TROJ_FAKEAV.ZKQ

This Trojan may be downloaded by other malware/grayware/spyware from remote sites. It may be dropped by other malware. It may be unknowingly downloaded by a user while visiting malicious websites.

It displays fake alerts that warn users of infection. It also displays fake scanning results of the affected system. It then asks for users to purchase it once scanning is completed. If users decide to purchase the rogue product, users are directed to a certain website asking for sensitive information, such as credit card numbers.

Arrival Details

This Trojan may be downloaded by other malware/grayware/spyware from remote sites.

It may be dropped by other malware.

It may be unknowingly downloaded by a user while visiting malicious websites.

Installation

This Trojan drops the following files:

• %User Profile%\Start Menu\Programs\Security Tool.lnk - shortcut to the dropped copy

(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)

It drops the following copies of itself into the affected system:

• %Application Data%\{random numbers}.exe

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Windows\Profiles\{user name}\Application Data on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Application Data on Windows NT, and C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003.)

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
{random numbers} = %Application Data%\{random numbers}.exe

Other Details

This Trojan does the following:

• If users decide to purchase the rogue product, users are directed to the following sites asking for sensitive information, such as credit card numbers:
  
  • http://{BLOCKED}trapay.com/buy.php
  • http://{BLOCKED}.{BLOCKED}.171.35/cb_soft.php
  • http://{BLOCKED}payform.biz/buy.php
• Upon execution, it displays the following graphical user interface (GUI):
  

  

  
  

  

  
  

  

• It may gather the following information if the user chooses to activate the product:
  
  • Credit card information such as card type, card number, expiration date, name
  • Contact information such as email, country, address, phone number

Rogue Antivirus Routine

This Trojan displays fake alerts that warn users of infection. It also displays fake scanning results of the affected system. It then asks for users to purchase it once scanning is completed. If users decide to purchase the rogue product, users are directed to a certain website asking for sensitive information, such as credit card numbers.