Analysis by: Jeanne Jocson
ALIASES:

PWS:Win32/Fareit (Microsof), Win32/PSW.Fareit.A (ESET), Trojan-PSW.Win32.Tepfer.vavl (Kaspersky)

 PLATFORM:

Windows

 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.

It deletes itself after execution.

  TECHNICAL DETAILS

File Size: 188,416 bytes
File Type: EXE
Initial Samples Received Date: 22 Apr 2015

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\Local AppWizard-Generated Applications\
MyStdioFile\Settings

HKEY_CURRENT_USER\Software\WinRAR

It adds the following registry entries:

HKEY_CURRENT_USER\Software\WinRAR
HWID = "{hex values}"

Other Details

This spyware connects to the following possibly malicious URL:

  • http://{BLOCKED}9.experthost.com/33/71.exe
  • http://{BLOCKED}y.com/33/71.exe
  • http://{BLOCKED}mstrippers.com/33/71.exe
  • http://www.{BLOCKED}mstrippers.com/33/71.exe
  • http://{BLOCKED}s.in
  • http://{BLOCKED}y.com

It deletes itself after execution.

  SOLUTION

Minimum Scan Engine: 9.800
VSAPI OPR PATTERN File: 11.621.00
VSAPI OPR PATTERN Date: 23 Apr 2015

NOTES:

Trend customers:

    Keep your pattern and scan engine files updated. Trend Micro antivirus software can clean or remove most types of computer threats. Malware, though, such as Trojans, scripts, overwriting viruses and joke programs which are identified as uncleanable, should simply be deleted.

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  • Use HouseCall - the Trend Micro online threat scanner to check for malware that may already be on your PC.
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