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.

Adware.EasyWWW

Adware.EasyWWW

Updated:
February 13, 2007
Publisher:
easywww.com
Risk Impact:
High
File Names:
Easywww.exe,Easywww2.exe,Payload.exe
Systems Affected:
Windows

Behavior


Adware.EasyWWW is a set of components that displays advertisements by hooking various settings in Internet Explorer.

Adware.EasyWWW can download and execute programs from the producer of this software.

Symptoms


The files are detected as Adware.EasyWWW.

Behavior


Adware.EasyWWW is generally silently installed when you visit certain Web sites. This is usually accomplished by exploiting vulnerabilities in Internet Explorer.

Antivirus Protection Dates

  • Initial Rapid Release version October 02, 2014 revision 022
  • Latest Rapid Release version April 06, 2015 revision 025
  • Initial Daily Certified version December 12, 2003
  • Latest Daily Certified version April 07, 2015 revision 001
  • Initial Weekly Certified release date December 17, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

When the first component of Adware.EasyWWW is downloaded and executed, it contacts the Adware.EasyWWW Web site and requests instructions as to what to do next.

The actions that this first component can take are to:
  • Download and execute a program specified by the Adware.EasyWWW publisher.
  • Change the Internet Explorer search bar to a specific Web site.
  • Download and install a browser helper object.
  • Add an entry (or entries) to the computer's Hosts file.


Other components that can be downloaded can do any or all of the following:
  • Place a reference to themselves in the Windows registry \Run key so they are executed each time you start Windows.
  • Change the Internet Explorer Home page.
  • Change the default Internet Explorer Search bar and Search page.
  • Download and execute programs.
  • Add an entry (or entries) to the computer's Hosts file.



The following instructions pertain to all Symantec antivirus products that support Security Risk detection.
  1. Update the definitions.
  2. Reset the Internet Explorer Home and Search pages.
  3. Run a full system scan and delete all the files detected as Adware.EasyWWW.
  4. Deleting any values that were added to the registry.
For specific details on each of these steps, read the following instructions.

1. Updating the definitions
To obtain the most recent definitions, start your Symantec program and run LiveUpdate.

2. Reset the Internet Explorer Home and Search pages
  1. Start Internet Explorer.
  2. Click the Tools menu > Internet Options.
  3. On the Programs Tab, click "Reset Web Settings."
  4. In the Reset Web Settings box, make sure that "Also reset my home page" is selected, and then click Yes.


3. Scanning for and deleting the files
  1. Start Norton AntiVirus and make sure that it is configured to scan all files. For more information, read the document, "How to configure Norton AntiVirus to scan all files."
  2. Run a full system scan.
  3. If any files are detected as Adware.EasyWWW, write down the path and file names, and then click Delete.


    Note: If your Symantec antivirus product reports that it cannot delete a detected file, write down the path and file names. Then use Windows Explorer to locate and delete the file. If Windows also reports that it cannot delete the file, shut down the computer and turn off the power. Wait for at least 30 seconds, and then restart the computer in Safe mode or VGA mode. For instructions, read the document, "How to start the computer in Safe Mode."
4. Deleting the values from the registry


WARNING: Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified keys only. Read the document, "How to make a backup of the Windows registry ," for instructions.
  1. Click Start, and then click Run. (The Run dialog box appears.)
  2. Type regedit

    Then click OK. (The Registry Editor opens.)

  3. Navigate to the key:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

  4. In the right pane, delete any value that refers to a file name that was detected as Adware.EasyWWW.
  5. Repeat step d for these keys:

    Note: All of the keys do not exist on all the systems.

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunService

    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunService

  6. Exit the Registry Editor.