracle\JavaUpdate.exe"

Step 6

Search and delete these files

[ 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.
  • %Application Data%\Oracle\Sqlite3.BIN
  • %Application Data%\Oracle\JoinMe\JoinMe.exe

Step 7

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_QBSTEAL.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 this Knowledge Base page for more information.

Step 8

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

  • {firefox path}\prefs.js


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