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TSPY_FAREIT.NHO

February 23, 2013
 Analysis by: Jaime Benigno Reyes
 ALIASES:

PWS:Win32/Fareit.gen!I (Microsoft), W32/Kryptik.WDV!tr (Fortinet), Trojan-PWS.Win32.Zbot.aql (v) (Sunbelt)

 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:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 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.

It executes then deletes itself afterward.

  TECHNICAL DETAILS

File Size:

85,128 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

20 Feb 2013

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.

Installation

This spyware executes then deletes itself afterward.

Other System Modifications

This spyware adds the following registry entries:

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

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

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

Download Routine

This spyware accesses the following websites to download files:

  • http://cdn-cache-node.com/1.exe
  • http://cdn-cache-node.com/6.exe

It saves the files it downloads using the following names:

  • %User Temp%\{random number}.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 and 7.)

Other Details

This spyware connects to the following possibly malicious URL:

  • http://{BLOCKED}.{BLOCKED}.137.237/gate.php
  • http://{BLOCKED}.{BLOCKED}.138.212/gate.php
  • http://{BLOCKED}.{BLOCKED}.139.225/gate.php
  • http://{BLOCKED}.{BLOCKED}.140.218/gate.php
  • http://{BLOCKED}.{BLOCKED}.141.214/gate.php
  • http://{BLOCKED}.{BLOCKED}.142.202/gate.php
  • http://{BLOCKED}.{BLOCKED}.143.189/gate.php
  • http://{BLOCKED}.{BLOCKED}.144.219/gate.php
  • http://{BLOCKED}.{BLOCKED}.145.215/gate.php
  • http://{BLOCKED}.{BLOCKED}.146.203/gate.php
  • http://{BLOCKED}.{BLOCKED}.147.203/gate.php
  • http://{BLOCKED}.{BLOCKED}.148.198/gate.php
  • http://{BLOCKED}.{BLOCKED}.149.202/gate.php
  • http://{BLOCKED}e-cdn-node.com/gate.php