TSPY_FAREIT.LCN

August 01, 2013
 Analysis by: Alvin Bacani
 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet

This Trojan 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 then deletes itself afterward.

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

  TECHNICAL DETAILS

File Size:

118,784 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

31 Jul 2013

Arrival Details

This Trojan 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 executes then deletes itself afterward.

Other System Modifications

This Trojan adds the following registry entries as part of its installation routine:

HKEY_CURRENT_USER\Software\WinRAR
HWID = "{GUID}"

HKEY_CURRENT_USER\Software\WinRAR
Client Hash = "{random value}"

HKEY_CURRENT_USER\Software\WinRAR
Client Hash = "{random value}"

HKEY_CURRENT_USER\Software\WinRAR
{random} = "{random value}"

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

  • http://{BLOCKED}crystal.ch/0ijiK8Y.exe
  • http://{BLOCKED}mresidence.com/j7qtsL.exe
  • http://ftp.{BLOCKED}olutions.com/REXLa9.exe

Trend Micro detects the dowloaded file as:

  • TSPY_ZBOT.LCG

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

Information Theft

This Trojan attempts to steal stored account information used in the following installed File Transfer Protocol (FTP) clients or file manager software:

  • 3D-FTP
  • ALFTP
  • AceBIT
  • BitKinex
  • BlazeFtp
  • Bullet Proof FTP
  • ClassicFTP
  • CoffeeCup
  • CoreFTP
  • CuteFTP
  • Cyberduck
  • EasyFTP
  • ExpanDrive
  • FFFTP
  • FTP
  • FTP Explorer
  • FTPClient
  • FTPNow
  • FTPRush
  • FTPShell
  • FTPVoyager
  • Far
  • Far2
  • FileZilla
  • FlashFXP
  • Fling
  • Frigate3
  • Ghisler
  • LeapFTP
  • LeechFTP
  • LinasFTP
  • NetDrive
  • NetSarang
  • NovaFTP
  • PuTTY
  • Robo-FTP
  • SeaMonkey
  • SecureFX
  • SmartFTP
  • Staff-FTP
  • TurboFTP
  • WS_FTP
  • WebDrive
  • WinFTP
  • WinZip

It gathers the following account information from any of the mentioned File Transfer Protocol (FTP) clients or file manager software:

  • Directory list
  • Password
  • Port Number
  • Server Name
  • Server Type
  • User Name

It attempts to steal stored email credentials from the following:

  • BatMail
  • IncrediMail
  • Outlook
  • Pocomail
  • Thunderbird
  • Windows Live Mail
  • Windows Mail

It attempts to get stored information such as user names, passwords, and hostnames from the following browsers:

  • Chrome
  • ChromePlus
  • Chromium
  • FastStone Browser
  • Flock
  • Internet Explorer
  • K-Meleon
  • Mozilla Firefox
  • Opera Browser

Stolen Information

This Trojan sends the gathered information via HTTP POST to the following URL:

  • http://www.{BLOCKED}i.com:8080/ponyb/gate.php
  • http://{BLOCKED}i.com:8080/ponyb/gate.php
  • http://{BLOCKED}.185.72:8080/ponyb/gate.php
  • http://{BLOCKED}utriggercafe.com/ponyb/gate.php

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

10.188.06

FIRST VSAPI PATTERN DATE:

31 Jul 2013

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

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 = "{GUID}"
  • In HKEY_CURRENT_USER\Software\WinRAR
    • Client Hash = "{Random Value}"
  • In HKEY_CURRENT_USER\Software\WinRAR
    • {Random} = "{Random Value}"

Step 3

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


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