Analysis by: Wilbert Vidal
ALIASES:

HackTool:Win32/Wpakill.C (Microsoft); Crack-WindowsWGA.b (McAfee); HackTool.Win32.WinCred.b (Kaspersky)

 PLATFORM:

Windows

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

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.

  TECHNICAL DETAILS

File Size: 9,458,428 bytes
File Type: EXE
Initial Samples Received Date: 24 Oct 2012

Arrival Details

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be manually installed by a user.

Installation

This Hacking Tool drops the following files:

  • %User Temp%\chew-wga.log
  • %User Temp%\ir_ext_temp_0\AutoPlay\Audio\Click1.ogg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Audio\High1.ogg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Audio\Shekere.ogg
  • %User Temp%\ir_ext_temp_0\AutoPlay\autorun.cdd
  • %User Temp%\ir_ext_temp_0\AutoPlay\Buttons\Baslat.Btn
  • %User Temp%\ir_ext_temp_0\AutoPlay\Buttons\button.btn
  • %User Temp%\ir_ext_temp_0\AutoPlay\Buttons\Cik11.Btn
  • %User Temp%\ir_ext_temp_0\AutoPlay\Buttons\Cik-2.Btn
  • %User Temp%\ir_ext_temp_0\AutoPlay\Buttons\Home2.Btn
  • %User Temp%\ir_ext_temp_0\AutoPlay\Buttons\Sol-4.Btn
  • %User Temp%\ir_ext_temp_0\AutoPlay\Icons\mainicon.ico
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\credits-screen.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\done-install.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\done-uninstall.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\genuine-chew.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\install-error.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\main-screen.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\uninstall-error.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\wait-install.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\wait-uninstall.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\win7-logo.jpg
  • %User Temp%\ir_ext_temp_0\AutoPlay\Images\Win7VistaLogo.png
  • %User Temp%\ir_ext_temp_0\AutoPlay\Plugins\IRDissolveTransition.tns
  • %User Temp%\ir_ext_temp_0\AutoPlay\Scripts\chew.enc
  • %User Temp%\ir_ext_temp_0\autorun.exe
  • %User Temp%\ir_ext_temp_0\autorun.exe.mbxcfg
  • %User Temp%\ir_ext_temp_0\mainicon.ico
  • %User Temp%\_ir_tmpfnt_1\Arial_1.TFT
  • %User Temp%\_ir_tmpfnt_1\Trajan Pro.TFT
  • %User Temp%\_ir_tmpfnt_1\Calibri_1.TFT

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Other Details

This Hacking Tool does the following:

  • This hacking tool bypasses the genuine check of Microsoft's Windows Genuine Advantage to allow using of pirated versions of Windows.