TROJANSPY.WIN32.FAREIT.HQ.HP

October 18, 2018
 Analysis by: Arvin Roi Macaraeg
 ALIASES:

TrojanSpy:MSIL/Siplog.A (Microsoft), Trojan.Win32.Droma.zmx (Kaspersky)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 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:

946,176 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

19 Jun 2016

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:

  • %User Temp%\tmp{Random Numbers}.tmp
  • %Application Data%\Helper\Mail.txt
  • %Application Data%\Helper\Mess.txt
  • %Application Data%\Helper\OS.txt
  • %User Temp%\{Random Characters}.dat

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, and 8.. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, and 8.)

It drops the following copies of itself into the affected system:

  • %User Temp%\i617\sys.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, and 8.)

It adds the following processes:

  • ""%Windows%\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "%Application Data%\Helper\Browser.txt""
  • ""%Windows%\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "%Application Data%\Helper\Mail.txt""
  • ""%Windows%\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "%Application Data%\Helper\Mess.txt""
  • ""%Windows%\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "%Application Data%\Helper\OS.txt""

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, and 8.)

Autostart Technique

This Trojan Spy drops the following file(s) in the Windows User Startup folder to enable its automatic execution at every system startup:

  • %User Startup%\sys.vbs

(Note: %User Startup% is the current user's Startup folder, which is usually C:\Windows\Profiles\{user name}\Start Menu\Programs\Startup on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu\Programs\Startup on Windows NT, C:\Documents and Settings\{User name}\Start Menu\Programs\Startup on Windows XP, or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, and 8.)

Other Details

This Trojan Spy connects to the following possibly malicious URL:

  • http://{BLOCKED}p.{BLOCKED}s.org/
  • http://{BLOCKED}3.{BLOCKED}v.al/panel//insert

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.572.05

FIRST VSAPI PATTERN DATE:

18 Oct 2018

VSAPI OPR PATTERN File:

14.573.00

VSAPI OPR PATTERN Date:

19 Oct 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

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.  
  • %User Temp%\tmp{Random Numbers}.tmp
  • %Application Data%\Helper\Mail.txt
  • %Application Data%\Helper\Mess.txt
  • %Application Data%\Helper\OS.txt
  • %User Temp%\{Random Characters}.dat
  • %User Startup%\sys.vbs
  • %User Temp%\i617\sys.exe

Step 4

Scan your computer with your Trend Micro product to delete files detected as TROJANSPY.WIN32.FAREIT.HQ.HP. 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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