TSPY_FAREIT.MOX

May 28, 2018
 Analysis by: Carl Maverick Pascual
 ALIASES:

PWS:Win32/Fareit (Microsoft) ; a variant of Win32/Injector.DXYV (ESET-Nod32)

 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 executes then deletes itself afterward.

  TECHNICAL DETAILS

File Size:

1,216,512 bytes

File Type:

EXE

Memory Resident:

No

Installation

This Trojan Spy drops and executes the following files:

  • %User Temp%\{random numbers}.bat -> deletes this file after execution

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp 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 executes then deletes itself afterward.

Other System Modifications

This Trojan Spy adds the following registry entries:

HKEY_CURRENT_USER\Software\WinRAR
HWID = {hex values}

HKEY_CURRENT_USER\Software\WinRAR
Client Hash = {hex values}

Other Details

This Trojan Spy connects to the following possibly malicious URL:

  • http://{BLOCKED}ygoodman.com/un/one.exe

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.274.04

FIRST VSAPI PATTERN DATE:

25 May 2018

VSAPI OPR PATTERN File:

14.275.00

VSAPI OPR PATTERN Date:

26 May 2018

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

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\WinRAR
    • HWID = {hex values}
  • In HKEY_CURRENT_USER\Software\WinRAR
    • Client Hash = {hex values}

Step 4

Scan your computer with your Trend Micro product to delete files detected as TSPY_FAREIT.MOX. 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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