Threat Explorer

The Threat Explorer is a comprehensive resource consumers can turn to for daily, accurate, up-to-date information on the latest threats, risks and vulnerabilities.

SystemTool

SystemTool

Updated:
December 16, 2010
Also Known As:
SystemTool 2011 [Symantec]
Infection Length:
332,288 bytes
Name:
System Tool 2011
Risk Impact:
Medium
Systems Affected:
Windows

Behavior

SystemTool is a misleading application that may give exaggerated reports of threats on the computer.

Note: The SystemTool program may be repackaged using several alternative names.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version February 01, 2015 revision 020
  • Initial Daily Certified version December 16, 2010 revision 002
  • Latest Daily Certified version September 23, 2011 revision 025
  • Initial Weekly Certified release date December 22, 2010
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Behavior
The program reports false or exaggerated system security threats on the computer.




The user is then prompted to pay for a full license of the application in order to remove the threats.





The program sets the desktop wallpaper to an image that contains the following text:
WARNING!
YOUR'RE IN DANGER!
YOUR COMPUTER IS INFECTED WITH SPYWARE!
ALL YOU DO WITH COMPUTER IS STORED FOREVER IN YOUR HARD DISK.
WHEN YOU VISIT SITES, SEND EMAILS... ALL YOUR ACTIONS ARE LOGGED. AND IT IS IMPOSSIBLE TO REMOVE THEM WITH STANDARD TOOLS. YOUR DATA IS STILL AVAILABLE FOR FORENSICS. AND IN SOME CASES

FOR YOUR BOSS, YOUR FRIENDS, YOUR WIFE, YOUR CHILDREN. Every site you or somebody or even something, like spyware, opened in your browsers, with all the images, and all the downloaded and maybe later removed movies or mp3 songs - ARE STILL THERE and could break your life!

SECURE YOURSELF RIGHT NOW!
REMOVE ALL SPYWARE FROM YOUR PC!





It then ends all programs running on the computer.

It also prevents users from launching new processes, displaying the following fake message:
WARNING!
Application cannot be executed. The file [FILE NAME] is infected.
Please activate your antivirus software.



It may attempt to connect to the following URL to signal infection:
  • http://[IP ADDRESS]/install.php?affid=[AFFILIATE ID]
  • http://[IP ADDRESS]api/stats/install/[ID]/[AFFILIATE ID]
  • http://[IP ADDRESS]/api/urls/?affid=[AFFILIATE ID]

Where [IP ADDRESS] could be any of the following:
  • 195.3.147.14
  • 178.162.174.147


Fake names

  • System Tool 2011
  • Personal Shield Pro 2011
  • Security Tool 2011
  • Winweb Security 2011
  • System Security 2011
  • Security Shield 2011
  • MS Removal Tool 2011
  • Essential Cleaner 2011

Installation
When the program is executed, it copies itself as the following file:
%SystemDrive%\Documents and Settings\All Users\Application Data\[FIVE RANDOM LETTERS][FIVE RANDOM NUMBERS]\[FIVE RANDOM LETTERS][FIVE RANDOM NUMBERS].exe

It also creates the following file:
%SystemDrive%\Documents and Settings\All Users\Application Data\[FIVE RANDOM LETTERS][FIVE RANDOM NUMBERS]\[FIVE RANDOM LETTERS][FIVE RANDOM NUMBERS]

Next, the program creates the following registry entry so that it executes whenever Windows starts:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce\"[FIVE RANDOM LETTERS][FIVE RANDOM NUMBERS]" = "%SystemDrive%\Documents and Settings\All Users\Application Data\[FIVE RANDOM LETTERS][FIVE RANDOM NUMBERS]\[FIVE RANDOM LETTERS][FIVE RANDOM NUMBERS].exe"

The risk may also create the following files:
  • %UserProfile%\Start Menu\Programs\[EDITION] 2011.lnk
  • %UserProfile%\Start Menu\Programs\[EDITION]2011.lnk
  • %UserProfile%\Start Menu\Programs\[EDITION]\[EDITION] 2011.lnk
  • %UserProfile%\Start Menu\Programs\[EDITION]\[EDITION]2011.lnk
  • %UserProfile%\Desktop\[EDITION] 2011.lnk
  • %UserProfile%\Desktop\[EDITION]2011.lnk

Where [EDITION] is one of the following strings:
  • Personal Shield Pro
  • System Tool
  • Security Tool
  • Winweb Security
  • System Security
  • Security Shield
  • MS Removal Tool
  • Essential Cleaner
You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your computer has been affected by this risk.

Before proceeding further we recommend that you run a full system scan . If that does not resolve the problem you can try one of the options available below.



FOR NORTON USERS
If you are a Norton product user, we recommend you try the following resources to remove this risk.

Removal Tool

If you have an infected Windows system file, you may need to replace them using from the Windows installation CD .


How to reduce the risk of infection
The following resources provide further information and best practices to help reduce the risk of infection.


FOR BUSINESS USERS
If you are a Symantec business product user, we recommend you try the following resources to remove this risk.

Identifying and submitting suspect files
Submitting suspicious files to Symantec allows us to ensure that our protection capabilities keep up with the ever-changing threat landscape. Submitted files are analyzed by Symantec Security Response and, where necessary, updated definitions are immediately distributed through LiveUpdate™ to all Symantec end points. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.


Removal Tool

If you have an infected Windows system file, you may need to replace them using from the Windows installation CD .


How to reduce the risk of infection
The following resource provides further information and best practices to help reduce the risk of infection.
Protecting your business network



MANUAL REMOVAL
The following instructions pertain to all current Symantec antivirus products.

1. Performing a full system scan
How to run a full system scan using your Symantec product


2. Restoring settings in the registry
Many risks make modifications to the registry, which could impact the functionality or performance of the compromised computer. While many of these modifications can be restored through various Windows components, it may be necessary to edit the registry. See in the Technical Details of this writeup for information about which registry keys were created or modified. Delete registry subkeys and entries created by the risk and return all modified registry entries to their previous values.