➔
search
✕

TSPY_INFOSTEAL.XTS

June 12, 2017
 Analysis by: Joselyn Canuela
 ALIASES:

TR/Dropper.MSIL.Gen (Avira), Win32.Trojan.WisdomEyes.16070401.9500.9742 (Baidu), Trojan.Dropper (Ikarus)

 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

Infection Channel:

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.

It gathers certain information on the affected computer.

It connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

14,336 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

08 Jun 2017

Payload:

Connects to URLs/IPs

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 adds the following processes:

  • cmd.exe /c wmic os get "SerialNumber" | find /v "SerialNumber" -> get OS Serial Number
  • cmd.exe /c echo %userdomain%\%username% -> get user information

It creates the following folders:

  • %Application Data%\Windows Common Files\ups
  • %Application Data%\Windows Common Files\dns

(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.)

Information Theft

This Trojan Spy gathers the following information on the affected computer:

  • OS Serial Number
  • Username and Domain

Other Details

This Trojan Spy connects to the following website to send and receive information:

  • http://{BLOCKED}ate.com/default.aspx

It requires the existence of the following files to properly run:

  • C:\Users\Public\Public\backup.bk -> contains website information

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.398.03

FIRST VSAPI PATTERN DATE:

11 May 2017

VSAPI OPR PATTERN File:

13.399.00

VSAPI OPR PATTERN Date:

12 May 2017

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

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.  
  • %Application Data%\Windows Common Files\ups
  • %Application Data%\Windows Common Files\dns

Step 4

Scan your computer with your Trend Micro product to delete files detected as TSPY_INFOSTEAL.XTS. 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.


Did this description help? Tell us how we did.