Analysis by: Ardin Christopher Maglalang
ALIASES:

PWS:Win32/Fareit.gen!C(Microsoft), Trojan.Zbot(Norton), Win32/Kryptik.BBVN(ESET)

 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: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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.

As of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size: 121,344 bytes
File Type: EXE
Memory Resident: No

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.

Other System Modifications

This spyware adds the following registry keys:

HKEY_CURRENT_USER\Software\WinRAR
HWID = "{Random Value}"

Download Routine

This spyware accesses the following websites to download files:

  • http://{BLOCKED}emusic.net/8VpK.exe
  • http://{BLOCKED}nd.voremarketing.com/D38Z0.exe
  • http://{BLOCKED}olesale.com/Gd4ib3q.exe
  • http://ftp.{BLOCKED}hort.net/iWbMCxwi.exe

As of this writing, the said sites are inaccessible.

Stolen Information

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

  • http://{BLOCKED}{BLOCKED}.158.195:8080/forum/viewtopic.php
  • http://{BLOCKED}os.clicken1.com:81/forum/viewtopic.php
  • http://{BLOCKED}a.clicken1.com:81/forum/viewtopic.php
  • http://{BLOCKED}zul.clicken1.com:81/forum/viewtopic.php

  SOLUTION

Minimum Scan Engine: 9.700

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 key

[ 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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.

  • In HKEY_CURRENT_USER\Software\WinRAR
    • HWID = "{Random Value}"

Step 3

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